mark jason wrote:
On Dec 10, 11:55 am, Steven D'Aprano <steve
+comp.lang.pyt...@pearwood.info> wrote:
# By the way, IOError is not the only exception you could see.
thanks for the help Steven. Is it OK to catch Exception instead of
IOError ?
In some operation which can cause many errors ,can I use the
following?
try:
do_something()
except Exception,e:
display_message(e.args)
handle_exception(e)
thanks,
mark
You shouldn't.
If you want to handle an exception, you need to know about it. What if
your handle_exception meets some exception it does not know how to handle ?
People are sometimes using bare try except clause to say 'look ! my
function never crash !'. True but it usually has an unpredictable
behavior upon exception being raised, and that is much worse that a
clean uncought exception.
What you can do :
try:
do_something()
except IOError:
# handler IOerror
except KeyboardInterrupt:
print 'stopping...'
sys.exit(0)
except NotImplementedError:
# handler missing implementation
Everything else should be kept uncought.
JM
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