Questions

Signature Writing

The following questions will have you practice signature writing.

1. Write the signature for a function called name_eval that takes as input someone’s name as a string and returns True if the name has an even amount of letters and False if it has an odd amount of letters.

2. Write the signature for a function called name_size that takes as input someone’s name as a string and returns the length of their name as an integer.

3. Write the signature for a function called gcd that takes two floats as input and returns the integer that is their greatest common divisor.

solutions

Complete the function definition

1. Line 2 belongs within the body of a function. Add a line of code that will complete the entire function definition.

    
        return x * 2

    print(double(x=3))

2. Line 2 belongs within the body of a function. Add a line of code that will complete the entire function definition. The function’s name is my_string.

    
        return "This is my word, " + word

3. Line 2 belongs within the body of a function. Add a line of code to complete the entire function definition. The function’s name is my_num and word is a float.

    
        print("This is my number, " + str(word))

Solutions

Signature Writing Solutions

1. def name_eval(id: str) -> bool:

(Note that I chose to call the parameter id, but you could’ve chosen any valid name!)

2. def name_size(id: str) -> int:

(Note that I chose to call the parameter id, but you could’ve chosen any valid name!)

3. def gcd(number_a: float, number_b: float) -> int:

(Note that I chose to call the parameters number_a and number_b, but you could’ve chosen any valid name!)

Complete the function definition

1. Complete function definition

    def double(x: int) -> int:  # Added this line
        return x * 2

    print(double(x=3))

2. Complete function definition

    def my_string(word: str) -> str:  # Added this line
        return "This is my word, " + word

3. Complete function definition

    def my_num(word: float) -> None:  # Added this line
        print("This is my number, " + str(word))