10.12. Exceptions and the sys Module
An alternative way of obtaining exception information is by accessing the exc_info() function in the sys module. This function provides a 3-tuple of information, more than what we can achieve by simply using only the exception argument. Let us see what we get using sys.exc_info():
>>> try: … float('abc123') … except: … import sys … exc_tuple = sys.exc_info() … >>> print exc_tuple (<class exceptions.ValueError at f9838>, <exceptions.ValueError instance at 122fa8>, <traceback object at 10de18>) >>> >>> for eachItem in exc_tuple: … print eachItem … exceptions.ValueError invalid literal for float(): abc123 <traceback object at 10de18>
What we get from sys.exc_info() in a tuple are:
exception class object
(this) ...
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