buyLotsOfFruit.py

# buyLotsOfFruit.py
# -----------------
# Licensing Information: Please do not distribute or publish solutions to this
# project. You are free to use and extend these projects for educational
# purposes. The Pacman AI projects were developed at UC Berkeley, primarily by
# John DeNero (denero@cs.berkeley.edu) and Dan Klein (klein@cs.berkeley.edu).
# Student side autograding was added by Brad Miller, Nick Hay, and Pieter
# Abbeel in Spring 2013.
# For more info, see http://inst.eecs.berkeley.edu/~cs188/pacman/pacman.html

"""
To run this script, type

  python buyLotsOfFruit.py

Once you have correctly implemented the buyLotsOfFruit function,
the script should produce the output:

Cost of [('apples', 2.0), ('pears', 3.0), ('limes', 4.0)] is 12.25
"""

fruitPrices = {'apples':2.00, 'oranges': 1.50, 'pears': 1.75,
              'limes':0.75, 'strawberries':1.00}

def buyLotsOfFruit(orderList):
    """
        orderList: List of (fruit, numPounds) tuples

    Returns cost of order
    """
    totalCost = 0.0
    "*** YOUR CODE HERE ***"
    totalCost = sum([num*fruitPrices[fruit] for fruit, num in orderList])
    return totalCost

# Main Method
if __name__ == '__main__':
    "This code runs when you invoke the script from the command line"
    orderList = [ ('apples', 2.0), ('pears', 3.0), ('limes', 4.0) ]
    print 'Cost of', orderList, 'is', buyLotsOfFruit(orderList)