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#!/usr/bin/python
#
# Python functions start with def. They take parameters, which are
# un-typed, as other variables.
# The string at the start of the function is for documentation.
def prhello():
"Print hello"
print "Hello, World!"
prhello()
#
#
def prlines(str, num):
"Print num lines consisting of str, repeating str once more on each line."
for n in range(0,num):
print str * (n + 1)
prlines('z', 5)
print
prlines('fred ', 4)
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