imported var not being updated

[Benjamin Kaplan]

On Tue, Mar 9, 2010 at 9:18 AM, John Posner <jjposner at optimum.net> wrote:

> On 3/8/2010 11:55 PM, Gary Herron wrote:
> <snip>
>
>
>> The form of import you are using
>> from helpers import mostRecent
>> makes a *new* binding to the value in the module that's doing the
>> import.
>>
>
> <snip>
>
>
>  What you can do, is not make a separate binding, but reach into the
>> helpers module to get the value there. Like this:
>>
>> import helpers
>> print helpers.mostRecent
>>
>>
> Gary, are you asserting that in these separate situations:
>
> one.py:
>
>  from helpers import mostRecent
>  x = mostRecent
>
> two.py:
>
>  import helpers
>  x = helpers.mostRecent
>
>
> ... the name "x" will be bound to different objects?
>
> Tx,
> John
>
>
No. the name x will be bound to the same object. It's the other way that
gives a problem

from helpers import mostRecent

works like

import helpers
mostRecent = helpers.mostRecent
del helpers

so when you do

mostRecent = x

it rebinds "mostRecent" in the current scope but doesn't affect
helpers.mostRecent, the name in the "helpers" module.


> --
> http://mail.python.org/mailman/listinfo/python-list
>
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