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Issue #21709: Improved implementation to cover the frozen module case.

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This commit is contained in:
Vinay Sajip 2014-06-12 23:36:33 +01:00
parent 307bccc6ff
commit 194bcaf4dc
1 changed files with 34 additions and 28 deletions
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62
Lib/logging/__init__.py
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@ -51,34 +51,6 @@ __date__ = "07 February 2010"
# Miscellaneous module data # Miscellaneous module data
#--------------------------------------------------------------------------- #---------------------------------------------------------------------------
#
# _srcfile is used when walking the stack to check when we've got the first
# caller stack frame.
#
if hasattr(sys, 'frozen'):
_srcfile = os.path.join('logging', '__init__.py')
else:
_srcfile = __file__
_srcfile = os.path.normcase(_srcfile)
if hasattr(sys, '_getframe'):
currentframe = lambda: sys._getframe(3)
else: #pragma: no cover
def currentframe():
"""Return the frame object for the caller's stack frame."""
try:
raise Exception
except Exception:
return sys.exc_info()[2].tb_frame.f_back
# _srcfile is only used in conjunction with sys._getframe().
# To provide compatibility with older versions of Python, set _srcfile
# to None if _getframe() is not available; this value will prevent
# findCaller() from being called.
#if not hasattr(sys, "_getframe"):
# _srcfile = None
# #
#_startTime is used as the base when calculating the relative time of events #_startTime is used as the base when calculating the relative time of events
# #
@ -172,6 +144,40 @@ def addLevelName(level, levelName):
finally: finally:
_releaseLock() _releaseLock()
if hasattr(sys, '_getframe'):
currentframe = lambda: sys._getframe(3)
else: #pragma: no cover
def currentframe():
"""Return the frame object for the caller's stack frame."""
try:
raise Exception
except Exception:
return sys.exc_info()[2].tb_frame.f_back
#
# _srcfile is used when walking the stack to check when we've got the first
# caller stack frame, by skipping frames whose filename is that of this
# module's source. It therefore should contain the filename of this module's
# source file.
#
# Ordinarily we would use __file__ for this, but frozen modules don't always
# have __file__ set, for some reason (see Issue #21736). Thus, we get the
# filename from a handy code object from a function defined in this module.
# (There's no particular reason for picking addLevelName.)
#
_srcfile = os.path.normcase(addLevelName.__code__.co_filename)
# _srcfile is only used in conjunction with sys._getframe().
# To provide compatibility with older versions of Python, set _srcfile
# to None if _getframe() is not available; this value will prevent
# findCaller() from being called. You can also do this if you want to avoid
# the overhead of fetching caller information, even when _getframe() is
# available.
#if not hasattr(sys, '_getframe'):
# _srcfile = None
def _checkLevel(level): def _checkLevel(level):
if isinstance(level, int): if isinstance(level, int):
rv = level rv = level