# Python's built-in map(function, list ) function applies a 
# function to a list of values. If you're thinking: 'hey, 
# that sounds like a for loop', you're correct. FP eschews 
# using transient variables as counters in favor of constructs 
# like map( )

import string

def toUpper(x):
    return string.upper(x)

namelist = ['xavier', 'jean grey', 'cyclops', 'frost']

mappableFunction = lambda x: string.upper(x)

s = "hello"
print string.upper(s)

print map(mappableFunction, namelist)
print map(toUpper, namelist)