actions.py 文件源码

def strip_defaults(self):
        """
        Returns self.parameters list with all default values stripped from right
        side.
        That means, if last parameter is default, it's removed from list; if
        before-last parameter is default, it's removed as well; et cetera et
        cetera until first non-default parameter is reached.

        if as_strings is set to True, all parameters are converted to apropriate
        strings (x.name for enums, x.encode('string_escape') for strings, 
        """
        argspec = inspect.getargspec(self.__class__.__init__)
        required_count = len(argspec.args) - len(argspec.defaults) - 1
        d = list(argspec.defaults)
        l = list(self.parameters)
        while len(d) and len(l) > required_count and d[-1] == l[-1]:
            d, l = d[:-1], l[:-1]
        return l