Hi
Please take a look at
class ShortInputException(Exception): #QUESTION: Why do I have to inherit from the "Exception" class?
def __init__(self, length, atleast):
Exception.__init__(self) #QUESTION: Why do I have to add this?
self.length = length
self.atleast = atleast
try:
s = raw_input('Enter something --> ')
if len(s) < 3:
raise ShortInputException(len(s), 3)
except EOFError, object_EOF: #QUESTION: How do I find the data variables of object_EOF?
print '\nWhy did you do an EOF on me?'
except ShortInputException, object_SIE:
print 'ShortInputException: The input was of length %d, \
was expecting at least %d' % (object_SIE.length, object_SIE.atleast)
Ok, so I have three questions, both shown in the above code. I have the above example from "Byte of Python":
1) Why do I have to inherit from the exception-class in order to create my own exceptions? I mean, what parameters are inherited that I cannot create myself?
2) Why do I have to call the constructor of the Exception class?
3) I have included the saving of the error object in object_EOF, but how do I find out what data/methods object_EOF contains?
Thanks.
Best,
Niles.