getargspec.py 文件源码

def getargspec(func):
        """Like inspect.getargspec but supports functools.partial as well."""
        if inspect.ismethod(func):
            func = func.__func__
        parts = 0, ()
        if type(func) is partial:
            keywords = func.keywords
            if keywords is None:
                keywords = {}
            parts = len(func.args), keywords.keys()
            func = func.func
        if not inspect.isfunction(func):
            raise TypeError('%r is not a Python function' % func)
        args, varargs, varkw = inspect.getargs(func.__code__)
        func_defaults = func.__defaults__
        if func_defaults is None:
            func_defaults = []
        else:
            func_defaults = list(func_defaults)
        if parts[0]:
            args = args[parts[0]:]
        if parts[1]:
            for arg in parts[1]:
                i = args.index(arg) - len(args)
                del args[i]
                try:
                    del func_defaults[i]
                except IndexError:
                    pass
        return inspect.ArgSpec(args, varargs, varkw, func_defaults)