func_doc.py

《python编程金典》书中

#!/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(6, 5)
print printMax.__doc__
help(printMax)