Using other loops and conditionals

Python offers a variety of ways to iterate through information in addition to the for loop. One of the most commonly used loops is a while loop. When using a while loop, we’re checking for a condition constantly. Again, it’s easier to understand this by looking at an example.

Let’s say we are playing a game and ask the user to provide as many animals as they can. We want to be able to do a few things:

1. Check whether the player has animals to add.
2. If yes, append each animal to a list.
3. If no, end the program and provide the final list.
4. Provide the final list and a count of how many animals the player was able to enter.

Let’s take a look at an algorithm that does the basics for this game:

ch11_whileLoop1.py

myAnimals = []
print('Let\'s see how many animals you can name. Get ready!')
readyPlayer = input('When you are ready to begin, type y. ')
while readyPlayer ==...