Loops

Earlier, on Python with Pets

Here's a goats' scores data set we've been using, with errors removed.

We're going to add validation loops to the tip program. It's a topic that confuses some people.

Ray

Uh oh.

Don't worry, we'll take it easy. Let's start with a simple task.

while practice, and an exercise.

Practice

Reminder

A while loop has the form:

condition is either true or false, just like an if uses. Python will keep doing action while condition is true.

We saw loops using string variables in the condition:

Keep asking the user until they enter something valid.