FOR LOOP , RANGE

FOR LOOP

A while loop is perfect to use when we don't know how many times we want the loop to repeat.

If we have an idea of how many times we want the loop to repeat, we can use a for loop to loop code in exactly the same way the while loop did.

EXAMPLE :

for counter in range(10):

print(counter)

RANGE

The range function creates a list of numbers in the range you create. If you only give it one number, it will start at 0 and move to a state where the final number is one less than the number in the brackets. In this case, the final number would be 9.

EXAMPLE :

total = 0

for number in range(100) :

total += number

print(total)

Comments

ALL ABOUT WHILE LOOP

WHILE LOOP A while loop allows your code to repeat itself based on a condition you set. EXAMPLE : counter = 0 while counter < 10: print(counter) counter +=1 Infinite Loop You have to be really careful that you don't accidentally invoke an infinite loop! This is where the computer will loop code until the end of time. Without a break. Forever. This is just saying "count to 10 by 1 each time." to make the loop end. Don't forget, if your condition is a > then you might need to -= . This will subtract from the variable instead of adding to it. EXAMPLE : counter = 0 while counter < 10: print(counter) counter += 1

WHAT IS ELIF

What the elif is this? The elif command (which stands for 'elseif') allows you to ask 2, 3, 4 or 142 questions using the same input! This command must be in a certain place. You can have as many elif statements as you want, but they must go in between if and else and have the same indentation. The print statements in your elif command need to line up with the indent of the other print statements. EXAMPLE : print("SECURE LOGIN") username = input("Username > ") password = input("Password> ") if username == "mark" and password == "password": print("Welcome Mark!") elif username == "suzanne": print("Hey there Suzanne!") else: print("Go away!") E

Automate! Automate!

Making this customizable 👉So how about making our search user customizable? In the code below, I have: Asked the user to input an artist (line 14) Tidied up their input (line 15) formatted the search URL as an fString that includes the artist (line 19) Here's tAutomate! Automate! We are so close. I can taste it, folks! Massive kudos on getting this far! Today's lesson, however, will work best if you have one of Replit's paid for features (hacker plan or cycles). Free plan Repls 'fall asleep' after a while. Automation kinda relies on the Repl being always on. If you have hacker plan or you've bought some cycles, then you can enable always on in the drop down menu that appears when you click your Repl name (top left).he code: This is important because when our repl is always running, it can keep track of time and schedule events. 👉 I've set up a simple schedule that prints out a clock emoji every couple of seconds. It works like this: Import schedule librar

PYTHON SYNTAX

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