Hi,
I am trying to write a class decorator that checks whether deprecated parameters with non-default arguments are used. More complete code is here: http://pastebin.com/ZqnMis6M. In the code below, how should I modify __call__ such that f.bar(old="oh no") prints "hello world"? I thought it would be a fun way to play with the inspect module, but my head is numb now and I am thirsty for a beer! import inspectimport functools import warnings class check_deprecated_args(object): """ Class decorator that checks whether deprecated parameters with non-default arguments are used Parameters ---------- deprecated_params : tuple tuple of strings of parameters that should raise a DeprecationWarning, if they are used with non-default arguments Raises ------ DeprecationWarning : if deprecated parameters are used with non-default arguments in the class's constructor. """ def __init__(self, deprecated_params): self.deprecated_params = deprecated_params def __call__(self, cls): @functools.wraps(cls) def inner(*used_args, **used_kwargs): print "called" # insert sneaky 'inspect' code here #pprint( dict(inspect.getmembers(cls)) ) return cls # --- this is wrong, it should return the Foo instance object! return inner if __name__ == "__main__": @check_deprecated_args(deprecated_params=("old", "older")) class Foo(object): def __init__(self, old=True, older=None, new="yaay"): pass def bar(self, old=True, new=True): print "hello world" f = Foo(new="great", old="obsolete", older="stop using it") print repr(f) print f.bar(old="oh no") Regards, Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- https://mail.python.org/mailman/listinfo/python-list
