Use zip and map from six

_pytest/compat.py

@@ -127,8 +127,6 @@ def getfuncargnames(function, is_method=False, cls=None):
 
 
 if _PY3:
-    imap = map
-    izip = zip
     STRING_TYPES = bytes, str
     UNICODE_TYPES = str,
 

_pytest/mark.py

@@ -5,7 +5,7 @@ import inspect
 import warnings
 from collections import namedtuple
 from operator import attrgetter
-from .compat import imap
+from six.moves import map
 from .deprecated import MARK_PARAMETERSET_UNPACKING
 
 
@@ -427,7 +427,7 @@ class MarkInfo(object):
 
     def __iter__(self):
         """ yield MarkInfo objects each relating to a marking-call. """
-        return imap(MarkInfo, self._marks)
+        return map(MarkInfo, self._marks)
 
 
 MARK_GEN = MarkGenerator()

_pytest/python_api.py

@@ -2,8 +2,9 @@ import math
 import sys
 
 import py
+from six.moves import zip
 
-from _pytest.compat import isclass, izip
+from _pytest.compat import isclass
 from _pytest.outcomes import fail
 import _pytest._code
 
@@ -145,7 +146,7 @@ class ApproxSequence(ApproxBase):
         return ApproxBase.__eq__(self, actual)
 
     def _yield_comparisons(self, actual):
-        return izip(actual, self.expected)
+        return zip(actual, self.expected)
 
 
 class ApproxScalar(ApproxBase):