Namespace problem?

[Mark Lawrence]

On 01/07/2010 22:30, Josh English wrote:
> I have a script that generates a report from a bunch of data I've been
> collecting for the past year. I ran the script, successfully, for
> several weeks on test runs and creating more detailed reports.
>
> Today (back from vacation) and the script doesn't work. It's giving me
> a name error.
>
> I'm running python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.
> 1310 32 bit (Intel)]. (Upgrading is not a possibility right now.
> Eventually we'll be upgraded top Windows 7.)
>
> Here is the reduced code:
>
> fws_first_col = 6

So fws_first_col is set to 6.

>
> for student in range(32):

student isn't used in the snippet below.

>
>      if True:

Isn't this always going to run?

>          idx = fws_first_col

Effectively set idx to 6 each time around the for loop.

>
>          for _month in range(12):
>              idx += 2

Add 24 to idx each time around the for loop.  24 + 6 == 30.

>          fws_last_col = idx

set fws_last_col to 30 each time around the for loop.

>
>
> print fws_last_col

prints 30 only once.

>
> I get:
>
> NameError: name 'fws_last_col' is not defined
>
> This snippet of code works on it's own, but not in the main script. I
> know it looks funny, but this should preserve the appropriate nesting
> of things.

Certainly doesn't look at all correct to me.

>
> Where else could I look to find this problem?

In a mirror? :)

Kindest regards.

Mark Lawrence.