[Python-Dev] PEP 318 - writing to func_name attribute (original) (raw)

Skip Montanaro skip at pobox.com
Fri Aug 6 15🔞33 CEST 2004

One thing I added awhile back to PEP 318 as an open issue is that for ease of writing wrappers the func_name attribute of a function object should be writable. For example, in situations where the decorator returns a new function object (often, I would think) it would really be nice if that new function object had the same name as the undecorated function. Consider:

def a(func):
    def _inner(*args, **kwds):
        return func(*args, **kwds)
    return _inner

@a
def func(*args, **kwds):
    print args
    print kwds

print "func's name:", func.func_name

I realize you can use new.function() to create a new function object, but that seems like a fair amount of extra complexity just to change the function's name. I'd prefer it if the decorator could be written as:

def a(func):
    def _inner(*args, **kwds):
        return func(*args, **kwds)
    _inner.func_name = func.func_name
    return _inner

That fails because func_name is readonly. Any chance this restriction can be loosened up?

Skip

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