Catching class exceptions
Simon Foster
simon at uggs.demon.co.uk
Sun Nov 12 15:42:19 EST 2000
I,m trying to catch the GetoptError class exception using code like
the code below. This is basically a 'cut-and-paste' from the
documentation for getopt:
import getopt, sys
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "ho:", ["help",
"output="])
except getopt.GetoptError:
# print help information and exit:
print 'Getopt exception caught'
# usage()
sys.exit()
output = None
for o, a in opts:
if o in ("-h", "--help"):
usage()
sys.exit()
if o in ("-o", "--output"):
output = a
# ...
if __name__ == "__main__":
print 'Entering main...'
main()
When I run this program I get :
Entering main...
Traceback (most recent call last):
File "C:\Program
Files\Python20\Pythonwin\pywin\framework\scriptutils.py", line 301, in
RunScript
exec codeObject in __main__.__dict__
File "H:\bin\getoptions.py", line 22, in ?
main()
File "H:\bin\getoptions.py", line 6, in main
except getopt.GetoptError:
AttributeError: GetoptError
>>>
What am I doing wrong? Is there a special syntax for class errors? Is
the documentation for the getopt module out of date?
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