diff --git a/_pytest/_code/code.py b/_pytest/_code/code.py
index 86ff66cdc..3fb232bd4 100644
--- a/_pytest/_code/code.py
+++ b/_pytest/_code/code.py
@@ -248,7 +248,7 @@ class TracebackEntry(object):
             line = str(self.statement).lstrip()
         except KeyboardInterrupt:
             raise
-        except:
+        except:  # noqa
             line = "???"
         return "  File %r:%d in %s\n  %s\n" % (fn, self.lineno + 1, name, line)
 
@@ -336,16 +336,16 @@ class Traceback(list):
             # XXX needs a test
             key = entry.frame.code.path, id(entry.frame.code.raw), entry.lineno
             # print "checking for recursion at", key
-            l = cache.setdefault(key, [])
-            if l:
+            values = cache.setdefault(key, [])
+            if values:
                 f = entry.frame
                 loc = f.f_locals
-                for otherloc in l:
+                for otherloc in values:
                     if f.is_true(f.eval(co_equal,
                                         __recursioncache_locals_1=loc,
                                         __recursioncache_locals_2=otherloc)):
                         return i
-            l.append(entry.frame.f_locals)
+            values.append(entry.frame.f_locals)
         return None
 
 
@@ -476,12 +476,12 @@ class FormattedExcinfo(object):
             s = str(source.getstatement(len(source) - 1))
         except KeyboardInterrupt:
             raise
-        except:
+        except:  # noqa
             try:
                 s = str(source[-1])
             except KeyboardInterrupt:
                 raise
-            except:
+            except:  # noqa
                 return 0
         return 4 + (len(s) - len(s.lstrip()))
 
diff --git a/_pytest/_code/source.py b/_pytest/_code/source.py
index 8b0bc3b44..2638c598b 100644
--- a/_pytest/_code/source.py
+++ b/_pytest/_code/source.py
@@ -255,7 +255,7 @@ def findsource(obj):
         sourcelines, lineno = py.std.inspect.findsource(obj)
     except py.builtin._sysex:
         raise
-    except:
+    except:  # noqa
         return None, -1
     source = Source()
     source.lines = [line.rstrip() for line in sourcelines]
@@ -320,22 +320,22 @@ def get_statement_startend2(lineno, node):
     import ast
     # flatten all statements and except handlers into one lineno-list
     # AST's line numbers start indexing at 1
-    l = []
+    values = []
     for x in ast.walk(node):
         if isinstance(x, _ast.stmt) or isinstance(x, _ast.ExceptHandler):
-            l.append(x.lineno - 1)
+            values.append(x.lineno - 1)
             for name in "finalbody", "orelse":
                 val = getattr(x, name, None)
                 if val:
                     # treat the finally/orelse part as its own statement
-                    l.append(val[0].lineno - 1 - 1)
-    l.sort()
-    insert_index = bisect_right(l, lineno)
-    start = l[insert_index - 1]
-    if insert_index >= len(l):
+                    values.append(val[0].lineno - 1 - 1)
+    values.sort()
+    insert_index = bisect_right(values, lineno)
+    start = values[insert_index - 1]
+    if insert_index >= len(values):
         end = None
     else:
-        end = l[insert_index]
+        end = values[insert_index]
     return start, end
 
 
diff --git a/_pytest/assertion/rewrite.py b/_pytest/assertion/rewrite.py
index 34fc0c8f6..1ab474cf7 100644
--- a/_pytest/assertion/rewrite.py
+++ b/_pytest/assertion/rewrite.py
@@ -210,7 +210,7 @@ class AssertionRewritingHook(object):
             mod.__cached__ = pyc
             mod.__loader__ = self
             py.builtin.exec_(co, mod.__dict__)
-        except:
+        except:  # noqa
             if name in sys.modules:
                 del sys.modules[name]
             raise
diff --git a/_pytest/assertion/util.py b/_pytest/assertion/util.py
index 69cd9c630..511d98ef1 100644
--- a/_pytest/assertion/util.py
+++ b/_pytest/assertion/util.py
@@ -54,11 +54,11 @@ def _split_explanation(explanation):
     """
     raw_lines = (explanation or u('')).split('\n')
     lines = [raw_lines[0]]
-    for l in raw_lines[1:]:
-        if l and l[0] in ['{', '}', '~', '>']:
-            lines.append(l)
+    for values in raw_lines[1:]:
+        if values and values[0] in ['{', '}', '~', '>']:
+            lines.append(values)
         else:
-            lines[-1] += '\\n' + l
+            lines[-1] += '\\n' + values
     return lines
 
 
diff --git a/_pytest/config.py b/_pytest/config.py
index ccc7e7b8a..b65ce9a51 100644
--- a/_pytest/config.py
+++ b/_pytest/config.py
@@ -1152,10 +1152,10 @@ class Config(object):
                 return []
         if type == "pathlist":
             dp = py.path.local(self.inicfg.config.path).dirpath()
-            l = []
+            values = []
             for relpath in shlex.split(value):
-                l.append(dp.join(relpath, abs=True))
-            return l
+                values.append(dp.join(relpath, abs=True))
+            return values
         elif type == "args":
             return shlex.split(value)
         elif type == "linelist":
@@ -1172,13 +1172,13 @@ class Config(object):
         except KeyError:
             return None
         modpath = py.path.local(mod.__file__).dirpath()
-        l = []
+        values = []
         for relroot in relroots:
             if not isinstance(relroot, py.path.local):
                 relroot = relroot.replace("/", py.path.local.sep)
                 relroot = modpath.join(relroot, abs=True)
-            l.append(relroot)
-        return l
+            values.append(relroot)
+        return values
 
     def _get_override_ini_value(self, name):
         value = None
diff --git a/_pytest/fixtures.py b/_pytest/fixtures.py
index 5dc1aebcc..611799e59 100644
--- a/_pytest/fixtures.py
+++ b/_pytest/fixtures.py
@@ -458,13 +458,13 @@ class FixtureRequest(FuncargnamesCompatAttr):
 
     def _get_fixturestack(self):
         current = self
-        l = []
+        values = []
         while 1:
             fixturedef = getattr(current, "_fixturedef", None)
             if fixturedef is None:
-                l.reverse()
-                return l
-            l.append(fixturedef)
+                values.reverse()
+                return values
+            values.append(fixturedef)
             current = current._parent_request
 
     def _getfixturevalue(self, fixturedef):
@@ -746,7 +746,7 @@ class FixtureDef:
                 try:
                     func = self._finalizer.pop()
                     func()
-                except:
+                except:  # noqa
                     exceptions.append(sys.exc_info())
             if exceptions:
                 e = exceptions[0]
diff --git a/_pytest/main.py b/_pytest/main.py
index a2d61b442..08907175b 100644
--- a/_pytest/main.py
+++ b/_pytest/main.py
@@ -112,7 +112,7 @@ def wrap_session(config, doit):
                     excinfo.typename, excinfo.value.msg))
             config.hook.pytest_keyboard_interrupt(excinfo=excinfo)
             session.exitstatus = EXIT_INTERRUPTED
-        except:
+        except:  # noqa
             excinfo = _pytest._code.ExceptionInfo()
             config.notify_exception(excinfo, config.option)
             session.exitstatus = EXIT_INTERNALERROR
diff --git a/_pytest/mark.py b/_pytest/mark.py
index a5ae0955a..b7d50e05e 100644
--- a/_pytest/mark.py
+++ b/_pytest/mark.py
@@ -296,12 +296,12 @@ class MarkGenerator:
                 return
         except AttributeError:
             pass
-        self._markers = l = set()
+        self._markers = values = set()
         for line in self._config.getini("markers"):
             marker, _ = line.split(":", 1)
             marker = marker.rstrip()
             x = marker.split("(", 1)[0]
-            l.add(x)
+            values.add(x)
         if name not in self._markers:
             raise AttributeError("%r not a registered marker" % (name,))
 
diff --git a/_pytest/pytester.py b/_pytest/pytester.py
index a65e3f027..539b7fdfa 100644
--- a/_pytest/pytester.py
+++ b/_pytest/pytester.py
@@ -174,9 +174,9 @@ class PytestArg:
         return hookrecorder
 
 
-def get_public_names(l):
-    """Only return names from iterator l without a leading underscore."""
-    return [x for x in l if x[0] != "_"]
+def get_public_names(values):
+    """Only return names from iterator values without a leading underscore."""
+    return [x for x in values if x[0] != "_"]
 
 
 class ParsedCall:
@@ -250,9 +250,9 @@ class HookRecorder:
         pytest.fail("\n".join(lines))
 
     def getcall(self, name):
-        l = self.getcalls(name)
-        assert len(l) == 1, (name, l)
-        return l[0]
+        values = self.getcalls(name)
+        assert len(values) == 1, (name, values)
+        return values[0]
 
     # functionality for test reports
 
@@ -263,7 +263,7 @@ class HookRecorder:
     def matchreport(self, inamepart="",
                     names="pytest_runtest_logreport pytest_collectreport", when=None):
         """ return a testreport whose dotted import path matches """
-        l = []
+        values = []
         for rep in self.getreports(names=names):
             try:
                 if not when and rep.when != "call" and rep.passed:
@@ -274,14 +274,14 @@ class HookRecorder:
             if when and getattr(rep, 'when', None) != when:
                 continue
             if not inamepart or inamepart in rep.nodeid.split("::"):
-                l.append(rep)
-        if not l:
+                values.append(rep)
+        if not values:
             raise ValueError("could not find test report matching %r: "
                              "no test reports at all!" % (inamepart,))
-        if len(l) > 1:
+        if len(values) > 1:
             raise ValueError(
-                "found 2 or more testreports matching %r: %s" % (inamepart, l))
-        return l[0]
+                "found 2 or more testreports matching %r: %s" % (inamepart, values))
+        return values[0]
 
     def getfailures(self,
                     names='pytest_runtest_logreport pytest_collectreport'):
@@ -652,8 +652,8 @@ class Testdir:
 
         """
         p = self.makepyfile(source)
-        l = list(cmdlineargs) + [p]
-        return self.inline_run(*l)
+        values = list(cmdlineargs) + [p]
+        return self.inline_run(*values)
 
     def inline_genitems(self, *args):
         """Run ``pytest.main(['--collectonly'])`` in-process.
diff --git a/_pytest/python.py b/_pytest/python.py
index fa83286ba..749024b01 100644
--- a/_pytest/python.py
+++ b/_pytest/python.py
@@ -325,7 +325,7 @@ class PyCollector(PyobjMixin, main.Collector):
         for basecls in inspect.getmro(self.obj.__class__):
             dicts.append(basecls.__dict__)
         seen = {}
-        l = []
+        values = []
         for dic in dicts:
             for name, obj in list(dic.items()):
                 if name in seen:
@@ -336,9 +336,9 @@ class PyCollector(PyobjMixin, main.Collector):
                     continue
                 if not isinstance(res, list):
                     res = [res]
-                l.extend(res)
-        l.sort(key=lambda item: item.reportinfo()[:2])
-        return l
+                values.extend(res)
+        values.sort(key=lambda item: item.reportinfo()[:2])
+        return values
 
     def makeitem(self, name, obj):
         warnings.warn(deprecated.COLLECTOR_MAKEITEM, stacklevel=2)
@@ -600,7 +600,7 @@ class Generator(FunctionMixin, PyCollector):
         self.session._setupstate.prepare(self)
         # see FunctionMixin.setup and test_setupstate_is_preserved_134
         self._preservedparent = self.parent.obj
-        l = []
+        values = []
         seen = {}
         for i, x in enumerate(self.obj()):
             name, call, args = self.getcallargs(x)
@@ -613,9 +613,9 @@ class Generator(FunctionMixin, PyCollector):
             if name in seen:
                 raise ValueError("%r generated tests with non-unique name %r" % (self, name))
             seen[name] = True
-            l.append(self.Function(name, self, args=args, callobj=call))
+            values.append(self.Function(name, self, args=args, callobj=call))
         self.warn('C1', deprecated.YIELD_TESTS)
-        return l
+        return values
 
     def getcallargs(self, obj):
         if not isinstance(obj, (tuple, list)):
diff --git a/_pytest/python_api.py b/_pytest/python_api.py
index bf1cd147e..81960295b 100644
--- a/_pytest/python_api.py
+++ b/_pytest/python_api.py
@@ -85,7 +85,7 @@ class ApproxNumpy(ApproxBase):
 
         try:
             actual = np.asarray(actual)
-        except:
+        except:  # noqa
             raise TypeError("cannot compare '{0}' to numpy.ndarray".format(actual))
 
         if actual.shape != self.expected.shape:
diff --git a/_pytest/runner.py b/_pytest/runner.py
index 98e005323..eda38be0d 100644
--- a/_pytest/runner.py
+++ b/_pytest/runner.py
@@ -197,7 +197,7 @@ class CallInfo:
         except KeyboardInterrupt:
             self.stop = time()
             raise
-        except:
+        except:  # noqa
             self.excinfo = ExceptionInfo()
         self.stop = time()
 
diff --git a/_pytest/skipping.py b/_pytest/skipping.py
index 40dd6cbf5..ab46911e6 100644
--- a/_pytest/skipping.py
+++ b/_pytest/skipping.py
@@ -366,10 +366,10 @@ def folded_skips(skipped):
         if when == 'setup' and 'skip' in keywords and 'pytestmark' not in keywords:
             key = (key[0], None, key[2], )
         d.setdefault(key, []).append(event)
-    l = []
+    values = []
     for key, events in d.items():
-        l.append((len(events),) + key)
-    return l
+        values.append((len(events),) + key)
+    return values
 
 
 def show_skipped(terminalreporter, lines):
diff --git a/_pytest/terminal.py b/_pytest/terminal.py
index cb4823ff3..2b13fe1ea 100644
--- a/_pytest/terminal.py
+++ b/_pytest/terminal.py
@@ -459,9 +459,9 @@ class TerminalReporter:
             line = self.config.cwd_relative_nodeid(nodeid)
             if domain and line.endswith(domain):
                 line = line[:-len(domain)]
-                l = domain.split("[")
-                l[0] = l[0].replace('.', '::')  # don't replace '.' in params
-                line += "[".join(l)
+                values = domain.split("[")
+                values[0] = values[0].replace('.', '::')  # don't replace '.' in params
+                line += "[".join(values)
             return line
         # collect_fspath comes from testid which has a "/"-normalized path
 
@@ -493,11 +493,11 @@ class TerminalReporter:
     # summaries for sessionfinish
     #
     def getreports(self, name):
-        l = []
+        values = []
         for x in self.stats.get(name, []):
             if not hasattr(x, '_pdbshown'):
-                l.append(x)
-        return l
+                values.append(x)
+        return values
 
     def summary_warnings(self):
         if self.hasopt("w"):
@@ -608,8 +608,8 @@ def repr_pythonversion(v=None):
         return str(v)
 
 
-def flatten(l):
-    for x in l:
+def flatten(values):
+    for x in values:
         if isinstance(x, (list, tuple)):
             for y in flatten(x):
                 yield y
@@ -650,7 +650,7 @@ def build_summary_stats_line(stats):
 
 
 def _plugin_nameversions(plugininfo):
-    l = []
+    values = []
     for plugin, dist in plugininfo:
         # gets us name and version!
         name = '{dist.project_name}-{dist.version}'.format(dist=dist)
@@ -659,6 +659,6 @@ def _plugin_nameversions(plugininfo):
             name = name[7:]
         # we decided to print python package names
         # they can have more than one plugin
-        if name not in l:
-            l.append(name)
-    return l
+        if name not in values:
+            values.append(name)
+    return values
diff --git a/_pytest/unittest.py b/_pytest/unittest.py
index 7842d1658..3ddb39495 100644
--- a/_pytest/unittest.py
+++ b/_pytest/unittest.py
@@ -108,13 +108,13 @@ class TestCaseFunction(Function):
         except TypeError:
             try:
                 try:
-                    l = traceback.format_exception(*rawexcinfo)
-                    l.insert(0, "NOTE: Incompatible Exception Representation, "
-                                "displaying natively:\n\n")
-                    fail("".join(l), pytrace=False)
+                    values = traceback.format_exception(*rawexcinfo)
+                    values.insert(0, "NOTE: Incompatible Exception Representation, "
+                                  "displaying natively:\n\n")
+                    fail("".join(values), pytrace=False)
                 except (fail.Exception, KeyboardInterrupt):
                     raise
-                except:
+                except:  # noqa
                     fail("ERROR: Unknown Incompatible Exception "
                          "representation:\n%r" % (rawexcinfo,), pytrace=False)
             except KeyboardInterrupt:
diff --git a/changelog/2893.doc b/changelog/2893.doc
new file mode 100644
index 000000000..a305f1890
--- /dev/null
+++ b/changelog/2893.doc
@@ -0,0 +1 @@
+Clarify language of proposal for fixtures parameters
diff --git a/changelog/2903.doc b/changelog/2903.doc
new file mode 100644
index 000000000..492a8c685
--- /dev/null
+++ b/changelog/2903.doc
@@ -0,0 +1 @@
+List python 3.6 in the documented supported versions in the getting started document.
diff --git a/doc/en/parametrize.rst b/doc/en/parametrize.rst
index ef9161546..ebbae31b2 100644
--- a/doc/en/parametrize.rst
+++ b/doc/en/parametrize.rst
@@ -201,6 +201,9 @@ list::
 Note that when calling ``metafunc.parametrize`` multiple times with different parameter sets, all parameter names across 
 those sets cannot be duplicated, otherwise an error will be raised.
 
+More examples
+-------------
+
 For further examples, you might want to look at :ref:`more
 parametrization examples <paramexamples>`.
 
diff --git a/doc/en/proposals/parametrize_with_fixtures.rst b/doc/en/proposals/parametrize_with_fixtures.rst
index 381bc98f1..146032aa4 100644
--- a/doc/en/proposals/parametrize_with_fixtures.rst
+++ b/doc/en/proposals/parametrize_with_fixtures.rst
@@ -1,8 +1,13 @@
 :orphan:
 
-=========================
-Parametrize with fixtures
-=========================
+===================================
+PROPOSAL: Parametrize with fixtures
+===================================
+
+.. warning::
+
+    This document outlines a proposal around using fixtures as input
+    of parametrized tests or fixtures.
 
 Problem
 -------
@@ -108,8 +113,13 @@ the following values.
 Alternative approach
 --------------------
 
-A new helper function named ``fixture_request`` tells pytest to yield all
-parameters of a fixture.
+A new helper function named ``fixture_request`` would tell pytest to yield
+all parameters marked as a fixture.
+
+.. note::
+
+    The `pytest-lazy-fixture <https://pypi.python.org/pypi/pytest-lazy-fixture>`_ plugin implements a very
+    similar solution to the proposal below, make sure to check it out.
 
 .. code-block:: python
 
diff --git a/testing/code/test_excinfo.py b/testing/code/test_excinfo.py
index 2086748e9..34db8ffa1 100644
--- a/testing/code/test_excinfo.py
+++ b/testing/code/test_excinfo.py
@@ -76,8 +76,8 @@ def test_excinfo_getstatement():
     linenumbers = [_pytest._code.getrawcode(f).co_firstlineno - 1 + 4,
                    _pytest._code.getrawcode(f).co_firstlineno - 1 + 1,
                    _pytest._code.getrawcode(g).co_firstlineno - 1 + 1, ]
-    l = list(excinfo.traceback)
-    foundlinenumbers = [x.lineno for x in l]
+    values = list(excinfo.traceback)
+    foundlinenumbers = [x.lineno for x in values]
     assert foundlinenumbers == linenumbers
     # for x in info:
     #    print "%s:%d  %s" %(x.path.relto(root), x.lineno, x.statement)
@@ -243,7 +243,7 @@ class TestTraceback_f_g_h(object):
         def f(n):
             try:
                 do_stuff()
-            except:
+            except:  # noqa
                 reraise_me()
 
         excinfo = pytest.raises(RuntimeError, f, 8)
@@ -430,7 +430,7 @@ class TestFormattedExcinfo(object):
             exec(source.compile())
         except KeyboardInterrupt:
             raise
-        except:
+        except:  # noqa
             return _pytest._code.ExceptionInfo()
         assert 0, "did not raise"
 
@@ -1213,7 +1213,7 @@ def test_exception_repr_extraction_error_on_recursion():
 
     try:
         a(numpy_like())
-    except:
+    except:  # noqa
         from _pytest._code.code import ExceptionInfo
         from _pytest.pytester import LineMatcher
         exc_info = ExceptionInfo()
@@ -1237,7 +1237,7 @@ def test_no_recursion_index_on_recursion_error():
                 return getattr(self, '_' + attr)
 
         RecursionDepthError().trigger
-    except:
+    except:  # noqa
         from _pytest._code.code import ExceptionInfo
         exc_info = ExceptionInfo()
         assert 'maximum recursion' in str(exc_info.getrepr())
diff --git a/testing/code/test_source.py b/testing/code/test_source.py
index ed45f0896..8eda68a6e 100644
--- a/testing/code/test_source.py
+++ b/testing/code/test_source.py
@@ -155,8 +155,8 @@ class TestAccesses(object):
         assert len(self.source) == 4
 
     def test_iter(self):
-        l = [x for x in self.source]
-        assert len(l) == 4
+        values = [x for x in self.source]
+        assert len(values) == 4
 
 
 class TestSourceParsingAndCompiling(object):
@@ -329,8 +329,8 @@ def test_getstartingblock_singleline():
 
     x = A('x', 'y')
 
-    l = [i for i in x.source.lines if i.strip()]
-    assert len(l) == 1
+    values = [i for i in x.source.lines if i.strip()]
+    assert len(values) == 1
 
 
 def test_getline_finally():
diff --git a/testing/code/test_source_multiline_block.py b/testing/code/test_source_multiline_block.py
index 4e8735d0c..b356d191f 100644
--- a/testing/code/test_source_multiline_block.py
+++ b/testing/code/test_source_multiline_block.py
@@ -22,5 +22,5 @@ def test_getstartingblock_multiline():
           ,
           'z')
 
-    l = [i for i in x.source.lines if i.strip()]
-    assert len(l) == 4
+    values = [i for i in x.source.lines if i.strip()]
+    assert len(values) == 4
diff --git a/testing/python/collect.py b/testing/python/collect.py
index c3a204568..16c2154b8 100644
--- a/testing/python/collect.py
+++ b/testing/python/collect.py
@@ -868,11 +868,11 @@ class TestConftestCustomization(object):
 
     def test_makeitem_non_underscore(self, testdir, monkeypatch):
         modcol = testdir.getmodulecol("def _hello(): pass")
-        l = []
+        values = []
         monkeypatch.setattr(pytest.Module, 'makeitem',
-                            lambda self, name, obj: l.append(name))
-        l = modcol.collect()
-        assert '_hello' not in l
+                            lambda self, name, obj: values.append(name))
+        values = modcol.collect()
+        assert '_hello' not in values
 
     def test_issue2369_collect_module_fileext(self, testdir):
         """Ensure we can collect files with weird file extensions as Python
diff --git a/testing/python/fixture.py b/testing/python/fixture.py
index 184a80374..1ab4feae7 100644
--- a/testing/python/fixture.py
+++ b/testing/python/fixture.py
@@ -544,12 +544,12 @@ class TestRequestBasic(object):
     def test_getfixturevalue(self, testdir, getfixmethod):
         item = testdir.getitem("""
             import pytest
-            l = [2]
+            values = [2]
             @pytest.fixture
             def something(request): return 1
             @pytest.fixture
             def other(request):
-                return l.pop()
+                return values.pop()
             def test_func(something): pass
         """)
         import contextlib
@@ -618,15 +618,15 @@ class TestRequestBasic(object):
     def test_request_addfinalizer_failing_setup(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = [1]
+            values = [1]
             @pytest.fixture
             def myfix(request):
-                request.addfinalizer(l.pop)
+                request.addfinalizer(values.pop)
                 assert 0
             def test_fix(myfix):
                 pass
             def test_finalizer_ran():
-                assert not l
+                assert not values
         """)
         reprec = testdir.inline_run("-s")
         reprec.assertoutcome(failed=1, passed=1)
@@ -634,30 +634,30 @@ class TestRequestBasic(object):
     def test_request_addfinalizer_failing_setup_module(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = [1, 2]
+            values = [1, 2]
             @pytest.fixture(scope="module")
             def myfix(request):
-                request.addfinalizer(l.pop)
-                request.addfinalizer(l.pop)
+                request.addfinalizer(values.pop)
+                request.addfinalizer(values.pop)
                 assert 0
             def test_fix(myfix):
                 pass
         """)
         reprec = testdir.inline_run("-s")
         mod = reprec.getcalls("pytest_runtest_setup")[0].item.module
-        assert not mod.l
+        assert not mod.values
 
     def test_request_addfinalizer_partial_setup_failure(self, testdir):
         p = testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture
             def something(request):
-                request.addfinalizer(lambda: l.append(None))
+                request.addfinalizer(lambda: values.append(None))
             def test_func(something, missingarg):
                 pass
             def test_second():
-                assert len(l) == 1
+                assert len(values) == 1
         """)
         result = testdir.runpytest(p)
         result.stdout.fnmatch_lines([
@@ -671,7 +671,7 @@ class TestRequestBasic(object):
         """
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             def _excepts(where):
                 raise Exception('Error in %s fixture' % where)
             @pytest.fixture
@@ -679,17 +679,17 @@ class TestRequestBasic(object):
                 return request
             @pytest.fixture
             def something(subrequest):
-                subrequest.addfinalizer(lambda: l.append(1))
-                subrequest.addfinalizer(lambda: l.append(2))
+                subrequest.addfinalizer(lambda: values.append(1))
+                subrequest.addfinalizer(lambda: values.append(2))
                 subrequest.addfinalizer(lambda: _excepts('something'))
             @pytest.fixture
             def excepts(subrequest):
                 subrequest.addfinalizer(lambda: _excepts('excepts'))
-                subrequest.addfinalizer(lambda: l.append(3))
+                subrequest.addfinalizer(lambda: values.append(3))
             def test_first(something, excepts):
                 pass
             def test_second():
-                assert l == [3, 2, 1]
+                assert values == [3, 2, 1]
         """)
         result = testdir.runpytest()
         result.stdout.fnmatch_lines([
@@ -744,13 +744,13 @@ class TestRequestBasic(object):
     def test_setupdecorator_and_xunit(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope='module', autouse=True)
             def setup_module():
-                l.append("module")
+                values.append("module")
             @pytest.fixture(autouse=True)
             def setup_function():
-                l.append("function")
+                values.append("function")
 
             def test_func():
                 pass
@@ -758,14 +758,14 @@ class TestRequestBasic(object):
             class TestClass(object):
                 @pytest.fixture(scope="class", autouse=True)
                 def setup_class(self):
-                    l.append("class")
+                    values.append("class")
                 @pytest.fixture(autouse=True)
                 def setup_method(self):
-                    l.append("method")
+                    values.append("method")
                 def test_method(self):
                     pass
             def test_all():
-                assert l == ["module", "function", "class",
+                assert values == ["module", "function", "class",
                              "function", "method", "function"]
         """)
         reprec = testdir.inline_run("-v")
@@ -926,10 +926,10 @@ class TestRequestCachedSetup(object):
     def test_request_cachedsetup_extrakey(self, testdir):
         item1 = testdir.getitem("def test_func(): pass")
         req1 = fixtures.FixtureRequest(item1)
-        l = ["hello", "world"]
+        values = ["hello", "world"]
 
         def setup():
-            return l.pop()
+            return values.pop()
 
         ret1 = req1.cached_setup(setup, extrakey=1)
         ret2 = req1.cached_setup(setup, extrakey=2)
@@ -943,24 +943,24 @@ class TestRequestCachedSetup(object):
     def test_request_cachedsetup_cache_deletion(self, testdir):
         item1 = testdir.getitem("def test_func(): pass")
         req1 = fixtures.FixtureRequest(item1)
-        l = []
+        values = []
 
         def setup():
-            l.append("setup")
+            values.append("setup")
 
         def teardown(val):
-            l.append("teardown")
+            values.append("teardown")
 
         req1.cached_setup(setup, teardown, scope="function")
-        assert l == ['setup']
+        assert values == ['setup']
         # artificial call of finalizer
         setupstate = req1._pyfuncitem.session._setupstate
         setupstate._callfinalizers(item1)
-        assert l == ["setup", "teardown"]
+        assert values == ["setup", "teardown"]
         req1.cached_setup(setup, teardown, scope="function")
-        assert l == ["setup", "teardown", "setup"]
+        assert values == ["setup", "teardown", "setup"]
         setupstate._callfinalizers(item1)
-        assert l == ["setup", "teardown", "setup", "teardown"]
+        assert values == ["setup", "teardown", "setup", "teardown"]
 
     def test_request_cached_setup_two_args(self, testdir):
         testdir.makepyfile("""
@@ -1002,17 +1002,17 @@ class TestRequestCachedSetup(object):
     def test_request_cached_setup_functional(self, testdir):
         testdir.makepyfile(test_0="""
             import pytest
-            l = []
+            values = []
             @pytest.fixture
             def something(request):
                 val = request.cached_setup(fsetup, fteardown)
                 return val
             def fsetup(mycache=[1]):
-                l.append(mycache.pop())
-                return l
+                values.append(mycache.pop())
+                return values
             def fteardown(something):
-                l.remove(something[0])
-                l.append(2)
+                values.remove(something[0])
+                values.append(2)
             def test_list_once(something):
                 assert something == [1]
             def test_list_twice(something):
@@ -1021,7 +1021,7 @@ class TestRequestCachedSetup(object):
         testdir.makepyfile(test_1="""
             import test_0 # should have run already
             def test_check_test0_has_teardown_correct():
-                assert test_0.l == [2]
+                assert test_0.values == [2]
         """)
         result = testdir.runpytest("-v")
         result.stdout.fnmatch_lines([
@@ -1146,10 +1146,10 @@ class TestFixtureUsages(object):
     def test_funcarg_parametrized_and_used_twice(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(params=[1,2])
             def arg1(request):
-                l.append(1)
+                values.append(1)
                 return request.param
 
             @pytest.fixture()
@@ -1158,7 +1158,7 @@ class TestFixtureUsages(object):
 
             def test_add(arg1, arg2):
                 assert arg2 == arg1 + 1
-                assert len(l) == arg1
+                assert len(values) == arg1
         """)
         result = testdir.runpytest()
         result.stdout.fnmatch_lines([
@@ -1199,8 +1199,8 @@ class TestFixtureUsages(object):
 
         """)
         reprec = testdir.inline_run()
-        l = reprec.getfailedcollections()
-        assert len(l) == 1
+        values = reprec.getfailedcollections()
+        assert len(values) == 1
 
     def test_request_can_be_overridden(self, testdir):
         testdir.makepyfile("""
@@ -1219,20 +1219,20 @@ class TestFixtureUsages(object):
         testdir.makepyfile("""
             import pytest
 
-            l = []
+            values = []
 
             @pytest.fixture(scope="class")
             def myfix(request):
                 request.cls.hello = "world"
-                l.append(1)
+                values.append(1)
 
             class TestClass(object):
                 def test_one(self):
                     assert self.hello == "world"
-                    assert len(l) == 1
+                    assert len(values) == 1
                 def test_two(self):
                     assert self.hello == "world"
-                    assert len(l) == 1
+                    assert len(values) == 1
             pytest.mark.usefixtures("myfix")(TestClass)
         """)
         reprec = testdir.inline_run()
@@ -1286,7 +1286,7 @@ class TestFixtureUsages(object):
         testdir.makepyfile("""
             import pytest
 
-            l = []
+            values = []
             def f():
                 yield 1
                 yield 2
@@ -1300,14 +1300,14 @@ class TestFixtureUsages(object):
                 return request.param
 
             def test_1(arg):
-                l.append(arg)
+                values.append(arg)
             def test_2(arg2):
-                l.append(arg2*10)
+                values.append(arg2*10)
         """)
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=4)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
-        assert l == [1, 2, 10, 20]
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
+        assert values == [1, 2, 10, 20]
 
 
 class TestFixtureManagerParseFactories(object):
@@ -1457,19 +1457,19 @@ class TestAutouseDiscovery(object):
         testdir.makepyfile("""
             import pytest
             class TestA(object):
-                l = []
+                values = []
                 @pytest.fixture(autouse=True)
                 def setup1(self):
-                    self.l.append(1)
+                    self.values.append(1)
                 def test_setup1(self):
-                    assert self.l == [1]
+                    assert self.values == [1]
             class TestB(object):
-                l = []
+                values = []
                 @pytest.fixture(autouse=True)
                 def setup2(self):
-                    self.l.append(1)
+                    self.values.append(1)
                 def test_setup2(self):
-                    assert self.l == [1]
+                    assert self.values == [1]
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=2)
@@ -1552,22 +1552,22 @@ class TestAutouseDiscovery(object):
     def test_autouse_in_module_and_two_classes(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(autouse=True)
             def append1():
-                l.append("module")
+                values.append("module")
             def test_x():
-                assert l == ["module"]
+                assert values == ["module"]
 
             class TestA(object):
                 @pytest.fixture(autouse=True)
                 def append2(self):
-                    l.append("A")
+                    values.append("A")
                 def test_hello(self):
-                    assert l == ["module", "module", "A"], l
+                    assert values == ["module", "module", "A"], values
             class TestA2(object):
                 def test_world(self):
-                    assert l == ["module", "module", "A", "module"], l
+                    assert values == ["module", "module", "A", "module"], values
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=3)
@@ -1611,23 +1611,23 @@ class TestAutouseManagement(object):
     def test_funcarg_and_setup(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope="module")
             def arg():
-                l.append(1)
+                values.append(1)
                 return 0
             @pytest.fixture(scope="module", autouse=True)
             def something(arg):
-                l.append(2)
+                values.append(2)
 
             def test_hello(arg):
-                assert len(l) == 2
-                assert l == [1,2]
+                assert len(values) == 2
+                assert values == [1,2]
                 assert arg == 0
 
             def test_hello2(arg):
-                assert len(l) == 2
-                assert l == [1,2]
+                assert len(values) == 2
+                assert values == [1,2]
                 assert arg == 0
         """)
         reprec = testdir.inline_run()
@@ -1636,20 +1636,20 @@ class TestAutouseManagement(object):
     def test_uses_parametrized_resource(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(params=[1,2])
             def arg(request):
                 return request.param
 
             @pytest.fixture(autouse=True)
             def something(arg):
-                l.append(arg)
+                values.append(arg)
 
             def test_hello():
-                if len(l) == 1:
-                    assert l == [1]
-                elif len(l) == 2:
-                    assert l == [1, 2]
+                if len(values) == 1:
+                    assert values == [1]
+                elif len(values) == 2:
+                    assert values == [1, 2]
                 else:
                     0/0
 
@@ -1661,7 +1661,7 @@ class TestAutouseManagement(object):
         testdir.makepyfile("""
             import pytest
 
-            l = []
+            values = []
 
             @pytest.fixture(scope="session", params=[1,2])
             def arg(request):
@@ -1670,14 +1670,14 @@ class TestAutouseManagement(object):
             @pytest.fixture(scope="function", autouse=True)
             def append(request, arg):
                 if request.function.__name__ == "test_some":
-                    l.append(arg)
+                    values.append(arg)
 
             def test_some():
                 pass
 
             def test_result(arg):
-                assert len(l) == arg
-                assert l[:arg] == [1,2][:arg]
+                assert len(values) == arg
+                assert values[:arg] == [1,2][:arg]
         """)
         reprec = testdir.inline_run("-v", "-s")
         reprec.assertoutcome(passed=4)
@@ -1687,7 +1687,7 @@ class TestAutouseManagement(object):
             import pytest
             import pprint
 
-            l = []
+            values = []
 
             @pytest.fixture(scope="function", params=[1,2])
             def farg(request):
@@ -1700,7 +1700,7 @@ class TestAutouseManagement(object):
             @pytest.fixture(scope="function", autouse=True)
             def append(request, farg, carg):
                 def fin():
-                    l.append("fin_%s%s" % (carg, farg))
+                    values.append("fin_%s%s" % (carg, farg))
                 request.addfinalizer(fin)
         """)
         testdir.makepyfile("""
@@ -1717,26 +1717,26 @@ class TestAutouseManagement(object):
         reprec = testdir.inline_run("-v", "-s", confcut)
         reprec.assertoutcome(passed=8)
         config = reprec.getcalls("pytest_unconfigure")[0].config
-        l = config.pluginmanager._getconftestmodules(p)[0].l
-        assert l == ["fin_a1", "fin_a2", "fin_b1", "fin_b2"] * 2
+        values = config.pluginmanager._getconftestmodules(p)[0].values
+        assert values == ["fin_a1", "fin_a2", "fin_b1", "fin_b2"] * 2
 
     def test_scope_ordering(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope="function", autouse=True)
             def fappend2():
-                l.append(2)
+                values.append(2)
             @pytest.fixture(scope="class", autouse=True)
             def classappend3():
-                l.append(3)
+                values.append(3)
             @pytest.fixture(scope="module", autouse=True)
             def mappend():
-                l.append(1)
+                values.append(1)
 
             class TestHallo(object):
                 def test_method(self):
-                    assert l == [1,3,2]
+                    assert values == [1,3,2]
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=1)
@@ -1744,23 +1744,23 @@ class TestAutouseManagement(object):
     def test_parametrization_setup_teardown_ordering(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             def pytest_generate_tests(metafunc):
                 if metafunc.cls is not None:
                     metafunc.parametrize("item", [1,2], scope="class")
             class TestClass(object):
                 @pytest.fixture(scope="class", autouse=True)
                 def addteardown(self, item, request):
-                    l.append("setup-%d" % item)
-                    request.addfinalizer(lambda: l.append("teardown-%d" % item))
+                    values.append("setup-%d" % item)
+                    request.addfinalizer(lambda: values.append("teardown-%d" % item))
                 def test_step1(self, item):
-                    l.append("step1-%d" % item)
+                    values.append("step1-%d" % item)
                 def test_step2(self, item):
-                    l.append("step2-%d" % item)
+                    values.append("step2-%d" % item)
 
             def test_finish():
-                print (l)
-                assert l == ["setup-1", "step1-1", "step2-1", "teardown-1",
+                print (values)
+                assert values == ["setup-1", "step1-1", "step2-1", "teardown-1",
                              "setup-2", "step1-2", "step2-2", "teardown-2",]
         """)
         reprec = testdir.inline_run()
@@ -1770,15 +1770,15 @@ class TestAutouseManagement(object):
         testdir.makepyfile("""
             import pytest
 
-            l = []
+            values = []
             @pytest.fixture(autouse=True)
             def fix1():
-                l.append(1)
+                values.append(1)
             @pytest.fixture()
             def arg1():
-                l.append(2)
+                values.append(2)
             def test_hello(arg1):
-                assert l == [1,2]
+                assert values == [1,2]
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=1)
@@ -1789,20 +1789,20 @@ class TestAutouseManagement(object):
     def test_ordering_dependencies_torndown_first(self, testdir, param1, param2):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(%(param1)s)
             def arg1(request):
-                request.addfinalizer(lambda: l.append("fin1"))
-                l.append("new1")
+                request.addfinalizer(lambda: values.append("fin1"))
+                values.append("new1")
             @pytest.fixture(%(param2)s)
             def arg2(request, arg1):
-                request.addfinalizer(lambda: l.append("fin2"))
-                l.append("new2")
+                request.addfinalizer(lambda: values.append("fin2"))
+                values.append("new2")
 
             def test_arg(arg2):
                 pass
             def test_check():
-                assert l == ["new1", "new2", "fin2", "fin1"]
+                assert values == ["new1", "new2", "fin2", "fin1"]
         """ % locals())
         reprec = testdir.inline_run("-s")
         reprec.assertoutcome(passed=2)
@@ -1815,11 +1815,11 @@ class TestFixtureMarker(object):
             @pytest.fixture(params=["a", "b", "c"])
             def arg(request):
                 return request.param
-            l = []
+            values = []
             def test_param(arg):
-                l.append(arg)
+                values.append(arg)
             def test_result():
-                assert l == list("abc")
+                assert values == list("abc")
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=4)
@@ -1863,21 +1863,21 @@ class TestFixtureMarker(object):
     def test_scope_session(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope="module")
             def arg():
-                l.append(1)
+                values.append(1)
                 return 1
 
             def test_1(arg):
                 assert arg == 1
             def test_2(arg):
                 assert arg == 1
-                assert len(l) == 1
+                assert len(values) == 1
             class TestClass(object):
                 def test3(self, arg):
                     assert arg == 1
-                    assert len(l) == 1
+                    assert len(values) == 1
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=3)
@@ -1885,10 +1885,10 @@ class TestFixtureMarker(object):
     def test_scope_session_exc(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope="session")
             def fix():
-                l.append(1)
+                values.append(1)
                 pytest.skip('skipping')
 
             def test_1(fix):
@@ -1896,7 +1896,7 @@ class TestFixtureMarker(object):
             def test_2(fix):
                 pass
             def test_last():
-                assert l == [1]
+                assert values == [1]
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(skipped=2, passed=1)
@@ -1904,11 +1904,11 @@ class TestFixtureMarker(object):
     def test_scope_session_exc_two_fix(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             m = []
             @pytest.fixture(scope="session")
             def a():
-                l.append(1)
+                values.append(1)
                 pytest.skip('skipping')
             @pytest.fixture(scope="session")
             def b(a):
@@ -1919,7 +1919,7 @@ class TestFixtureMarker(object):
             def test_2(b):
                 pass
             def test_last():
-                assert l == [1]
+                assert values == [1]
                 assert m == []
         """)
         reprec = testdir.inline_run()
@@ -1957,21 +1957,21 @@ class TestFixtureMarker(object):
     def test_scope_module_uses_session(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(scope="module")
             def arg():
-                l.append(1)
+                values.append(1)
                 return 1
 
             def test_1(arg):
                 assert arg == 1
             def test_2(arg):
                 assert arg == 1
-                assert len(l) == 1
+                assert len(values) == 1
             class TestClass(object):
                 def test3(self, arg):
                     assert arg == 1
-                    assert len(l) == 1
+                    assert len(values) == 1
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=3)
@@ -2066,17 +2066,17 @@ class TestFixtureMarker(object):
             @pytest.fixture(scope="module", params=["a", "b", "c"])
             def arg(request):
                 return request.param
-            l = []
+            values = []
             def test_param(arg):
-                l.append(arg)
+                values.append(arg)
         """)
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=3)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
-        assert len(l) == 3
-        assert "a" in l
-        assert "b" in l
-        assert "c" in l
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
+        assert len(values) == 3
+        assert "a" in values
+        assert "b" in values
+        assert "c" in values
 
     def test_scope_mismatch(self, testdir):
         testdir.makeconftest("""
@@ -2107,16 +2107,16 @@ class TestFixtureMarker(object):
             def arg(request):
                 return request.param
 
-            l = []
+            values = []
             def test_1(arg):
-                l.append(arg)
+                values.append(arg)
             def test_2(arg):
-                l.append(arg)
+                values.append(arg)
         """)
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=4)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
-        assert l == [1, 1, 2, 2]
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
+        assert values == [1, 1, 2, 2]
 
     def test_module_parametrized_ordering(self, testdir):
         testdir.makeconftest("""
@@ -2168,7 +2168,7 @@ class TestFixtureMarker(object):
         testdir.makeconftest("""
             import pytest
 
-            l = []
+            values = []
 
             @pytest.fixture(scope="function", params=[1,2])
             def farg(request):
@@ -2181,7 +2181,7 @@ class TestFixtureMarker(object):
             @pytest.fixture(scope="function", autouse=True)
             def append(request, farg, carg):
                 def fin():
-                    l.append("fin_%s%s" % (carg, farg))
+                    values.append("fin_%s%s" % (carg, farg))
                 request.addfinalizer(fin)
         """)
         testdir.makepyfile("""
@@ -2219,30 +2219,30 @@ class TestFixtureMarker(object):
             @pytest.fixture(scope="function", params=[1, 2])
             def arg(request):
                 param = request.param
-                request.addfinalizer(lambda: l.append("fin:%s" % param))
-                l.append("create:%s" % param)
+                request.addfinalizer(lambda: values.append("fin:%s" % param))
+                values.append("create:%s" % param)
                 return request.param
 
             @pytest.fixture(scope="module", params=["mod1", "mod2"])
             def modarg(request):
                 param = request.param
-                request.addfinalizer(lambda: l.append("fin:%s" % param))
-                l.append("create:%s" % param)
+                request.addfinalizer(lambda: values.append("fin:%s" % param))
+                values.append("create:%s" % param)
                 return request.param
 
-            l = []
+            values = []
             def test_1(arg):
-                l.append("test1")
+                values.append("test1")
             def test_2(modarg):
-                l.append("test2")
+                values.append("test2")
             def test_3(arg, modarg):
-                l.append("test3")
+                values.append("test3")
             def test_4(modarg, arg):
-                l.append("test4")
+                values.append("test4")
         """)
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=12)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
         expected = [
             'create:1', 'test1', 'fin:1', 'create:2', 'test1',
             'fin:2', 'create:mod1', 'test2', 'create:1', 'test3',
@@ -2253,8 +2253,8 @@ class TestFixtureMarker(object):
             'test4', 'fin:1', 'create:2', 'test4', 'fin:2',
             'fin:mod2']
         import pprint
-        pprint.pprint(list(zip(l, expected)))
-        assert l == expected
+        pprint.pprint(list(zip(values, expected)))
+        assert values == expected
 
     def test_parametrized_fixture_teardown_order(self, testdir):
         testdir.makepyfile("""
@@ -2263,29 +2263,29 @@ class TestFixtureMarker(object):
             def param1(request):
                 return request.param
 
-            l = []
+            values = []
 
             class TestClass(object):
                 @classmethod
                 @pytest.fixture(scope="class", autouse=True)
                 def setup1(self, request, param1):
-                    l.append(1)
+                    values.append(1)
                     request.addfinalizer(self.teardown1)
                 @classmethod
                 def teardown1(self):
-                    assert l.pop() == 1
+                    assert values.pop() == 1
                 @pytest.fixture(scope="class", autouse=True)
                 def setup2(self, request, param1):
-                    l.append(2)
+                    values.append(2)
                     request.addfinalizer(self.teardown2)
                 @classmethod
                 def teardown2(self):
-                    assert l.pop() == 2
+                    assert values.pop() == 2
                 def test(self):
                     pass
 
             def test_finish():
-                assert not l
+                assert not values
         """)
         result = testdir.runpytest("-v")
         result.stdout.fnmatch_lines("""
@@ -2350,42 +2350,42 @@ class TestFixtureMarker(object):
     def test_request_is_clean(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(params=[1, 2])
             def fix(request):
-                request.addfinalizer(lambda: l.append(request.param))
+                request.addfinalizer(lambda: values.append(request.param))
             def test_fix(fix):
                 pass
         """)
         reprec = testdir.inline_run("-s")
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
-        assert l == [1, 2]
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
+        assert values == [1, 2]
 
     def test_parametrize_separated_lifecycle(self, testdir):
         testdir.makepyfile("""
             import pytest
 
-            l = []
+            values = []
             @pytest.fixture(scope="module", params=[1, 2])
             def arg(request):
                 x = request.param
-                request.addfinalizer(lambda: l.append("fin%s" % x))
+                request.addfinalizer(lambda: values.append("fin%s" % x))
                 return request.param
             def test_1(arg):
-                l.append(arg)
+                values.append(arg)
             def test_2(arg):
-                l.append(arg)
+                values.append(arg)
         """)
         reprec = testdir.inline_run("-vs")
         reprec.assertoutcome(passed=4)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
         import pprint
-        pprint.pprint(l)
-        # assert len(l) == 6
-        assert l[0] == l[1] == 1
-        assert l[2] == "fin1"
-        assert l[3] == l[4] == 2
-        assert l[5] == "fin2"
+        pprint.pprint(values)
+        # assert len(values) == 6
+        assert values[0] == values[1] == 1
+        assert values[2] == "fin1"
+        assert values[3] == values[4] == 2
+        assert values[5] == "fin2"
 
     def test_parametrize_function_scoped_finalizers_called(self, testdir):
         testdir.makepyfile("""
@@ -2394,17 +2394,17 @@ class TestFixtureMarker(object):
             @pytest.fixture(scope="function", params=[1, 2])
             def arg(request):
                 x = request.param
-                request.addfinalizer(lambda: l.append("fin%s" % x))
+                request.addfinalizer(lambda: values.append("fin%s" % x))
                 return request.param
 
-            l = []
+            values = []
             def test_1(arg):
-                l.append(arg)
+                values.append(arg)
             def test_2(arg):
-                l.append(arg)
+                values.append(arg)
             def test_3():
-                assert len(l) == 8
-                assert l == [1, "fin1", 2, "fin2", 1, "fin1", 2, "fin2"]
+                assert len(values) == 8
+                assert values == [1, "fin1", 2, "fin2", 1, "fin1", 2, "fin2"]
         """)
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=5)
@@ -2414,7 +2414,7 @@ class TestFixtureMarker(object):
     def test_finalizer_order_on_parametrization(self, scope, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
 
             @pytest.fixture(scope=%(scope)r, params=["1"])
             def fix1(request):
@@ -2423,13 +2423,13 @@ class TestFixtureMarker(object):
             @pytest.fixture(scope=%(scope)r)
             def fix2(request, base):
                 def cleanup_fix2():
-                    assert not l, "base should not have been finalized"
+                    assert not values, "base should not have been finalized"
                 request.addfinalizer(cleanup_fix2)
 
             @pytest.fixture(scope=%(scope)r)
             def base(request, fix1):
                 def cleanup_base():
-                    l.append("fin_base")
+                    values.append("fin_base")
                     print ("finalizing base")
                 request.addfinalizer(cleanup_base)
 
@@ -2447,29 +2447,29 @@ class TestFixtureMarker(object):
     def test_class_scope_parametrization_ordering(self, testdir):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             @pytest.fixture(params=["John", "Doe"], scope="class")
             def human(request):
-                request.addfinalizer(lambda: l.append("fin %s" % request.param))
+                request.addfinalizer(lambda: values.append("fin %s" % request.param))
                 return request.param
 
             class TestGreetings(object):
                 def test_hello(self, human):
-                    l.append("test_hello")
+                    values.append("test_hello")
 
             class TestMetrics(object):
                 def test_name(self, human):
-                    l.append("test_name")
+                    values.append("test_name")
 
                 def test_population(self, human):
-                    l.append("test_population")
+                    values.append("test_population")
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=6)
-        l = reprec.getcalls("pytest_runtest_call")[0].item.module.l
-        assert l == ["test_hello", "fin John", "test_hello", "fin Doe",
-                     "test_name", "test_population", "fin John",
-                     "test_name", "test_population", "fin Doe"]
+        values = reprec.getcalls("pytest_runtest_call")[0].item.module.values
+        assert values == ["test_hello", "fin John", "test_hello", "fin Doe",
+                          "test_name", "test_population", "fin John",
+                          "test_name", "test_population", "fin Doe"]
 
     def test_parametrize_setup_function(self, testdir):
         testdir.makepyfile("""
@@ -2481,21 +2481,21 @@ class TestFixtureMarker(object):
 
             @pytest.fixture(scope="module", autouse=True)
             def mysetup(request, arg):
-                request.addfinalizer(lambda: l.append("fin%s" % arg))
-                l.append("setup%s" % arg)
+                request.addfinalizer(lambda: values.append("fin%s" % arg))
+                values.append("setup%s" % arg)
 
-            l = []
+            values = []
             def test_1(arg):
-                l.append(arg)
+                values.append(arg)
             def test_2(arg):
-                l.append(arg)
+                values.append(arg)
             def test_3():
                 import pprint
-                pprint.pprint(l)
+                pprint.pprint(values)
                 if arg == 1:
-                    assert l == ["setup1", 1, 1, ]
+                    assert values == ["setup1", 1, 1, ]
                 elif arg == 2:
-                    assert l == ["setup1", 1, 1, "fin1",
+                    assert values == ["setup1", 1, 1, "fin1",
                                  "setup2", 2, 2, ]
 
         """)
@@ -2656,13 +2656,13 @@ class TestErrors(object):
                 request.addfinalizer(f)
                 return object()
 
-            l = []
+            values = []
             def test_1(fix1):
-                l.append(fix1)
+                values.append(fix1)
             def test_2(fix1):
-                l.append(fix1)
+                values.append(fix1)
             def test_3():
-                assert l[0] != l[1]
+                assert values[0] != values[1]
         """)
         result = testdir.runpytest()
         result.stdout.fnmatch_lines("""
diff --git a/testing/python/integration.py b/testing/python/integration.py
index 1a98eae2a..6ea29fa98 100644
--- a/testing/python/integration.py
+++ b/testing/python/integration.py
@@ -93,8 +93,8 @@ class TestMockDecoration(object):
         def f(x):
             pass
 
-        l = getfuncargnames(f)
-        assert l == ("x",)
+        values = getfuncargnames(f)
+        assert values == ("x",)
 
     def test_wrapped_getfuncargnames_patching(self):
         from _pytest.compat import getfuncargnames
@@ -110,8 +110,8 @@ class TestMockDecoration(object):
         def f(x, y, z):
             pass
 
-        l = getfuncargnames(f)
-        assert l == ("y", "z")
+        values = getfuncargnames(f)
+        assert values == ("y", "z")
 
     def test_unittest_mock(self, testdir):
         pytest.importorskip("unittest.mock")
diff --git a/testing/python/metafunc.py b/testing/python/metafunc.py
index cf3bea7be..a8b6d685b 100644
--- a/testing/python/metafunc.py
+++ b/testing/python/metafunc.py
@@ -1071,21 +1071,21 @@ class TestMetafuncFunctional(object):
     def test_parametrize_scope_overrides(self, testdir, scope, length):
         testdir.makepyfile("""
             import pytest
-            l = []
+            values = []
             def pytest_generate_tests(metafunc):
                 if "arg" in metafunc.funcargnames:
                     metafunc.parametrize("arg", [1,2], indirect=True,
                                          scope=%r)
             @pytest.fixture
             def arg(request):
-                l.append(request.param)
+                values.append(request.param)
                 return request.param
             def test_hello(arg):
                 assert arg in (1,2)
             def test_world(arg):
                 assert arg in (1,2)
             def test_checklength():
-                assert len(l) == %d
+                assert len(values) == %d
         """ % (scope, length))
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=5)
diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index a5174cc8c..4cd050d8c 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -229,9 +229,9 @@ class TestImportHookInstallation(object):
                     return pkg.helper.tool
             """,
             'pkg/other.py': """
-                l = [3, 2]
+                values = [3, 2]
                 def tool():
-                    assert l.pop() == 3
+                    assert values.pop() == 3
             """,
             'conftest.py': """
                 pytest_plugins = ['pkg.plugin']
@@ -248,7 +248,7 @@ class TestImportHookInstallation(object):
         result = testdir.runpytest_subprocess('--assert=rewrite')
         result.stdout.fnmatch_lines(['>*assert a == b*',
                                      'E*assert 2 == 3*',
-                                     '>*assert l.pop() == 3*',
+                                     '>*assert values.pop() == 3*',
                                      'E*AssertionError'])
 
     def test_register_assert_rewrite_checks_types(self):
@@ -263,13 +263,13 @@ class TestBinReprIntegration(object):
     def test_pytest_assertrepr_compare_called(self, testdir):
         testdir.makeconftest("""
             import pytest
-            l = []
+            values = []
             def pytest_assertrepr_compare(op, left, right):
-                l.append((op, left, right))
+                values.append((op, left, right))
 
             @pytest.fixture
             def list(request):
-                return l
+                return values
         """)
         testdir.makepyfile("""
             def test_hello():
diff --git a/testing/test_assertrewrite.py b/testing/test_assertrewrite.py
index 467f231a6..0e22c6dac 100644
--- a/testing/test_assertrewrite.py
+++ b/testing/test_assertrewrite.py
@@ -473,8 +473,8 @@ class TestAssertionRewrite(object):
     def test_len(self):
 
         def f():
-            l = list(range(10))
-            assert len(l) == 11
+            values = list(range(10))
+            assert len(values) == 11
 
         assert getmsg(f).startswith("""assert 10 == 11
  +  where 10 = len([""")
diff --git a/testing/test_collection.py b/testing/test_collection.py
index 016c3e61b..563ed0439 100644
--- a/testing/test_collection.py
+++ b/testing/test_collection.py
@@ -704,9 +704,9 @@ class TestNodekeywords(object):
             def test_pass(): pass
             def test_fail(): assert 0
         """)
-        l = list(modcol.keywords)
-        assert modcol.name in l
-        for x in l:
+        values = list(modcol.keywords)
+        assert modcol.name in values
+        for x in values:
             assert not x.startswith("_")
         assert modcol.name in repr(modcol.keywords)
 
diff --git a/testing/test_config.py b/testing/test_config.py
index 9881a5d41..246c5b71b 100644
--- a/testing/test_config.py
+++ b/testing/test_config.py
@@ -123,11 +123,11 @@ class TestConfigCmdlineParsing(object):
 class TestConfigAPI(object):
     def test_config_trace(self, testdir):
         config = testdir.parseconfig()
-        l = []
-        config.trace.root.setwriter(l.append)
+        values = []
+        config.trace.root.setwriter(values.append)
         config.trace("hello")
-        assert len(l) == 1
-        assert l[0] == "hello [config]\n"
+        assert len(values) == 1
+        assert values[0] == "hello [config]\n"
 
     def test_config_getoption(self, testdir):
         testdir.makeconftest("""
@@ -209,10 +209,10 @@ class TestConfigAPI(object):
             paths=hello world/sub.py
         """)
         config = testdir.parseconfig()
-        l = config.getini("paths")
-        assert len(l) == 2
-        assert l[0] == p.dirpath('hello')
-        assert l[1] == p.dirpath('world/sub.py')
+        values = config.getini("paths")
+        assert len(values) == 2
+        assert values[0] == p.dirpath('hello')
+        assert values[1] == p.dirpath('world/sub.py')
         pytest.raises(ValueError, config.getini, 'other')
 
     def test_addini_args(self, testdir):
@@ -226,11 +226,11 @@ class TestConfigAPI(object):
             args=123 "123 hello" "this"
         """)
         config = testdir.parseconfig()
-        l = config.getini("args")
-        assert len(l) == 3
-        assert l == ["123", "123 hello", "this"]
-        l = config.getini("a2")
-        assert l == list("123")
+        values = config.getini("args")
+        assert len(values) == 3
+        assert values == ["123", "123 hello", "this"]
+        values = config.getini("a2")
+        assert values == list("123")
 
     def test_addini_linelist(self, testdir):
         testdir.makeconftest("""
@@ -244,11 +244,11 @@ class TestConfigAPI(object):
                 second line
         """)
         config = testdir.parseconfig()
-        l = config.getini("xy")
-        assert len(l) == 2
-        assert l == ["123 345", "second line"]
-        l = config.getini("a2")
-        assert l == []
+        values = config.getini("xy")
+        assert len(values) == 2
+        assert values == ["123 345", "second line"]
+        values = config.getini("a2")
+        assert values == []
 
     @pytest.mark.parametrize('str_val, bool_val',
                              [('True', True), ('no', False), ('no-ini', True)])
@@ -275,13 +275,13 @@ class TestConfigAPI(object):
             xy= 123
         """)
         config = testdir.parseconfig()
-        l = config.getini("xy")
-        assert len(l) == 1
-        assert l == ["123"]
+        values = config.getini("xy")
+        assert len(values) == 1
+        assert values == ["123"]
         config.addinivalue_line("xy", "456")
-        l = config.getini("xy")
-        assert len(l) == 2
-        assert l == ["123", "456"]
+        values = config.getini("xy")
+        assert len(values) == 2
+        assert values == ["123", "456"]
 
     def test_addinivalue_line_new(self, testdir):
         testdir.makeconftest("""
@@ -291,13 +291,13 @@ class TestConfigAPI(object):
         config = testdir.parseconfig()
         assert not config.getini("xy")
         config.addinivalue_line("xy", "456")
-        l = config.getini("xy")
-        assert len(l) == 1
-        assert l == ["456"]
+        values = config.getini("xy")
+        assert len(values) == 1
+        assert values == ["456"]
         config.addinivalue_line("xy", "123")
-        l = config.getini("xy")
-        assert len(l) == 2
-        assert l == ["456", "123"]
+        values = config.getini("xy")
+        assert len(values) == 2
+        assert values == ["456", "123"]
 
     def test_confcutdir_check_isdir(self, testdir):
         """Give an error if --confcutdir is not a valid directory (#2078)"""
@@ -596,13 +596,13 @@ def test_load_initial_conftest_last_ordering(testdir):
     m = My()
     pm.register(m)
     hc = pm.hook.pytest_load_initial_conftests
-    l = hc._nonwrappers + hc._wrappers
+    values = hc._nonwrappers + hc._wrappers
     expected = [
         "_pytest.config",
         'test_config',
         '_pytest.capture',
     ]
-    assert [x.function.__module__ for x in l] == expected
+    assert [x.function.__module__ for x in values] == expected
 
 
 def test_get_plugin_specs_as_list():
@@ -623,17 +623,17 @@ def test_get_plugin_specs_as_list():
 class TestWarning(object):
     def test_warn_config(self, testdir):
         testdir.makeconftest("""
-            l = []
+            values = []
             def pytest_configure(config):
                 config.warn("C1", "hello")
             def pytest_logwarning(code, message):
                 if message == "hello" and code == "C1":
-                    l.append(1)
+                    values.append(1)
         """)
         testdir.makepyfile("""
             def test_proper(pytestconfig):
                 import conftest
-                assert conftest.l == [1]
+                assert conftest.values == [1]
         """)
         reprec = testdir.inline_run()
         reprec.assertoutcome(passed=1)
diff --git a/testing/test_conftest.py b/testing/test_conftest.py
index 39590f5f2..c0411b723 100644
--- a/testing/test_conftest.py
+++ b/testing/test_conftest.py
@@ -87,8 +87,8 @@ def test_doubledash_considered(testdir):
     conf.join("conftest.py").ensure()
     conftest = PytestPluginManager()
     conftest_setinitial(conftest, [conf.basename, conf.basename])
-    l = conftest._getconftestmodules(conf)
-    assert len(l) == 1
+    values = conftest._getconftestmodules(conf)
+    assert len(values) == 1
 
 
 def test_issue151_load_all_conftests(testdir):
@@ -130,28 +130,28 @@ def test_conftestcutdir(testdir):
     p = testdir.mkdir("x")
     conftest = PytestPluginManager()
     conftest_setinitial(conftest, [testdir.tmpdir], confcutdir=p)
-    l = conftest._getconftestmodules(p)
-    assert len(l) == 0
-    l = conftest._getconftestmodules(conf.dirpath())
-    assert len(l) == 0
+    values = conftest._getconftestmodules(p)
+    assert len(values) == 0
+    values = conftest._getconftestmodules(conf.dirpath())
+    assert len(values) == 0
     assert conf not in conftest._conftestpath2mod
     # but we can still import a conftest directly
     conftest._importconftest(conf)
-    l = conftest._getconftestmodules(conf.dirpath())
-    assert l[0].__file__.startswith(str(conf))
+    values = conftest._getconftestmodules(conf.dirpath())
+    assert values[0].__file__.startswith(str(conf))
     # and all sub paths get updated properly
-    l = conftest._getconftestmodules(p)
-    assert len(l) == 1
-    assert l[0].__file__.startswith(str(conf))
+    values = conftest._getconftestmodules(p)
+    assert len(values) == 1
+    assert values[0].__file__.startswith(str(conf))
 
 
 def test_conftestcutdir_inplace_considered(testdir):
     conf = testdir.makeconftest("")
     conftest = PytestPluginManager()
     conftest_setinitial(conftest, [conf.dirpath()], confcutdir=conf.dirpath())
-    l = conftest._getconftestmodules(conf.dirpath())
-    assert len(l) == 1
-    assert l[0].__file__.startswith(str(conf))
+    values = conftest._getconftestmodules(conf.dirpath())
+    assert len(values) == 1
+    assert values[0].__file__.startswith(str(conf))
 
 
 @pytest.mark.parametrize("name", 'test tests whatever .dotdir'.split())
diff --git a/testing/test_mark.py b/testing/test_mark.py
index 9ae88a665..3ac42daee 100644
--- a/testing/test_mark.py
+++ b/testing/test_mark.py
@@ -468,11 +468,11 @@ class TestFunctional(object):
         assert marker.kwargs == {'x': 1, 'y': 2, 'z': 4}
 
         # test the new __iter__ interface
-        l = list(marker)
-        assert len(l) == 3
-        assert l[0].args == ("pos0",)
-        assert l[1].args == ()
-        assert l[2].args == ("pos1", )
+        values = list(marker)
+        assert len(values) == 3
+        assert values[0].args == ("pos0",)
+        assert values[1].args == ()
+        assert values[2].args == ("pos1", )
 
     @pytest.mark.xfail(reason='unfixed')
     def test_merging_markers_deep(self, testdir):
@@ -564,9 +564,9 @@ class TestFunctional(object):
                 def test_func():
                     pass
         """)
-        l = reprec.getfailedcollections()
-        assert len(l) == 1
-        assert "TypeError" in str(l[0].longrepr)
+        values = reprec.getfailedcollections()
+        assert len(values) == 1
+        assert "TypeError" in str(values[0].longrepr)
 
     def test_mark_dynamically_in_funcarg(self, testdir):
         testdir.makeconftest("""
@@ -575,8 +575,8 @@ class TestFunctional(object):
             def arg(request):
                 request.applymarker(pytest.mark.hello)
             def pytest_terminal_summary(terminalreporter):
-                l = terminalreporter.stats['passed']
-                terminalreporter.writer.line("keyword: %s" % l[0].keywords)
+                values = terminalreporter.stats['passed']
+                terminalreporter.writer.line("keyword: %s" % values[0].keywords)
         """)
         testdir.makepyfile("""
             def test_func(arg):
@@ -599,10 +599,10 @@ class TestFunctional(object):
         item, = items
         keywords = item.keywords
         marker = keywords['hello']
-        l = list(marker)
-        assert len(l) == 2
-        assert l[0].args == ("pos0",)
-        assert l[1].args == ("pos1",)
+        values = list(marker)
+        assert len(values) == 2
+        assert values[0].args == ("pos0",)
+        assert values[1].args == ("pos1",)
 
     def test_no_marker_match_on_unmarked_names(self, testdir):
         p = testdir.makepyfile("""
diff --git a/testing/test_nose.py b/testing/test_nose.py
index 872922ed4..df3e1a94b 100644
--- a/testing/test_nose.py
+++ b/testing/test_nose.py
@@ -8,18 +8,18 @@ def setup_module(mod):
 
 def test_nose_setup(testdir):
     p = testdir.makepyfile("""
-        l = []
+        values = []
         from nose.tools import with_setup
 
-        @with_setup(lambda: l.append(1), lambda: l.append(2))
+        @with_setup(lambda: values.append(1), lambda: values.append(2))
         def test_hello():
-            assert l == [1]
+            assert values == [1]
 
         def test_world():
-            assert l == [1,2]
+            assert values == [1,2]
 
-        test_hello.setup = lambda: l.append(1)
-        test_hello.teardown = lambda: l.append(2)
+        test_hello.setup = lambda: values.append(1)
+        test_hello.teardown = lambda: values.append(2)
     """)
     result = testdir.runpytest(p, '-p', 'nose')
     result.assert_outcomes(passed=2)
@@ -27,15 +27,15 @@ def test_nose_setup(testdir):
 
 def test_setup_func_with_setup_decorator():
     from _pytest.nose import call_optional
-    l = []
+    values = []
 
     class A(object):
         @pytest.fixture(autouse=True)
         def f(self):
-            l.append(1)
+            values.append(1)
 
     call_optional(A(), "f")
-    assert not l
+    assert not values
 
 
 def test_setup_func_not_callable():
@@ -51,24 +51,24 @@ def test_nose_setup_func(testdir):
     p = testdir.makepyfile("""
         from nose.tools import with_setup
 
-        l = []
+        values = []
 
         def my_setup():
             a = 1
-            l.append(a)
+            values.append(a)
 
         def my_teardown():
             b = 2
-            l.append(b)
+            values.append(b)
 
         @with_setup(my_setup, my_teardown)
         def test_hello():
-            print (l)
-            assert l == [1]
+            print (values)
+            assert values == [1]
 
         def test_world():
-            print (l)
-            assert l == [1,2]
+            print (values)
+            assert values == [1,2]
 
     """)
     result = testdir.runpytest(p, '-p', 'nose')
@@ -79,18 +79,18 @@ def test_nose_setup_func_failure(testdir):
     p = testdir.makepyfile("""
         from nose.tools import with_setup
 
-        l = []
+        values = []
         my_setup = lambda x: 1
         my_teardown = lambda x: 2
 
         @with_setup(my_setup, my_teardown)
         def test_hello():
-            print (l)
-            assert l == [1]
+            print (values)
+            assert values == [1]
 
         def test_world():
-            print (l)
-            assert l == [1,2]
+            print (values)
+            assert values == [1,2]
 
     """)
     result = testdir.runpytest(p, '-p', 'nose')
@@ -101,13 +101,13 @@ def test_nose_setup_func_failure(testdir):
 
 def test_nose_setup_func_failure_2(testdir):
     testdir.makepyfile("""
-        l = []
+        values = []
 
         my_setup = 1
         my_teardown = 2
 
         def test_hello():
-            assert l == []
+            assert values == []
 
         test_hello.setup = my_setup
         test_hello.teardown = my_teardown
@@ -121,26 +121,26 @@ def test_nose_setup_partial(testdir):
     p = testdir.makepyfile("""
         from functools import partial
 
-        l = []
+        values = []
 
         def my_setup(x):
             a = x
-            l.append(a)
+            values.append(a)
 
         def my_teardown(x):
             b = x
-            l.append(b)
+            values.append(b)
 
         my_setup_partial = partial(my_setup, 1)
         my_teardown_partial = partial(my_teardown, 2)
 
         def test_hello():
-            print (l)
-            assert l == [1]
+            print (values)
+            assert values == [1]
 
         def test_world():
-            print (l)
-            assert l == [1,2]
+            print (values)
+            assert values == [1,2]
 
         test_hello.setup = my_setup_partial
         test_hello.teardown = my_teardown_partial
@@ -251,19 +251,19 @@ def test_module_level_setup(testdir):
 
 def test_nose_style_setup_teardown(testdir):
     testdir.makepyfile("""
-        l = []
+        values = []
 
         def setup_module():
-            l.append(1)
+            values.append(1)
 
         def teardown_module():
-            del l[0]
+            del values[0]
 
         def test_hello():
-            assert l == [1]
+            assert values == [1]
 
         def test_world():
-            assert l == [1]
+            assert values == [1]
         """)
     result = testdir.runpytest('-p', 'nose')
     result.stdout.fnmatch_lines([
diff --git a/testing/test_pluginmanager.py b/testing/test_pluginmanager.py
index 55e2ea10f..6192176e8 100644
--- a/testing/test_pluginmanager.py
+++ b/testing/test_pluginmanager.py
@@ -85,23 +85,23 @@ class TestPytestPluginInteractions(object):
 
     def test_configure(self, testdir):
         config = testdir.parseconfig()
-        l = []
+        values = []
 
         class A(object):
             def pytest_configure(self, config):
-                l.append(self)
+                values.append(self)
 
         config.pluginmanager.register(A())
-        assert len(l) == 0
+        assert len(values) == 0
         config._do_configure()
-        assert len(l) == 1
+        assert len(values) == 1
         config.pluginmanager.register(A())  # leads to a configured() plugin
-        assert len(l) == 2
-        assert l[0] != l[1]
+        assert len(values) == 2
+        assert values[0] != values[1]
 
         config._ensure_unconfigure()
         config.pluginmanager.register(A())
-        assert len(l) == 2
+        assert len(values) == 2
 
     def test_hook_tracing(self):
         pytestpm = get_config().pluginmanager  # fully initialized with plugins
@@ -116,19 +116,19 @@ class TestPytestPluginInteractions(object):
                 saveindent.append(pytestpm.trace.root.indent)
                 raise ValueError()
 
-        l = []
-        pytestpm.trace.root.setwriter(l.append)
+        values = []
+        pytestpm.trace.root.setwriter(values.append)
         undo = pytestpm.enable_tracing()
         try:
             indent = pytestpm.trace.root.indent
             p = api1()
             pytestpm.register(p)
             assert pytestpm.trace.root.indent == indent
-            assert len(l) >= 2
-            assert 'pytest_plugin_registered' in l[0]
-            assert 'finish' in l[1]
+            assert len(values) >= 2
+            assert 'pytest_plugin_registered' in values[0]
+            assert 'finish' in values[1]
 
-            l[:] = []
+            values[:] = []
             with pytest.raises(ValueError):
                 pytestpm.register(api2())
             assert pytestpm.trace.root.indent == indent
@@ -218,12 +218,12 @@ class TestPytestPluginManager(object):
         mod = py.std.types.ModuleType("x.y.pytest_hello")
         pm.register(mod)
         assert pm.is_registered(mod)
-        l = pm.get_plugins()
-        assert mod in l
+        values = pm.get_plugins()
+        assert mod in values
         pytest.raises(ValueError, "pm.register(mod)")
         pytest.raises(ValueError, lambda: pm.register(mod))
         # assert not pm.is_registered(mod2)
-        assert pm.get_plugins() == l
+        assert pm.get_plugins() == values
 
     def test_canonical_import(self, monkeypatch):
         mod = py.std.types.ModuleType("pytest_xyz")
@@ -257,8 +257,8 @@ class TestPytestPluginManager(object):
 
         # check that it is not registered twice
         pytestpm.consider_module(mod)
-        l = reprec.getcalls("pytest_plugin_registered")
-        assert len(l) == 1
+        values = reprec.getcalls("pytest_plugin_registered")
+        assert len(values) == 1
 
     def test_consider_env_fails_to_import(self, monkeypatch, pytestpm):
         monkeypatch.setenv('PYTEST_PLUGINS', 'nonexisting', prepend=",")
diff --git a/testing/test_recwarn.py b/testing/test_recwarn.py
index ca4023f66..31e70460f 100644
--- a/testing/test_recwarn.py
+++ b/testing/test_recwarn.py
@@ -30,10 +30,10 @@ class TestWarningsRecorderChecker(object):
             assert len(rec.list) == 2
             warn = rec.pop()
             assert str(warn.message) == "hello"
-            l = rec.list
+            values = rec.list
             rec.clear()
             assert len(rec.list) == 0
-            assert l is rec.list
+            assert values is rec.list
             pytest.raises(AssertionError, "rec.pop()")
 
     def test_typechecking(self):
diff --git a/testing/test_runner.py b/testing/test_runner.py
index 1b39a989f..c8e2a6463 100644
--- a/testing/test_runner.py
+++ b/testing/test_runner.py
@@ -13,12 +13,12 @@ class TestSetupState(object):
     def test_setup(self, testdir):
         ss = runner.SetupState()
         item = testdir.getitem("def test_func(): pass")
-        l = [1]
+        values = [1]
         ss.prepare(item)
-        ss.addfinalizer(l.pop, colitem=item)
-        assert l
+        ss.addfinalizer(values.pop, colitem=item)
+        assert values
         ss._pop_and_teardown()
-        assert not l
+        assert not values
 
     def test_teardown_exact_stack_empty(self, testdir):
         item = testdir.getitem("def test_func(): pass")
diff --git a/testing/test_runner_xunit.py b/testing/test_runner_xunit.py
index f01eaca13..fc931f867 100644
--- a/testing/test_runner_xunit.py
+++ b/testing/test_runner_xunit.py
@@ -39,20 +39,20 @@ def test_module_and_function_setup(testdir):
 
 def test_module_setup_failure_no_teardown(testdir):
     reprec = testdir.inline_runsource("""
-        l = []
+        values = []
         def setup_module(module):
-            l.append(1)
+            values.append(1)
             0/0
 
         def test_nothing():
             pass
 
         def teardown_module(module):
-            l.append(2)
+            values.append(2)
     """)
     reprec.assertoutcome(failed=1)
     calls = reprec.getcalls("pytest_runtest_setup")
-    assert calls[0].item.module.l == [1]
+    assert calls[0].item.module.values == [1]
 
 
 def test_setup_function_failure_no_teardown(testdir):
diff --git a/testing/test_session.py b/testing/test_session.py
index f9eb95f3b..9ec13f523 100644
--- a/testing/test_session.py
+++ b/testing/test_session.py
@@ -45,9 +45,9 @@ class SessionTests(object):
             a = 1
         """)
         reprec = testdir.inline_run(tfile)
-        l = reprec.getfailedcollections()
-        assert len(l) == 1
-        out = str(l[0].longrepr)
+        values = reprec.getfailedcollections()
+        assert len(values) == 1
+        out = str(values[0].longrepr)
         assert out.find('does_not_work') != -1
 
     def test_raises_output(self, testdir):
@@ -75,9 +75,9 @@ class SessionTests(object):
 
     def test_syntax_error_module(self, testdir):
         reprec = testdir.inline_runsource("this is really not python")
-        l = reprec.getfailedcollections()
-        assert len(l) == 1
-        out = str(l[0].longrepr)
+        values = reprec.getfailedcollections()
+        assert len(values) == 1
+        out = str(values[0].longrepr)
         assert out.find(str('not python')) != -1
 
     def test_exit_first_problem(self, testdir):
@@ -144,15 +144,15 @@ class TestNewSession(SessionTests):
 
     def test_order_of_execution(self, testdir):
         reprec = testdir.inline_runsource("""
-            l = []
+            values = []
             def test_1():
-                l.append(1)
+                values.append(1)
             def test_2():
-                l.append(2)
+                values.append(2)
             def test_3():
-                assert l == [1,2]
+                assert values == [1,2]
             class Testmygroup(object):
-                reslist = l
+                reslist = values
                 def test_1(self):
                     self.reslist.append(1)
                 def test_2(self):
@@ -242,13 +242,13 @@ def test_exclude(testdir):
 def test_sessionfinish_with_start(testdir):
     testdir.makeconftest("""
         import os
-        l = []
+        values = []
         def pytest_sessionstart():
-            l.append(os.getcwd())
+            values.append(os.getcwd())
             os.chdir("..")
 
         def pytest_sessionfinish():
-            assert l[0] == os.getcwd()
+            assert values[0] == os.getcwd()
 
     """)
     res = testdir.runpytest("--collect-only")
diff --git a/testing/test_skipping.py b/testing/test_skipping.py
index ae334e7cd..978944876 100644
--- a/testing/test_skipping.py
+++ b/testing/test_skipping.py
@@ -685,9 +685,9 @@ def test_skip_reasons_folding():
     ev3.longrepr = longrepr
     ev3.skipped = True
 
-    l = folded_skips([ev1, ev2, ev3])
-    assert len(l) == 1
-    num, fspath, lineno, reason = l[0]
+    values = folded_skips([ev1, ev2, ev3])
+    assert len(values) == 1
+    num, fspath, lineno, reason = values[0]
     assert num == 3
     assert fspath == path
     assert lineno == lineno
diff --git a/testing/test_terminal.py b/testing/test_terminal.py
index c2a6c0fcf..b7c880feb 100644
--- a/testing/test_terminal.py
+++ b/testing/test_terminal.py
@@ -24,12 +24,12 @@ class Option(object):
 
     @property
     def args(self):
-        l = []
+        values = []
         if self.verbose:
-            l.append('-v')
+            values.append('-v')
         if self.fulltrace:
-            l.append('--fulltrace')
-        return l
+            values.append('--fulltrace')
+        return values
 
 
 def pytest_generate_tests(metafunc):
diff --git a/testing/test_unittest.py b/testing/test_unittest.py
index 2bc1630cd..e19773587 100644
--- a/testing/test_unittest.py
+++ b/testing/test_unittest.py
@@ -73,19 +73,19 @@ def test_setup(testdir):
 
 def test_setUpModule(testdir):
     testpath = testdir.makepyfile("""
-        l = []
+        values = []
 
         def setUpModule():
-            l.append(1)
+            values.append(1)
 
         def tearDownModule():
-            del l[0]
+            del values[0]
 
         def test_hello():
-            assert l == [1]
+            assert values == [1]
 
         def test_world():
-            assert l == [1]
+            assert values == [1]
         """)
     result = testdir.runpytest(testpath)
     result.stdout.fnmatch_lines([
@@ -95,13 +95,13 @@ def test_setUpModule(testdir):
 
 def test_setUpModule_failing_no_teardown(testdir):
     testpath = testdir.makepyfile("""
-        l = []
+        values = []
 
         def setUpModule():
             0/0
 
         def tearDownModule():
-            l.append(1)
+            values.append(1)
 
         def test_hello():
             pass
@@ -109,7 +109,7 @@ def test_setUpModule_failing_no_teardown(testdir):
     reprec = testdir.inline_run(testpath)
     reprec.assertoutcome(passed=0, failed=1)
     call = reprec.getcalls("pytest_runtest_setup")[0]
-    assert not call.item.module.l
+    assert not call.item.module.values
 
 
 def test_new_instances(testdir):
@@ -129,14 +129,14 @@ def test_teardown(testdir):
     testpath = testdir.makepyfile("""
         import unittest
         class MyTestCase(unittest.TestCase):
-            l = []
+            values = []
             def test_one(self):
                 pass
             def tearDown(self):
-                self.l.append(None)
+                self.values.append(None)
         class Second(unittest.TestCase):
             def test_check(self):
-                self.assertEqual(MyTestCase.l, [None])
+                self.assertEqual(MyTestCase.values, [None])
     """)
     reprec = testdir.inline_run(testpath)
     passed, skipped, failed = reprec.countoutcomes()
diff --git a/testing/test_warnings.py b/testing/test_warnings.py
index 4beff4548..7d3262802 100644
--- a/testing/test_warnings.py
+++ b/testing/test_warnings.py
@@ -144,6 +144,8 @@ def test_unicode(testdir, pyfile_with_warnings):
 @pytest.mark.skipif(sys.version_info >= (3, 0),
                     reason='warnings message is broken as it is not str instance')
 def test_py2_unicode(testdir, pyfile_with_warnings):
+    if getattr(sys, "pypy_version_info", ())[:2] == (5, 9) and sys.platform.startswith('win'):
+        pytest.xfail("fails with unicode error on PyPy2 5.9 and Windows (#2905)")
     testdir.makepyfile('''
         # -*- coding: utf8 -*-
         import warnings
diff --git a/tox.ini b/tox.ini
index 09f59f5e3..900b602dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -218,8 +218,3 @@ filterwarnings =
 
 [flake8]
 max-line-length = 120
-ignore=
-    # do not use bare except'
-    E722
-    # ambiguous variable name 'l'
-    E741