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There are two types of loops, namely for and while, using which we can create nested loops. You can put any type of loop inside of any other type of loop. For example, a for loop can be inside a while loop or vice versa.

September 2, 2021 - If the outer number and the inner loop’s current number are the same, then move to the next iteration of an inner loop. ... first = [2, 4, 6] second = [2, 4, 6] for i in first: for j in second: if i == j: continue print(i, '*', j, '= ', i * j)Code language: Python (python) Run ... As you can see in the output, no same numbers multiplying to each other. For example, if you had two lists and want to get all combinations of them, To achieve this, you need to use two nested loops as mentioned below.

March 13, 2024 - In this example, the outer loop ... minute portion between 0 and 59. hour = 8 minute = 0 while hour <= 9: while minute <= 59: print(hour, ":", minute) minute += 30 hour += 1 minute = 0 ... A nested for loop can be implemented ...

Here is an example that illustrates nested loops. The aim is again to print a rectangle made of N x N asterisk, in which for each row a loop iterates from 1 to N, and for each column a nested loop is executed from 1 to N: In Python, when the standard initial value of the variable in the loop ...

May 10, 2024 - So, the number of times line 3 is executed directly depends on the value of i. Notice the part end=’’ inline 3. This is to prevent Python print a linefeed after every star. We only want a linefeed at the end of every iteration of the outer loop. Thus, we have explicitly printed a linefeed in line 4 of our code. So now, let us closely examine every iteration of our nested for loop.

February 22, 2025 - The example above shows a program that allows a user to type a word at the prompt, with each letter of the word eventually printed to the screen. A break keyword is added to halt the execution of the program when exit is typed. Note: To learn more about how to use break, check out the How to Exit Loops Early With the Python Break Keyword tutorial. Whether you’re using for loops or while loops in nested loops, you need to be cautious when using them.

October 1, 2025 - Understand how Python nested loops work, their syntax, and practical examples to enhance your programming skills and solve complex problems efficiently.

July 12, 2019 - We will exemplify the simple case of one loop inside another but everything works just the same way when you have more than two nested loops being the for loop or the while loop. However, let us review the following basic concepts about loops in Python:

April 10, 2023 - The inner loop will execute for each iteration of the outer loop: lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] for sublist in lists: for item in sublist: print(item) This code will output all the items in the list one by one — 1, 2, 3, 4, 5, ...

April 1, 2025 - The syntax below shows a 1-level nested for loop. for in n: # piece of code goes here for in n: # piece of code goes here · Example 1: Use nested for loop to print numbers in patterns

October 25, 2025 - Printing a multiplication table is a classic example that clearly demonstrates the use of nested loops in Python.

This principle is known as nested loops. Nested loops go over two or more loops. Programmers typically nest 2 or 3 levels deep. Anything higher than that is just confusing. Related course: Complete Python Programming Course & Exercises · Lets do a simple example.

Start your coding journey with Python. Learn basics, data types, control flow, and more ... for outer_itemin outer_iterable: for inner_itemin inner_iterable: # Code that uses outer_item and inner_item ... The outer loop picks one value. The inner loop runs completely for that value. The outer loop moves to the next value, and the inner loop runs again. You can also nest while loops, or mix for and while:

January 25, 2026 - The general syntax for using nested for loops in Python is as follows: # Outer for loop for iterating_var in sequence: statement-1 # Outer block statement. # Inner for loop for iterating_var in sequence: statement-2 # Inner block statement. statement-3 # Outer block statement. statement-4 · Let’s understand the working of nested for loop with the help of an example.

May 31, 2024 - Like for loop, while loop also iterates over the iterable objects such as a list, tuple, set, dictionary, string, and array until a certain condition is met. Below example, we will iterate the given list using an outer loop.

July 26, 2022 - If the break statement is used inside a nested loop in python, it will terminate the innermost loop. In the following example, we have two loops. The outer for loop iterates the first four numbers using the range() function, and the inner for loop also iterates the first four numbers.

May 21, 2021 - In other words, a nested loop refers to a loop inside a loop. The “inner loop” will execute one time for each iteration of the “outer loop”: ... Print each adjective for every vegetable: adj = ["green", "leafy", "juicy"] vegetables = ["spinach", "kale", "pumpkin"] for x in adj: for y in vegetables: print(x, y) Python programming language enables us to use one loop inside another loop. To help you better understand the concept, please look at the examples given below: