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Mad Libs

For this assignment we will use Python 3's open() and readline() functions to read in a blank MadLib. Then we will use the input() function to ask the user for words from a particular part of speech (e.g. noun, adjective, verb, etc). Finally we'll use Python's replace() function to replace the blanks with user input. You may find the website How to create a Mad Libs game in Python and slides ~168 - ~179 of the Computer Programming B slide presentation helpful.

Program requirements

  1. Your Mad Libs program must use at least two files: A Python file with the program code and a seperate text file with a blank mad lib.
  2. Your blank Mad Lib must be at least 5 lines long and have 3 or more parts of speech.
  3. Your program will need a loop to go through the blank Mad Lib one line at a time replacing the blanks

Suggested steps to starting the assignment

  1. For this assignment we will have two files:

    • a text (.txt) file with the blank Mad Lib
    • a Python file (.py) with the Python code that reads in the blank file and displays the modified version with user input

  2. Let's start with the text file. Create a text file with your blank Mad Lib. You can use the following Old Macdonald lyrics, Afraid Of The Dark, Spooky Stuff, Talk Like A Pirate or make up your own. (Note that the blanks in the Mad Lib are marked with all caps like NOUN)

ADJECTIVE Macdonald had a NOUN, E-I-E-I-O
and on that NOUN he had an ANIMAL, E-I-E-I-O
with a NOISE NOISE here
and a NOISE NOISE there,
here a NOISE, there a NOISE,
everywhere a NOISE NOISE,
ADJECTIVE Macdonald had a NOUN, E-I-E-I-O.
  1. Give the file a meaningful name like MadLibs.txt
  2. Now we'll start writing the Python program
  3. Add the following code to your Python program (the .py file) that opens the text file and assigns it to a variable:
f = open('MadLibs.txt','r')
madlibText = f.readlines()
print(madlibText)
  1. Run the program. You should see output like:
['ADJECTIVE Macdonald had a NOUN, E-I-E-I-O\n', 'and on that NOUN he had an ANIMAL, E-I-E-I-O\n', 'with a NOISE NOISE here\n', 'and a NOISE NOISE there,\n', 'here a NOISE, there a NOISE,\n', 'everywhere a NOISE NOISE,\n', 'ADJECTIVE Macdonald had a NOUN, E-I-E-I-O.\n', '\n']
  1. madlibText is a list. Each item in the list is a line from the text file.
  2. Now we need to add code to get user input for each part of speech that is marked in all caps. In the example text there are:
    • ADJECTIVE
    • NOUN
    • ANIMAL
    • NOISE
  3. Here's some sample code we could use for user input:
noun = input("Enter a noun: ")
print(noun)
  1. Now we'll use Python's replace() function to replace the blank NOUN in the first line of madlibText. Change the print to
line = madlibText[0].replace("NOUN",noun)
print(line)
  1. Now create a loop to go through each line in madlibText and change every occurance of the blank Noun
  2. Finally, add more user input for the other parts of speach and replace those as well

This assignment is based on an assignment at Te@ch with ICT