generator expression works in shell, NameError in script

greg greg at
Fri Jun 19 06:20:55 CEST 2009

ssc wrote:

> class SignupForm(Form):
>     titles = ['Dr', 'Miss', 'Mr', 'Mrs', 'Ms',]
>     title_choices   = [(0, '')] + list((titles.index(t)+1, t) for t in
> titles)
> Does the generator expression have its own little namespace or so ?

Yes. The generator expression is a function, with its
own local namespace. Since the class scope is not visible
from inside functions declared within it, the behaviour
you're seeing results.


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