Short Project 8

Counting Names

In this lab session, you will be using starter code which contains a function to read a file that contains names and numbers separated by comma (a csv or comma separated file). The function that reads the file and returns a list is already implemented for you. You also need to download the text file with the data to run your code (make sure your .py file and your .txt file are in the same folder, and that you have the folder open on VS code)

You are to implement three other functions:

  • count_names that takes as argument a list of strings that could be converted to integers, floats, or are just names and returns a dictionary of only the names as keys, and counts as values
  • find_name that takes as argument the dictionary you returned from the previous function, and a string representing a name. This function returns two types of message (string) depending on whether the name argument is a key in the counts dictionary:
    • The name X occurs N times.
    • X not found.
  • get_most_common_name that takes as argument the dictionary of name counts, and returns a string with a message: The name X occurs N times.

Here are some test cases:

my_list = read_file("names_and_numbers.txt")
my_counts = count_names(my_list)
print( my_counts )
{'Ian': 7, 'Joseph': 17, 'Hunter': 7, 'Javier': 8, 'Emily': 11, 'Michael': 30,
 'Daniel': 16, 'Cole': 5, 'Kolbe': 4, 'Wang': 4, 'Kim': 5, 'Justin': 4, 
 'Paul': 5, 'Zach': 6, 'Renee': 4, 'Tucker': 5, 'Jacob': 22, 'Alan': 8, 
 'William': 23, 'Gabriel': 5, 'Singh': 9, 'Elliott': 5, 'Kumar': 5, 
 'Richard': 8, 'Max': 5, 'Reddy': 6, 'Claire': 4, 'Jake': 9, 'Robert': 12, 
 'Rose': 12, 'James': 31, 'Austin': 6, 'Aidan': 12, 'Joshua': 7, 'Chase': 9, 
 'Noah': 13, 'Isaac': 10, 'Scott': 7, 'Antonio': 6, 'Steven': 5, 'Emma': 9, 
 'Olivia': 4, 'Anthony': 12, 'Adriana': 4, 'Anna': 5, 'Lee': 13, 'Howard': 5, 
 'Shane': 4, 'Alexander': 17, 'Alex': 14, 'Megan': 5, 'Jesus': 5, 'Dev': 4, 
 'Eduardo': 8, 'Stephen': 5, 'David': 23, 'Ali': 6, 'Tran': 4, 'Jeremy': 5, 
 'Samuel': 7, 'Christopher': 7, 'Noel': 5, 'Ethan': 18, 'Lawrence': 4, 
 'Andrew': 26, 'Grace': 8, 'John': 17, 'Nate': 5, 'Taylor': 5, 'Jose': 11, 
 'Colin': 4, 'Thomas': 17, 'Sai': 4, 'Logan': 5, 'Tanner': 4, 'Aiden': 4, 
 'Lauren': 5, 'Connor': 7, 'Alejandro': 7, 'Nicole': 5, 'Ahmed': 5, 'Elise': 4, 
 'Jessica': 4, 'Rene': 6, 'Garcia': 7, 'Abel': 4, 'Hernandez': 4, 'Martinez': 9, 
 'Luke': 9, 'Andre': 7, 'Andres': 4, 'Gavin': 5, 'Mark': 10, 'Cameron': 4, 
 'Josh': 9, 'Victor': 4, 'Marie': 17, 'George': 4, 'Lucas': 7, 'Yan': 4, 
 'Dylan': 11, 'Will': 6, 'Brian': 5, 'Julian': 5, 'Drew': 4, 'Jordan': 11, 
 'Luis': 11, 'Ashley': 4, 'Diego': 11, 'Tyler': 11, 'Henry': 5, 'Elizabeth': 14, 
 'Sofia': 4, 'Matthew': 15, 'Williams': 7, 'Riley': 5, 'Lynn': 7, 'Ryan': 16, 
 'Al': 7, 'Allen': 5, 'Mason': 7, 'Carlos': 6, 'Sebastian': 4, 'Smith': 6, 
 'Charles': 8, 'Patrick': 8, 'Adrian': 9, 'Nathan': 11, 'Brandon': 8, 'Nick': 5, 
 'Derek': 5, 'Abdullah': 5, 'Zachary': 5, 'Edward': 5, 'Jean': 5, 'Sam': 9, 
 'Angel': 5, 'Chris': 6, 'Michelle': 6, 'Wayne': 4, 'Mohammed': 6, 'Trevor': 4, 
 'Jason': 9, 'Alec': 4, 'Li': 8, 'Martin': 4, 'Tiffany': 5, 'Peter': 6, 
 'Jack': 9, 'Maurice': 4, 'Elijah': 6, 'Ben': 9, 'Sean': 5, 'Anne': 4, 
 'Nguyen': 4, 'Eric': 5, 'Adam': 4, 'Xavier': 4, 'Chen': 4, 'Adnan': 4, 
 'Ava': 5, 'Caleb': 5, 'Sophia': 5, 'Hayden': 4, 'Paige': 6, 'Victoria': 4, 
 'Angelina': 4, 'Jasmine': 4, 'White': 4, 'Isaiah': 6, 'Soto': 5, 'Vivian': 4, 
 'Evan': 6, 'Jackson': 4}

my_list = read_file("names_and_numbers.txt")
my_counts = count_names(my_list)
print( len(my_counts) )
174

my_list = read_file("names_and_numbers.txt")
my_counts = count_names(my_list)
print( find_name(my_counts, "Adriana") )
The name Adriana occurs 4 times.

my_list = read_file("names_and_numbers.txt")
my_counts = count_names(my_list)
print( find_name(my_counts, "Maria") )
Maria not found.

my_list = read_file("names_and_numbers.txt")
my_counts = count_names(my_list)
print( get_most_common_name(my_counts) )
The name James occurs 31 times.
Before You Begin

This section gives you a quick recap of what we covered in class or introduces any new tips or examples that might help you complete the assignment. Take a few minutes to read through it before you begin.

How do we know a string is a number?

Assume that for both short project 07 and programming project 07 you won’t have strings that mix digits (for example 0 and 9) and letters (for example a and x)

How do we know the following strings are names vs. numbers (integers or floats)?

  • "Petra"
  • "10.5"
  • "5"

Check first character of a string

Remember that you can retrieve the first character of a string using [0]

name = "Petra"
name[0].isnumeric()
False
number = "0.10"
number[0].isnumeric()
True
number = "10"
number[0].isnumeric()
True