[Python-Dev] Advice in stat.py
Fred L. Drake, Jr.
Mon, 30 Jul 2001 01:23:39 -0400 (EDT)
Aahz Maruch writes:
> If you have a single module that imports all four of these (and I don't
> think that's particularly bizarre), tracing back any random symbol to
Only if you import-* them all, and that *is* a pathelogical case.
Any time you import-* *two* modules, you have a pathelogical case on
your hands, just ready to explode.
> It just plain goes against "explicit is better than implicit". I think
> we should declare a universal policy of NEVER recommending import *,
> except for interactive use.
I'd be willing to give it up even there, esp. now that we have
> There are often good reasons to use import-* at the module global
> level. Mailman has two places where this is used effectively. The
> more interesting place is in a configuration file called mm_cfg.py.
> This file is where users are supposed to put all their customizations
> overriding out-of-the-box defaults. At the top of the file there's a
This is about the only kind of thing I've ever found it useful for:
re-implementing a module's interface, but when I only want to change a
few things. Needing to do this never feels like a good solution, and
probably indicates that some object needs to accept a parameter that
offers the module's interface instead of finding it by name.
So yeah, I'd give up import-*.
Fred L. Drake, Jr. <fdrake at acm.org>
PythonLabs at Zope Corporation