(:source lang=python:)

"""Compute the absolute value of a number"""

1. here is a faulty version of a function for computing the absolute
2. value of a number.
3. what is the problem?

def faulty_absolute_value(x):

    if x < 0:
        return -x
    elif x > 0:
        return x

1. here's a version that does the right thing:

def absolute_value(x) :

    if x < 0 :
        return -x
    else :
        return x

(:sourceend:)