Repeat Yourself
Learn how to use loops to repeat code.
What if we wanted to plant 10 trees, send 5 reminders, or greet each student in a list without copying the same line of code repeatedly?
Instead of repeating the same line over and over, Python lets us loop through actions with just a few lines!
for loops: Do it a set number of times
A for loop lets us repeat actions a specific number of times, saving time and keeping our code clean and powerful. It is perfect for when we know how many times we want something to run.
Press + to interact
Looping over a piece of code
Try this:
Press + to interact
for i in range(5):print("Hello!")
In this example, Python repeats the line five times.
In
for i in range(5):, the colon (:) tells Python, ...