[Zope] python question

[Fred Drake]

On 7/1/05, Jürgen Herrmann <Juergen.Herrmann at xlhost.de> wrote:
> i think there should be no functional difference in the two code snippets
> below, but is there any difference in performance?

Don't know, and don't care; these are (at the Python level)
functionally different.

> (i know, the "except AttributeError" could possibly mask an AttributeError
> in the called function...)

Exactly.  Shouldn't be a real issue in a released version, but better
safe than sorry.

> 1.:
> hook = getattr(o, '_before_transaction_commit', None)
> if hook: hook()

Better yet:

 hook = getattr(o, '_before_transaction_commit', None)
 if hook is not None: hook()


  -Fred

-- 
Fred L. Drake, Jr.    <fdrake at gmail.com>
Zope Corporation