Can I check if I'm running from the interpreter prompt?

[Peter Otten]

skip at pobox.com wrote:

> Is there a reliable way (this is on Solaris if that matters) to tell if
> I'm
> running in the interactive interpreter as opposed to in a script?  I think
> examining sys.argv works, but wanted to double check.

hasattr(sys, "ps1")

http://www.python.org/doc/2.5.2/lib/module-sys.html#l2h-5167

"""
ps1
ps2
 Strings specifying the primary and secondary prompt of the interpreter.
These are only defined if the interpreter is in interactive mode. 
"""