Documentation officielle de Python

9.5.3 Exceptions

Exceptions in this module are coded as class instances:

exception Error: The base exception class. Error has a single public data member msg containing the description of the error.

exception ConversionError: Class derived from Error. Contains no additional instance variables.

Here is an example of how you would catch one of these exceptions:

import xdrlib
p = xdrlib.Packer()
try:
    p.pack_double(8.01)
except xdrlib.ConversionError, instance:
    print 'packing the double failed:', instance.msg

See About this document... for information on suggesting changes.