In Python programming language, the iteration statements, for loop, while loop and do-while loop, permit the arrangement of instructions to be repeatedly executed, till the condition is true and ends when the condition becomes bogus. Syntax Of While Loop In Python. A while loop statement in Python programming language repeatedly executes a target statement as long as a given condition is true.. Syntax. Loop through each element of Python List, Tuple and Dictionary to get print its elements. Use the while loop with the syntax as given below. The syntax of a while loop in Python programming language is −. You can supply a negative step value to generate a list of numbers that is decreasing. But unlike while loop which depends on … while expression: statement(s) Here, statement(s) may be a single statement or a block of statements. Ways to increment a character in Python. 31, Oct 17. Conditions in iteration statements might be predefined as in for loop or open-finished as in while loop. However, there are few methods by which we can control the iteration in the for loop. To Learn more about working of While Loops read: How To Construct While Loops In Python Python - Decrement Dictionary value by K. 10, Dec 19. The canonical for-loop in C and C++ is written thus, counting up i = 0, i = 1, …, i = N-1: for (int i=0; i < N; i++) { // loop body } (In C, you have to declare int i before the for-loop.) 22, Apr 20. The condition may be any expression, and true is any non-zero value. This continues till x becomes 4, and the while condition becomes false. Python does not provide multiple ways to do the same thing . Ways to increment Iterator from inside the For loop in Python. Perform a simple iteration to print the required numbers using Python. In programming, Loops are used to repeat a block of code until a specific condition is met. Python: For Loop – Explained with examples 6 ways to get the last element of a list in Python How to Reverse a 1D & 2D numpy array using np.flip() and [] operator in Python The condition is true, and again the while loop is executed. If you do that, you need to make sure your stopping value is less than your starting value, or else you’ll get a list with no elements: for i in range(10, -6… The above example shows this odd behavior of the for loop because the for loop in Python is not a convention C style for loop, i.e., for (i=0; i