remove unused imports (using "importchecker" project)

_pytest/assertion/__init__.py

@@ -3,7 +3,6 @@ support for presenting detailed information in failing assertions.
 """
 import py
 import sys
-import pytest
 from _pytest.monkeypatch import monkeypatch
 from _pytest.assertion import util
 

_pytest/core.py

@@ -1,7 +1,7 @@
 """
 pytest PluginManager, basic initialization and tracing.
 """
-import sys, os
+import sys
 import inspect
 import py
 

_pytest/main.py

@@ -2,14 +2,12 @@
 
 import py
 import pytest, _pytest
-import inspect
 import os, sys, imp
 try:
     from collections import MutableMapping as MappingMixin
 except ImportError:
     from UserDict import DictMixin as MappingMixin
 
-from _pytest.mark import MarkInfo
 from _pytest.runner import collect_one_node, Skipped
 
 tracebackcutdir = py.path.local(_pytest.__file__).dirpath()

_pytest/nose.py

@@ -1,7 +1,6 @@
 """ run test suites written for nose. """
 
 import pytest, py
-import inspect
 import sys
 from _pytest import unittest
 

_pytest/pytester.py

@@ -4,7 +4,6 @@ import py, pytest
 import sys, os
 import codecs
 import re
-import inspect
 import time
 from fnmatch import fnmatch
 from _pytest.main import Session, EXIT_OK

_pytest/recwarn.py

@@ -1,7 +1,7 @@
 """ recording warnings during test function execution. """
 
 import py
-import sys, os
+import sys
 
 def pytest_funcarg__recwarn(request):
     """Return a WarningsRecorder instance that provides these methods:

_pytest/standalonetemplate.py

@@ -6,7 +6,6 @@ sources = """
 import sys
 import base64
 import zlib
-import imp
 
 class DictImporter(object):
     def __init__(self, sources):

_pytest/unittest.py

@@ -1,6 +1,6 @@
 """ discovery and running of std-library "unittest" style tests. """
 import pytest, py
-import sys, pdb
+import sys
 
 # for transfering markers
 from _pytest.python import transfer_markers