Eve has had a hard day at work at the bakery today.So, she wants to take a nap. She’s told her mum not to disturb her while she’s sleeping. Once she wakes up, her mother can give her chores.Her request condition expires or, is terminated, once she wakes up and is no longer sleeping.
While eve is sleeping:
Don’t disturb her
This is the basic principle of a While Loop. The while loop tells the computer to do something as long as the condition is met.
The condition is evaluated, and if the condition is true, the code within the block is executed. This repeats until the condition becomes false.
The syntax for while loop is:
while [a condition is True]:
[do something]
Eve can’t sleep, so she decides to count sheeps till 25. Let’s try printing values from 1 till 25 using a while loop.
sheep_counter = 1
while sheep_counter < 26:
print(sheep_counter)Oh no! What happened, the computer is just printing 1 and is not even stopping!
Don’t worry, you are just stuck in an infinite loop as the condition sheep_counter which has a value of 1 is less than 26 is always True! Let’s update the value of the sheep_counter after each iteration.
Sheep_counter = 1
While sheep_counter < 26:
print(sheep_counter)
sheep_counter = sheep_counter + 1