[Python-ideas] __before__ and __after__ attributes for functions

[Chris Angelico]

On Fri, Jan 24, 2014 at 5:14 AM, David Mertz <mertz at gnosis.cx> wrote:
> from library import foo
> @prepostcall
> def foo(*args, **kws):
>     return foo(*args, **kws)

That's going to infinite-loop, so you'd need to do an 'as' import:

from library import foo as foo_original
@prepostcall
def foo(*args, **kws):
    return foo_original(*args, **kws)

Of course, this assumes you want to do a 'from' import in the first
place, rather than the more common approach of referencing
'library.foo()' - if the latter, then it is monkeypatching you need.

ChrisA