Graphics Entry problem
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ajf1703
May 18, 2009, 9:39:04 PM5/18/09
to Charlotte Python Group
I need to know specifically how to word my program so that when an
Entry value is invalid (aka not a number) the program won't crash but
instead just ask for another entry
Thank You
Entry value is invalid (aka not a number) the program won't crash but
instead just ask for another entry
Thank You
Calvin Spealman
May 19, 2009, 7:06:13 AM5/19/09
to cha...@googlegroups.com
value = input_raw("What is the number?")
while not isinstance(value, int):
try:
value = int(value)
except ValueError:
value = input_raw("What is the number?")
In other words, get the text input, and then keep trying to convert it
to an int while asking for input again if that conversion fails. Stop
trying this when `value` is seen to be an integer.
--
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while not isinstance(value, int):
try:
value = int(value)
except ValueError:
value = input_raw("What is the number?")
In other words, get the text input, and then keep trying to convert it
to an int while asking for input again if that conversion fails. Stop
trying this when `value` is seen to be an integer.
Read my blog! I depend on your acceptance of my opinion! I am interesting!
http://techblog.ironfroggy.com/
Follow me if you're into that sort of thing: http://www.twitter.com/ironfroggy
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