[Python-Dev] Class decorators (original) (raw)

Jim Jewett jimjjewett at gmail.com
Sat Apr 1 00:01:54 CEST 2006

Nick Coghlan wrote:

[ much good, including the @instance decorator ]

P.S. If all you want is somewhere to store mutable state between invocations, you can always use the function's own attribute space

>>> def f(): print "Hi world from %s!" % f

>>> f()
Hi world from <function f at 0x00AE90B0>!

Not really. That assumes the expected name is (permanently) bound to this function in this function's globals. That's normally true, but not always, so relying on it seems wrong.

>>> f="a string"
>>> g()
Hi world from a string!

And of course, sometimes I really do want shared state, or helpers (like other methods on a class), or one-time ininitialization plus per-call parameters (like the send method on 2.5 generators), or ...

-jJ

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