Lab 10: Dictionaries

Points Possible: 100

Due: Thursday, November 7th

In this lab, we will write programs using Python dictionaries.

Submission:

Submit a Python file for each of the programs.

Program 1: Count Vowels

Write a function countVowel(vowel_string) that takes as input a string vowel_string and returns a dictionary with the vowel in vowel_string as key and corresponding count as value. The search should NOT be case-sensitive. Test your function by printing the dictionary returned from the function.

Sample run:

Enter a string of vowels: aeiouIUOaeio
{'a': 2, 'e': 2, 'i': 3, 'o': 3, 'u': 2}

Save the program is countvowels.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, input: 5 points, computation: 10 points, output: 5 points)
Total: 25 points

Program 2: Unique Values

Given a dictionary of lists, write a program that extracts unique values in the
list and print a new list of unique values.

Given:

{'Student 1': [100, 98, 97, 96], 'Student 2': [88, 97, 75, 100], 'Student 3': [98,
97, 96, 77]}

Output:

Unique items : [100, 98, 97, 96, 88, 75, 77]

Hint: First, iterate over each key of the dictionary, next iterate over each element of the list associated with that key.

for element in dict[key]:  # Here d[key] is a list.

Save the program is uniqueValues.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, input: 5 points, computation: 30 points, result: 5 points)
Total: 45 points

Program 3: Min Max Mean

Write a program that takes as input a list of numbers and prints a dictionary
that contains key-value pairs for – “Mean Value”,”Maximum Value” and
“Minimum Value”.

Sample run:

lst=[10,12,32,4]
d={"Mean Value":14.5,"Maximum Value":32,"Minimum Value":4}

Save the program is minMaxMean.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Headers and comments: 5 points, input: 5 points, computation: 15 points, result: 5 points)
Total: 30 points