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-rw-r--r--Lib/os.py2
-rwxr-xr-xLib/pydoc.py4
-rw-r--r--Lib/test/support.py2
-rw-r--r--Lib/test/test_ftplib.py2
-rw-r--r--Lib/test/test_posix.py4
-rw-r--r--Lib/test/test_sys.py2
-rw-r--r--Lib/test/test_winsound.py8
-rw-r--r--Lib/unittest/case.py2
8 files changed, 11 insertions, 15 deletions
diff --git a/Lib/os.py b/Lib/os.py
index c31df81..8241f36 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -961,7 +961,7 @@ def popen(cmd, mode="r", buffering=-1):
raise TypeError("invalid cmd type (%s, expected string)" % type(cmd))
if mode not in ("r", "w"):
raise ValueError("invalid mode %r" % mode)
- if buffering == 0 or buffering == None:
+ if buffering == 0 or buffering is None:
raise ValueError("popen() does not support unbuffered streams")
import subprocess, io
if mode == "r":
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index b6aae5e..490eb21 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -2551,8 +2551,8 @@ def cli():
if opt == '-w':
writing = True
- if start_server == True:
- if port == None:
+ if start_server:
+ if port is None:
port = 0
browse(port, open_browser=open_browser)
return
diff --git a/Lib/test/support.py b/Lib/test/support.py
index 014bcf5..c5640e0 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -1232,7 +1232,7 @@ def run_with_tz(tz):
try:
return func(*args, **kwds)
finally:
- if orig_tz == None:
+ if orig_tz is None:
del os.environ['TZ']
else:
os.environ['TZ'] = orig_tz
diff --git a/Lib/test/test_ftplib.py b/Lib/test/test_ftplib.py
index 7028f46..299a146 100644
--- a/Lib/test/test_ftplib.py
+++ b/Lib/test/test_ftplib.py
@@ -342,7 +342,7 @@ if ssl is not None:
# http://www.mail-archive.com/openssl-users@openssl.org/msg60710.html
pass
self._ssl_closing = False
- if getattr(self, '_ccc', False) == False:
+ if getattr(self, '_ccc', False) is False:
super(SSLConnection, self).close()
else:
pass
diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
index 4e7a37c..f59607b 100644
--- a/Lib/test/test_posix.py
+++ b/Lib/test/test_posix.py
@@ -651,7 +651,7 @@ class PosixTester(unittest.TestCase):
groups = idg.read().strip()
ret = idg.close()
- if ret != None or not groups:
+ if ret is not None or not groups:
raise unittest.SkipTest("need working 'id -G'")
self.assertEqual(
@@ -665,7 +665,7 @@ class PosixTester(unittest.TestCase):
groups = idg.read().strip()
ret = idg.close()
- if ret != None or not groups:
+ if ret is not None or not groups:
raise unittest.SkipTest("need working 'id -G'")
# 'id -G' and 'os.getgroups()' should return the same
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 349b1ac..a1074c3 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -897,7 +897,7 @@ class SizeofTest(unittest.TestCase):
except TypeError:
tb = sys.exc_info()[2]
# traceback
- if tb != None:
+ if tb is not None:
check(tb, size('2P2i'))
# symtable entry
# XXX
diff --git a/Lib/test/test_winsound.py b/Lib/test/test_winsound.py
index 34c3dea..eb7f75f 100644
--- a/Lib/test/test_winsound.py
+++ b/Lib/test/test_winsound.py
@@ -16,16 +16,12 @@ def has_sound(sound):
try:
# Ask the mixer API for the number of devices it knows about.
# When there are no devices, PlaySound will fail.
- if ctypes.windll.winmm.mixerGetNumDevs() is 0:
+ if ctypes.windll.winmm.mixerGetNumDevs() == 0:
return False
key = winreg.OpenKeyEx(winreg.HKEY_CURRENT_USER,
"AppEvents\Schemes\Apps\.Default\{0}\.Default".format(sound))
- value = winreg.EnumValue(key, 0)[1]
- if value is not "":
- return True
- else:
- return False
+ return winreg.EnumValue(key, 0)[1] != ""
except WindowsError:
return False
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py
index 28f0a2d..f334865 100644
--- a/Lib/unittest/case.py
+++ b/Lib/unittest/case.py
@@ -736,7 +736,7 @@ class TestCase(object):
msg: Optional message to use on failure instead of a list of
differences.
"""
- if seq_type != None:
+ if seq_type is not None:
seq_type_name = seq_type.__name__
if not isinstance(seq1, seq_type):
raise self.failureException('First sequence is not a %s: %s'