Intro to Programming with Python - Tutorial 6 - Exercise 1

This is the solution to the exercise for the Intro to Programming with Python 6th tutorial covering lists.

The tutorial can be found here
https://youtu.be/2hdob7gw7r8

Exercise Description:
The exercise is to build a program that will do the following:
1 - Prompt the user to enter his/her four course names
2 - Print the course list back to the user
3 - Ask the user if they wish to change one of the courses (Yes, No)
4 - If they answer 'Yes':
    4.1 - Ask user which course number they wish to change (1,2,3,4)
    4.2 - Prompt the user to enter the new course name
    4.3 - Print the new course list to the user
5 - If they answer 'No':
    5.1 - Tell the user their course list did not change

Here is a sample output when you run the program you will create:

Bonus:
- Accept Y, Yes, yes, No, no, N
- Check if user entered less than 1 or more than 4 and if they did tell them they should enter only numbers from 1 to 4

Here is a sample output when you run the bonus version of the program:

Here is the solution to the exercise:

	# Remember lines starting with pound sign are comments
	# First prompt the user to enter his/her four courses
	c1 = input('Enter your first course: ')
	c2 = input('Enter your second course: ')
	c3 = input('Enter your third course: ')
	c4 = input('Enter your forth course: ')
	# Now create the list out of the four courses
	courses = [c1, c2, c3, c4]
	# Print the course list.
	print ('Your course list is: ', courses)
	# Ask the user if he/she wishes to change one of the courses
	changeCourse = input('Do you wish to change one of your courses(Yes/No)? ')
	# If user answers yes check which course
	if changeCourse == 'Yes':
	courseNumber = int(input('Which course do you want to change (1,2,3,4)? '))
	# Remember, we asked user to enter 1 to 4 so we have to subtract one
	index = courseNumber -1
	newCourse = input('Enter the new course name you wish to take: ')
	courses[index] = newCourse
	print('Your new course list is: ', courses)
	else:
	print('Your course list did not change')

view raw IntroPython_Tut06_Excercise1.py hosted with ❤ by GitHub

And here is the solution including the bonus checks:

	# Remember lines starting with pound sign are comments
	# First prompt the user to enter his/her four courses
	c1 = input('Enter your first course: ')
	c2 = input('Enter your second course: ')
	c3 = input('Enter your third course: ')
	c4 = input('Enter your forth course: ')
	# Now create the list out of the four courses
	courses = [c1, c2, c3, c4]
	# Print the course list.
	print ('Your course list is: ', courses)
	# Ask the user if he/she wishes to change one of the courses
	changeCourse = input('Do you wish to change one of your courses(Yes/No)? ')
	# If user answers yes check which course
	# Remember a string is a sequence so we can go changeCourse[0] to check first letter
	# so we check first character if it is a y in any case or a 1
	if changeCourse[0].upper() == 'Y' or changeCourse == '1':
	courseNumber = int(input('Which course do you want to change (1,2,3,4)? '))
	# We can have if blocks within if blocks
	# Check if user entered something less than 1 or more than 4
	if courseNumber < 1 or courseNumber > 4:
	print('Sorry but you must enter a number between 1 and 4')
	else:
	# Remember, we asked user to enter 1 to 4 so we have to subtract one
	index = courseNumber -1
	newCourse = input('Enter the new course name you wish to take: ')
	courses[index] = newCourse
	print('Your new course list is: ', courses)
	else:
	print('Your course list did not change')

view raw IntroPython_Tut06_Excercise_2.py hosted with ❤ by GitHub