Nick Coghlan writes:
> Patch against current CVS added to SF with the behaviour:
>
> def update_meta(self, other):
> self.__name__ = other.__name__
> self.__doc__ = other.__doc__
> self.__dict__.update(other.__dict__)
Nice... thanks. But I have to ask: is this really the right set of metadata to
be updating? Here are a few things that perhaps ought be copied by update_meta:
f.__name__ (already included)
f.__doc__ (already included)
f.__dict__ (already included)
f.__module__ (probably should include)
f.func_code.co_filename (to match f.__name__, but I'd leave it alone)
there's also the annoying fact that in IDLE (and in some other python-aware
IDEs) one can see the argument signature for a function as a "tool tip"
or other hint. Very handy that, but if a decorator is applied then all
you will see is "func(*args, **kwargs)" which is less than helpful. I'm
not sure whether this CAN be duplicated... I believe it is generated by
examining the following:
f.func_code.co_argcount
f.func_code.co_varnames
f.func_code.co_flags & 0x4
f.func_code.co_flags & 0x8
...and I suspect (experimentation seems to confirm this) that if you mangle
these then the code object won't work correctly. If anyone's got a
suggestion for fixing this, I'd love to hear it.
-- Michael Chermside
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