Lab Practice Lists in Python

Lists in Python from python.org

Skill set for this LAB:

• Use Top-Down Design
• Lists and Functions
• Testing programs

Lab Practice

• Problem 1: In this program you will check the expiration year of the prodcuts and create a list of expired, about to expire and still good items. Write a program that reads a sequence of integers, each integer represents the expiration year. Store the data in one dimensional list. The program will ask to enter current year. The program then will check expiration dates on all items and create three different lists: expired (expiration year < current year), about_to_expire (items with the expiration year equals to current year), still_good. The program prints the sizes of each category and the values in each category.

• Problem 2: Write a program that generates a list of student's GPAs. Honors program requires GPA to be 3.5 or above. The program will create two new lists: Honors and Regular. Honors will include all GPA that are eligible for the Honors program and Regular will include the rest.

• Problem 3 Write a function def compare(list_a, list_b) that accepts two lists of integers. The function counts the number of odd numbers in the first list and the number of ODD numbers in the second list, and returns 1, if the first list has more odd numbers, -1 if the second list has more odd numbers, and 0 if both lists have the same amount of odd numbers. Write a main program that testing your functon: randomly generate the list of size 15, range of integers from -10 to 10

• Problem 4: Write a function def separate(grades) that has one parameter - list of grades in the class. The function creates and RETURNS 3 new lists - list of failing grades (grades below 60), list of A grades (90 and above) and the rest of the grades (between 60 and 89). Write a program that randomly generates the list of grades of size 15, calls function separate, and then prints THREE lists: failing grades, list of A grades, and the rest of the grades.

• Problem 5: Write a function def even_list(my_list) that has one parameter - list of integers. The function creates and returns TWO new lists: list of all even elements from my_list, and list of all positions of even elements in my_list Write main to test your program.

• Problem 6: Write a function that accepts two parameters - list of integers and additional value. Function counts the number of times the value appears in the list and returns the counter. Write the main program to test your function. Write main to test your function