Where is my namespace?

[Aahz]

In article <00a7037c$0$15659$c3e8da3 at news.astraweb.com>,
Steven D'Aprano  <steve at REMOVE-THIS-cybersource.com.au> wrote:
>> 2009/12/7 vsoler <vicente.soler at gmail.com>:
>>>
>>> 3. Mark says: The from statement is really an assignment to names in
>>> the importer's scope--a name-copy operation, not a name aliasing. Â  I
>>> don't fully understand what he means. Could anybody explain?
>
>I'm not sure what Mark means by that either. It certainly isn't a copy 
>operation, it doesn't duplicate the object you imported. I don't know 
>what he means by aliasing, but if he means what I mean by aliasing, then 
>I'd say the from statement *is* an aliasing operation: it creates a new 
>name that refers to an existing object found by name.
>
>from module import name
>
>is roughly equivalent to:
>
>import module
>name = module.name
>del module

The reason why Mark made his comment (although I think it needs some
rephrasing):

import module
from module import name
name = 'foo'
print module.name is name

(Of course this is all completely obvious to anyone who understands
Python's name/binding semantics, but someone just learning about module
imports is probably not in that category and needs some kind of warning
about re-assigning names created by ``from ... import``.)
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

Looking back over the years, after I learned Python I realized that I
never really had enjoyed programming before.