Revision: 54396
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at December 22, 2011 03:58 by andrewjsledge
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# Suppose you have a list of people's first names. You want to reduce the list down to only those people whose first names start with "C".
people = ['Amy', 'Alice', 'Bobby', 'Charlie', 'Connie', 'David']
# You would create a callback function that would look something like this:
def starts_with_c(name):
if name[0] == "C":
return True
return False
# So then, you would run the filter function
starts_with_c_list = filter(starts_with_c, people)
print starts_with_c_list
# prints ['Charlie', 'Connie']
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Shows usage of the Python filter() function
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Python filter() function usage
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data, filter
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Python