What's with the underscore(_) ????

[sismex01 at hebmex.com]

> From: Alfredo P. Ricafort [mailto:alpot at mylinuxsite.com]
> Sent: Thursday, December 05, 2002 7:24 AM
> 
> Hi,
> 
> Look at the following codes:
> 
> # file s1.py
> import gettext
> f=gettext.gettext
> _=gettext.gettext
> 
> 
> # file test.py
> from s1 import *
> 
> print f('Hello')
> print _('Hello')
> 
> Please explain to me why the 2nd print would fail with an error
> 'NameError: name '_' is not defined'.
> 
> Tks.
> 
> 
> AL
>

Because, according to the docs, any identifier starting with "_"
in a module imported via "from <module> import *" doesn't get
imported.

This is to allow for "private" identifiers, elements which are
implementation-specific, or anything which you (as the module
creator) don't want to expose.

-gustavo