Merge pull request #4661 from asottile/more_py

remove and ban py.io.BytesIO, py.process, py.path.local.sysfind

.pre-commit-config.yaml

@@ -54,5 +54,14 @@ repos:
     -   id: py-deprecated
         name: py library is deprecated
         language: pygrep
-        entry: '\bpy\.(builtin\.|code\.|std\.|io\.saferepr)'
+        entry: >
+            (?x)\bpy\.(
+                _code\.|
+                builtin\.|
+                code\.|
+                io\.(BytesIO|saferepr)|
+                path\.local\.sysfind|
+                process\.|
+                std\.
+            )
         types: [python]

doc/en/example/attic.rst

@@ -24,10 +24,10 @@ example: specifying and selecting acceptance tests
                 pytest.skip("specify -A to run acceptance tests")
             self.tmpdir = request.config.mktemp(request.function.__name__, numbered=True)
 
-        def run(self, cmd):
+        def run(self, *cmd):
             """ called by test code to execute an acceptance test. """
             self.tmpdir.chdir()
-            return py.process.cmdexec(cmd)
+            return subprocess.check_output(cmd).decode()
 
 
 and the actual test function example:
@@ -36,7 +36,7 @@ and the actual test function example:
 
     def test_some_acceptance_aspect(accept):
         accept.tmpdir.mkdir("somesub")
-        result = accept.run("ls -la")
+        result = accept.run("ls", "-la")
         assert "somesub" in result
 
 If you run this test without specifying a command line option

doc/en/example/multipython.py

@@ -2,10 +2,10 @@
 module containing a parametrized tests testing cross-python
 serialization via the pickle module.
 """
+import distutils.spawn
+import subprocess
 import textwrap
 
-import py
-
 import pytest
 
 pythonlist = ["python2.7", "python3.4", "python3.5"]
@@ -24,7 +24,7 @@ def python2(request, python1):
 
 class Python(object):
     def __init__(self, version, picklefile):
-        self.pythonpath = py.path.local.sysfind(version)
+        self.pythonpath = distutils.spawn.find_executable(version)
         if not self.pythonpath:
             pytest.skip("{!r} not found".format(version))
         self.picklefile = picklefile
@@ -43,7 +43,7 @@ class Python(object):
                 )
             )
         )
-        py.process.cmdexec("{} {}".format(self.pythonpath, dumpfile))
+        subprocess.check_call((self.pythonpath, str(dumpfile)))
 
     def load_and_is_true(self, expression):
         loadfile = self.picklefile.dirpath("load.py")
@@ -63,7 +63,7 @@ class Python(object):
             )
         )
         print(loadfile)
-        py.process.cmdexec("{} {}".format(self.pythonpath, loadfile))
+        subprocess.check_call((self.pythonpath, str(loadfile)))
 
 
 @pytest.mark.parametrize("obj", [42, {}, {1: 3}])

src/_pytest/fixtures.py

@@ -14,10 +14,10 @@ import attr
 import py
 import six
 from more_itertools import flatten
-from py._code.code import FormattedExcinfo
 
 import _pytest
 from _pytest import nodes
+from _pytest._code.code import FormattedExcinfo
 from _pytest._code.code import TerminalRepr
 from _pytest.compat import _format_args
 from _pytest.compat import _PytestWrapper

src/_pytest/pytester.py

@@ -4,6 +4,7 @@ from __future__ import division
 from __future__ import print_function
 
 import codecs
+import distutils.spawn
 import gc
 import os
 import platform
@@ -80,7 +81,7 @@ class LsofFdLeakChecker(object):
 
     def _exec_lsof(self):
         pid = os.getpid()
-        return py.process.cmdexec("lsof -Ffn0 -p %d" % pid)
+        return subprocess.check_output(("lsof", "-Ffn0", "-p", str(pid))).decode()
 
     def _parse_lsof_output(self, out):
         def isopen(line):
@@ -107,11 +108,8 @@ class LsofFdLeakChecker(object):
 
     def matching_platform(self):
         try:
-            py.process.cmdexec("lsof -v")
+            subprocess.check_output(("lsof", "-v"))
-        except (py.process.cmdexec.Error, UnicodeDecodeError):
+        except (OSError, subprocess.CalledProcessError):
-            # cmdexec may raise UnicodeDecodeError on Windows systems with
-            # locale other than English:
-            # https://bitbucket.org/pytest-dev/py/issues/66
             return False
         else:
             return True
@@ -153,7 +151,7 @@ def getexecutable(name, cache={}):
     try:
         return cache[name]
     except KeyError:
-        executable = py.path.local.sysfind(name)
+        executable = distutils.spawn.find_executable(name)
         if executable:
             import subprocess
 

src/_pytest/python.py

@@ -936,7 +936,7 @@ class Metafunc(fixtures.FuncargnamesCompatAttr):
         :rtype: List[str]
         :return: the list of ids for each argname given
         """
-        from py.io import saferepr
+        from _pytest._io.saferepr import saferepr
 
         idfn = None
         if callable(ids):

testing/test_capture.py

@@ -4,8 +4,10 @@ from __future__ import division
 from __future__ import print_function
 
 import contextlib
+import io
 import os
 import pickle
+import subprocess
 import sys
 import textwrap
 from io import UnsupportedOperation
@@ -851,7 +853,7 @@ class TestCaptureIO(object):
 
 
 def test_bytes_io():
-    f = py.io.BytesIO()
+    f = io.BytesIO()
     f.write(b"hello")
     with pytest.raises(TypeError):
         f.write(u"hello")
@@ -933,18 +935,18 @@ def test_dupfile(tmpfile):
 
 
 def test_dupfile_on_bytesio():
-    io = py.io.BytesIO()
+    bio = io.BytesIO()
-    f = capture.safe_text_dupfile(io, "wb")
+    f = capture.safe_text_dupfile(bio, "wb")
     f.write("hello")
-    assert io.getvalue() == b"hello"
+    assert bio.getvalue() == b"hello"
     assert "BytesIO object" in f.name
 
 
 def test_dupfile_on_textio():
-    io = py.io.TextIO()
+    tio = py.io.TextIO()
-    f = capture.safe_text_dupfile(io, "wb")
+    f = capture.safe_text_dupfile(tio, "wb")
     f.write("hello")
-    assert io.getvalue() == "hello"
+    assert tio.getvalue() == "hello"
     assert not hasattr(f, "name")
 
 
@@ -952,12 +954,12 @@ def test_dupfile_on_textio():
 def lsof_check():
     pid = os.getpid()
     try:
-        out = py.process.cmdexec("lsof -p %d" % pid)
+        out = subprocess.check_output(("lsof", "-p", str(pid))).decode()
-    except (py.process.cmdexec.Error, UnicodeDecodeError):
+    except (OSError, subprocess.CalledProcessError, UnicodeDecodeError):
         # about UnicodeDecodeError, see note on pytester
         pytest.skip("could not run 'lsof'")
     yield
-    out2 = py.process.cmdexec("lsof -p %d" % pid)
+    out2 = subprocess.check_output(("lsof", "-p", str(pid))).decode()
     len1 = len([x for x in out.split("\n") if "REG" in x])
     len2 = len([x for x in out2.split("\n") if "REG" in x])
     assert len2 < len1 + 3, out2

testing/test_parseopt.py

@@ -3,6 +3,7 @@ from __future__ import division
 from __future__ import print_function
 
 import argparse
+import distutils.spawn
 import os
 import sys
 
@@ -296,7 +297,7 @@ class TestParser(object):
 
 
 def test_argcomplete(testdir, monkeypatch):
-    if not py.path.local.sysfind("bash"):
+    if not distutils.spawn.find_executable("bash"):
         pytest.skip("bash not available")
     script = str(testdir.tmpdir.join("test_argcomplete"))
     pytest_bin = sys.argv[0]