Merge pull request #2316 from nicoddemus/add-future-imports

Add __future__ imports to all pytest modules

Author: RonnyPfannschmidt

CONTRIBUTING.rst

@@ -57,7 +57,7 @@
   which should throw a KeyError: 'COMPLINE' (which is properly set by the
   global argcomplete script).
 """
-
+from __future__ import absolute_import, division, print_function
 import sys
 import os
 from glob import glob

_pytest/_argcomplete.py

@@ -1,4 +1,5 @@
 """ python inspection/code generation API """
+from __future__ import absolute_import, division, print_function
 from .code import Code  # noqa
 from .code import ExceptionInfo  # noqa
 from .code import Frame  # noqa

_pytest/_code/__init__.py

@@ -2,6 +2,7 @@
 # CHANGES:
 # - some_str is replaced, trying to create unicode strings
 #
+from __future__ import absolute_import, division, print_function
 import types
 
 def format_exception_only(etype, value):

_pytest/_code/_py2traceback.py

@@ -1,3 +1,4 @@
+from __future__ import absolute_import, division, print_function
 import sys
 from inspect import CO_VARARGS, CO_VARKEYWORDS
 import re

_pytest/_code/code.py

@@ -1,4 +1,4 @@
-from __future__ import generators
+from __future__ import absolute_import, division, generators, print_function
 
 from bisect import bisect_right
 import sys

_pytest/_code/source.py

@@ -2,7 +2,7 @@
 imports symbols from vendored "pluggy" if available, otherwise
 falls back to importing "pluggy" from the default namespace.
 """
-
+from __future__ import absolute_import, division, print_function
 try:
     from _pytest.vendored_packages.pluggy import *  # noqa
     from _pytest.vendored_packages.pluggy import __version__  # noqa

_pytest/_pluggy.py

@@ -1,6 +1,7 @@
 """
 support for presenting detailed information in failing assertions.
 """
+from __future__ import absolute_import, division, print_function
 import py
 import sys
 

_pytest/assertion/__init__.py

@@ -1,5 +1,5 @@
 """Rewrite assertion AST to produce nice error messages"""
-
+from __future__ import absolute_import, division, print_function
 import ast
 import _ast
 import errno

_pytest/assertion/rewrite.py

@@ -4,7 +4,7 @@
 Current default behaviour is to truncate assertion explanations at
 ~8 terminal lines, unless running in "-vv" mode or running on CI.
 """
-
+from __future__ import absolute_import, division, print_function
 import os
 
 import py