traceback error try and except python3 code example

Example 1: python print error traceback

import traceback

try:
    raise TypeError("Oups!")
except Exception, err:
    try:
        raise TypeError("Again !?!")
    except:
        pass

    traceback.print_exc()

Example 2: python 3 except sys error info

1 import sys
   2 try:
   3   untrusted.execute()
   4 except: # catch *all* exceptions
   5   e = sys.exc_info()[0]
   6   write_to_page( "<p>Error: %s</p>" % e )