I'm writing a (very simple) command line window for use within my
Tkinter GUI menu driven program (Aside: I want to provide a Matlab
like command line capability within an otherwise menu driven
program ... but where the script language is Python). The guts of
executing the command are (where commandtext is a text variable
captured from my command line window)
try:
exec(commandtext)
except:
print 'failed to execute command' # we'll do something
more sophisticated in due course
The question is if commandtext contains invalid python I thought exec
raised an exception that I could capture. I seem unable to get this
to throw an exception no matter what is in commandtext. I assume I'm
missing something simple here.
Alternatively should I open a process with popen ... I want to be
able to modify variables in the existing scope and the way I read
popen I can't do that.
====================================================================
Prof Garry Willgoose,
Australian Professorial Fellow in Environmental Engineering,
Director, Centre for Climate Impact Management (C2IM),
School of Engineering, The University of Newcastle,
Callaghan, 2308
Australia.
Centre webpage: www.c2im.org.au
Phone: (International) +61 2 4921 6050 (Tues-Fri AM); +61 2 6545 9574
(Fri PM-Mon)
FAX: (International) +61 2 4921 6991 (Uni); +61 2 6545 9574 (personal
and Telluric)
Env. Engg. Secretary: (International) +61 2 4921 6042
email: [EMAIL PROTECTED];
[EMAIL PROTECTED]
email-for-life: [EMAIL PROTECTED]
personal webpage: www.telluricresearch.com/garry
====================================================================
"Do not go where the path may lead, go instead where there is no path
and leave a trail"
Ralph Waldo Emerson
====================================================================
_______________________________________________
Tutor maillist - [email protected]
http://mail.python.org/mailman/listinfo/tutor
