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            #!/usr/bin/python
            # Filename: func_doc.py


            def printMax(x, y):
                '''Prints the maximum of two numbers.

                The two values must be integers.'''

                x = int(x) # convert to integers, if possible
                y = int(y)

                if x > y:
                    print x, 'is maximum'
                else:
                    print y, 'is maximum'

            printMax(3, 5)
            print printMax.__doc__

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            ???

            $ python func_doc.py
            5 is maximum
            Prints the maximum of two numbers.

                    The two values must be integers.

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