Finding out that Python is in interactive mode in sitecustomize.py

[Joonas Paalasmaa]

Carey Evans <careye at spamcop.net> wrote in message news:<87g05wgq84.fsf at psyche.dnsalias.org>...
> Joonas Paalasmaa <joonas at olen.to> writes:
> 
> > How can I find out that Python is started in interactive mode in
> > sitecustomize.py ?
> 
> A search on http://groups.google.com/ for "python test interactive"
> comes up with this as the second result:
> 
>     import sys
>     if hasattr(sys, "ps1"):
>         # probably interactive
>     else:
>         # probably not interactive

For some reason it doesn't work in sitecustomize.py .
When these lines are to sitecustomize.py and Python is started in
interactive mode, Python prints "In non-interactive mode".

# the lines
import sys
if hasattr(sys, "ps1"):
    print "In interactive mode"
else:
    print "In non-interactive mode"