[Python-Dev] Re: Activating `-i' from inside a script?

[Thomas Heller]

Skip Montanaro <skip@pobox.com> writes:

> On c.l.py someone asked about forcing a tailend interactive shell from
> within the program.  Try Melhase proposed:
>
>     import os
>
>     if __name__ == '__main__':
>         discrepancy = True
>         if discrepancy:
>             os.environ['PYTHONINSPECT'] = "why yes, i'd like that"
>
> but observed that it doesn't work because the environment variable is only
> checked at program start.
>
> This change to Modules/main.c makes the above work:
[...]
>
> Any chance this could be squeezed in?  It seems rather elegant:
>
>     try:
>         something which fails
>     except:
>         os.environ["PYTHONINSPECT"] = 1
>         raise
>
> (I know we're at beta1, and the programmer could re-run with -i.  But
> still...)
>

For a different approach to the same (?) problem see

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/65287

Thomas