Python 2.4.5 (#2, Mar 12 2008, 00:15:51)
[GCC 4.2.3 (Debian 4.2.3-2)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> try:
... exec("raise ValueError")
... except:
... print "raised some exception"
... import sys
... print sys.exc_info()
...
raised some exception
(<class exceptions.ValueError at 0xb7d83b3c>, <exceptions.ValueError instance
at 0xb7d6738c>, <traceback object at 0xb7d65aa4>)
>>> Something like this? Andreas Am Dienstag, den 08.04.2008, 17:12 +1000 schrieb Garry Willgoose: > 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 - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor
signature.asc
Description: Dies ist ein digital signierter Nachrichtenteil
_______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
