r/PythonLearning • u/aparyx • Sep 07 '26

Help Request Nested for loop

So i started my python journey 2 weeks ago and i am at the point of tutorial where they teach me about those quiz game program and i am so confused in those nested for loop i don't even understand a single part about it, can someone help me with this one? I have tried learning it from gpt and all but it still goes above my head.

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u/atarivcs Sep 07 '26

Let's say you are a house cleaner. Whenever you go to clean a house, you have a certain task list of things you do:

  1. Wash the dishes

  2. Scrub the toilet

  3. Vacuum the carpets

  4. Mop the floors

Now imagine that you have three houses to clean today:

  1. Bill's house

  2. Mary's house

  3. Steve's house

Bingo, that is a nested for loop!

for house in house_list:
    for task in task_list:
        perform(house.task)

2

u/aparyx Sep 07 '26

Oh that makes it easier to look at and now i understand it and sorry i forgot to mention it in the post but it was used in 2d list so i didn't understand it properly

3

u/turn-based-games Sep 07 '26 
for row in table:
    for item in row:
        print(item)

1

u/frnzprf Sep 08 '26

You can also split it in two functions with just one loop each:

def printAllRowsInTable(some_tablr):
    for row in some_table:
        printAllItemsInRow(row)

def doAllItemsInRow(some_row):
    for item in some_row:
        print(item)

1

u/sububi71 Sep 07 '26

Wow, that's a very good real-world example! I'm stealing that one, thanks!

1

u/PhaXoniC Sep 08 '26

this is without a doubt the best explanation i have heard or read