Homework 6a — Mutability

1. Better Word Count

Write a program in better_word_count.py that takes one argument:

• an input file name

and prints out a dictionary showing how many words of each word length were found. The program provides counts for all word lengths from 1 to 20.

We have provided you with an example file in words.txt:

cat catch snooze seven pearl
concatenate silliness you
fireplace it cornered me

When you run the program, it should create this output:

python solutions/better_word_count.py words.txt
{1: 0, 2: 2, 3: 2, 4: 0, 5: 3, 6: 1, 7: 0, 8: 1, 9: 2, 10: 0, 11: 1, 12: 0, 13: 0, 14: 0, 15: 0, 16: 0, 17: 0, 18: 0, 19: 0, 20: 0}

We have also given you some text in 1Nephi.txt that you can use as a test file.

Tip

• Consider using range() to create keys for the dictionary and set the initial counts to zero.

• Remember to strip punctuation: from string import punctuation. The test files are written using the punctuation found in punctuation.

2. Picture Board

Write a program in picture_board.py that lets you put emojis into a picture board. The picture board has 5 available positions (identified by the indexes 0-4). The program should:

• display the pictures
• prompt you for a slot and picture
• update the picture board

This repeats until you enter an empty string for the slot.

Follow this input and output carefully:

['', '', '', '', '']

Slot: 0
Pic: ⭐️
['⭐️', '', '', '', '']

Slot: 3
Pic: 🦆
['⭐️', '', '', '🦆', '']

Slot: 2
Pic: 🐟
['⭐️', '', '🐟', '🦆', '']

Slot: 0
Pic: 🚗
['🚗', '', '🐟', '🦆', '']

Slot:

Tip

Consider initializing your board (using a list) before your input loop:

pics = ['', '', '', '', '']

Tests

Be sure you can pass the tests before you turn in the assignment. Review the guide on using pytest if you need to review using pytest and what to do if a test fails.

Grading

Manual grading will focus on decomposition, fluency, and use of mutable lists and dictionaries.