def __getattr__(self, name):
"""Retrieves the 'value' attribute of the flag --name."""
fl = self.FlagDict()
if name not in fl:
raise AttributeError(name)
if name in self.__dict__['__hiddenflags']:
raise AttributeError(name)
if self.__dict__['__flags_parsed'] or fl[name].present:
return fl[name].value
else:
error_message = (
'Trying to access flag %s before flags were parsed.' % name)
if self._IsUnparsedFlagAccessAllowed(name):
# Print warning to stderr. Messages in logs are often ignored/unnoticed.
warnings.warn(error_message +
' This will raise an exception in the future.',
RuntimeWarning,
stacklevel=2)
# Force logging.exception() to behave realistically, but don't propagate
# exception up. Allow flag value to be returned (for now).
try:
raise exceptions.UnparsedFlagAccessError(error_message)
except exceptions.UnparsedFlagAccessError:
logging.exception(error_message)
return fl[name].value
else:
raise exceptions.UnparsedFlagAccessError(error_message)
def __getattr__(self, name):
"""Retrieves the 'value' attribute of the flag --name."""
fl = self.FlagDict()
if name not in fl:
raise AttributeError(name)
if name in self.__dict__['__hiddenflags']:
raise AttributeError(name)
if self.__dict__['__flags_parsed'] or fl[name].present:
return fl[name].value
else:
# Trying to use the flag before FlagValues object got a chance to parse
# arguments.
# Doing that results in __getattr__ returning default value of the flag,
# no matter what was given in the arguments.
# Note: if you are using hasattr() and seeing this error, please use
# 'flag_name not in FLAGS.FlagDict()' instead of 'hasattr(flag_name)'.
# Unfortunately hasattr() implemented via calling getattr and there's no
# reliable way to determine hasattr() vs getattr().
try:
error_message = (
'Trying to access flag %s before flags were parsed.' %
name)
warnings.warn(error_message +
' This will raise an exception in the future.',
RuntimeWarning,
stacklevel=2)
traceback.print_stack()
raise exceptions.UnparsedFlagAccessError(error_message)
except exceptions.UnparsedFlagAccessError:
if self.__dict__['__reset_called']:
# Raise exception if .Reset() was called. This mostly happens in tests
# and very hard to fix via automated test, so we rather make those
# tests fail.
raise
elif os.getenv('GFLAGS_ALLOW_UNPARSED_FLAG_ACCESS',
'1') == '1':
logging.exception(error_message)
return fl[name].value
else:
raise