How to raise to throw an exception

Throw an exception

We can use raise statement to throw an exception out of a function.

Raise error from function

import sys#  w  w  w .j a v a 2 s.com

def excFunc() :
    raise ValueError

try:
    excFunc()
except:
    print "Got an exception"
    print sys.exc_info()

The code above generates the following result.