CP103: Assignment 07 - Winter 2025

Due 8:30 AM, Monday, March 17, 2025

Tasks

Create a project folder username_a07. Place all your tasks python files(t01.py , t02.py ,t03.py) and the testing file testing.txt inside this folder. Upon completing your tasks, export your project folder to username_a07.zip file, validate it, and submit it to the dropbox by the due date.

Write and test the following function:
```
        
def list_factors(num):

      
```
Add the function to a PyDev module named functions.py. Test it from .

list_factors takes an integer greater than 0 as a parameter (num) and returns a list of the factors that make up that number excepting the number itself. An integer's factors are the whole numbers that the integer can be evenly divided by.

For example, the factors of 6 are 1, 2, and 3 because 6 can be evenly divided by all these numbers.

Determine even division with the modulus (%) operator. The modulus operator returns the remainder of an integer division. Example: 6 % 3 → 0.

The function does not ask for input and does no printing - that is done by your test program.

Provide the function docstring (documentation) following the CP104 style.

Sample execution:
```
        
list_factors(9)
      
```
```
[1, 3]
```
```
        list_factors(97)
      
```
```
[1]
```
Test the function with three different sets of parameters.

Partial testing:

Test functions.py:

Results

Write and test the following function:

        
def list_positives():
    """
    -------------------------------------------------------
    Gets a list of positive numbers from a user.
    Negative numbers are ignored. Enter 0 to stop entries.
    Use: numbers = list_positives()
    -------------------------------------------------------
    Returns:
        numbers - A list of positive integers (list of int)
    ------------------------------------------------------
    """

Add the function to a PyDev module named functions.py. Test it from .

Sample execution:

        list_positives()

Enter a positive number: 5
Enter a positive number: 7
Enter a positive number: 2
Enter a positive number: -7
Enter a positive number: -2
Enter a positive number: 0

and returns:

[5, 7, 2]

Test the function with three different sets of inputs.

Partial testing:

Results

Write and test the following function:

        
def subtract_lists(minuend, subtrahend):
    """
    -------------------------------------------------------
    Updates the list minuend removing from it the values in subtrahend.
    i.e. the values in the first list that appear in the second list
    are not included in the updated list.
    subtrahend is unchanged
    Use: subtract_lists(minuend, subtrahend)
    -------------------------------------------------------
    Parameters:
        minuend - a list of values (list)
        subtrahend - a list of values to remove from minuend (list)
    Returns:
        None
    ------------------------------------------------------
    """

Add the function to a PyDev module named functions.py. Test it from .

Hint: you may use list_indexes in the function to solve the problem.

The function does not ask for input and does no printing - that is done by your test program.

Sample execution:

        
subtract_lists([1, 3, 5], [])

None

minuend after:

[1, 3, 5]

        subtract_lists([1, 3, 5, 2, 4, 6], [3, 4])

None

minuend after:

[1, 5, 2, 6]

Test the function with three different sets of parameters.

Use list_positives in your testing to get numbers from the user.

Partial testing:

Results

Partial testing of functions.py:

Results

Partial testing of testing.txt:

Results