Posted By

ManishChandraReddy on 12/13/15


error Handling

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Try Except Else

 / Published in: Python


The try ... except statement has an optional else clause, which, when present, must follow all except clauses. It is useful for code that must be executed if the try clause does not raise an exception. For example:

  1. for arg in sys.argv[1:]:
  2. try:
  3. f = open(arg, 'r')
  4. except IOError:
  5. print 'cannot open', arg
  6. else:
  7. print arg, 'has', len(f.readlines()), 'lines'
  8. f.close()

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