# File:    tuThDicts.py
# Author:  Dr. Gibson
# Date:    11/8/2016
# Section: N/A
# E-mail:  k.gibson@umbc.edu 
# Description:
#   This file contains python code that creates a dictionary
#   from two lists, and performs some other operations as well.

def main():

    names  = ["Tina", "Pratik", "Amber"]
    majors = ["Social Work", "Pre-Med", "Art"]

    # create empty dictionary
    myMajor = {}

    # iterate over the indexes, not the contents
    for i in range(len(names)):
        # adding to a dictionary syntax:
        # myMajor["key"] = "value
        myMajor[ names[i] ] = majors[i]

    print("The created dictionary:")
    print("\t", myMajor)
    print()

    # use the items() method to access each key:value pair as a tuple
    print("The items in the dictionary as key:value pairs:")
    print("\t", list(myMajor.items()) )
    print()

    for item in list( myMajor.items() ):
        print("The item tuple:", item)
        # split the tuple into its two parts
        nam, maj = item
        print("The major chosen by", nam, "is", maj)


    # check student's majors
    print("\nUsing the optional argument in get() to set default as 99")
    print("Amber's major:", myMajor.get("Amber", 99) )
    print("Fitia's major:", myMajor.get("Fitia", 99) )



main()