(self, filename=None,
               ignore_discard=False, ignore_expires=False)
Clear all cookies and reload cookies from a saved file.

        Raises LoadError (or IOError) if reversion is not successful; the
        object's state will not be altered if this happens.
Clear all cookies and reload cookies from a saved file.
Clear all cookies and reload cookies from a saved file .
def revert(self, filename=None,
               ignore_discard=False, ignore_expires=False):
        """Clear all cookies and reload cookies from a saved file.

        Raises LoadError (or IOError) if reversion is not successful; the
        object's state will not be altered if this happens.

        """
        if filename is None:
            if self.filename is not None: filename = self.filename
            else: raise ValueError(MISSING_FILENAME_TEXT)

        self._cookies_lock.acquire()
        try:

            old_state = copy.deepcopy(self._cookies)
            self._cookies = {}
            try:
                self.load(filename, ignore_discard, ignore_expires)
            except (LoadError, IOError):
                self._cookies = old_state
                raise

        finally:
            self._cookies_lock.release()
def revert ( self , filename = None , ignore_discard = False , ignore_expires = False ) : if filename is None : if self . filename is not None : filename = self . filename else : raise ValueError ( MISSING_FILENAME_TEXT ) self . _cookies_lock . acquire ( ) try : old_state = copy . deepcopy ( self . _cookies ) self . _cookies = { } try : self . load ( filename , ignore_discard , ignore_expires ) except ( LoadError , IOError ) : self . _cookies = old_state raise finally : self . _cookies_lock . release ( )