REPEAT
...
UNTIL cond
Is equivalent to
while True:
...
if cond:
break
Programiz
programiz.com › python-programming › while-loop
Python while Loop (With Examples)
For example, while True: user_input = input("Enter password: ") # terminate the loop when user enters exit if user_input == 'exit': print(f'Status: Entry Rejected') break print(f'Status: Entry Allowed') ... Before we wrap up, let’s put your knowledge of Python while loop to the test!
Videos
06:28
do...until Loops - YouTube
Python Repeat Until While Loop - YouTube
Learn Python • #6 Loops • How to Repeat Code Execution - YouTube
08:03
Python Tutorial - Repeating code with LOOPS - YouTube
10:12
While Loop in Python (Perform a Task 1000000 times With Ease) #8 ...
Reddit
reddit.com › r/learnpython › how to make a loop repeat until a condition is met. i want going left to be the condition that needs to be met.
r/learnpython on Reddit: How to make a loop repeat until a condition is met. I want going left to be the condition that needs to be met.
November 22, 2022 -
print("You're in the lost forest\n" + "*" 25) print("" 25) print(" :-( ") print("" 25) print("" *25) print("Right or Left")
which_way = (str.capitalize(input ())) while which_way == "Right": print("HaHaHa!!! You are still in the forest!!!") break
Top answer 1 of 4
3
Hello, I'm a Reddit bot who's here to help people nicely format their coding questions. This makes it as easy as possible for people to read your post and help you. I think I have detected some formatting issues with your submission: Python code found in submission text that's not formatted as code. If I am correct, please edit the text in your post and try to follow these instructions to fix up your post's formatting. Am I misbehaving? Have a comment or suggestion? Reply to this comment or raise an issue here .
2 of 4
2
while which_way != "Left":
freeCodeCamp
freecodecamp.org › news › python-do-while-loop-example
Python Do While – Loop Example
August 31, 2021 - It evaluates to True so the print statement gets executed and Number is 0! is printed to the console. number is then incremented by 1. The condition is re-evaluated and it is again True, so the whole procedure repeats until number is equal to 9.
W3Schools
w3schools.com › python › python_while_loops.asp
Python While Loops
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Python
wiki.python.org › moin › ForLoop
ForLoop - Python Wiki
When running the above example, you can stop the program by pressing ctrl+c at the same time. As you can see, these loop constructs serve different purposes. The for loop runs for a fixed amount of times, while the while loop runs until the loop condition changes.
Top answer 1 of 4
337
There is no do-while loop in Python.
This is a similar construct, taken from the link above.
while True:
do_something()
if condition():
break
2 of 4
54
I prefer to use a looping variable, as it tends to read a bit nicer than just "while 1:", and no ugly-looking break statement:
finished = False
while not finished:
... do something...
finished = evaluate_end_condition()
Real Python
realpython.com › python-while-loop
Python while Loops: Repeating Tasks Conditionally – Real Python
March 3, 2025 - Python has both of these loops and in this tutorial, you’ll learn about while loops. In Python, you’ll generally use while loops when you need to repeat a series of tasks an unknown number of times. Python while loops are compound statements with a header and a code block that runs until a ...
Rhino
developer.rhino3d.com › guides › rhinopython › python-looping
Rhino - Python Looping
As you can see, this compacts the whole thing into a piece of code managed entirely by the while loop. Having True as a condition ensures that the code runs until it’s broken by n.strip() equaling ‘hello’. More information on the while loop can be found at the Python.org While Loop article.
Enki
enki.com › post › how-to-repeat-code-in-python
Enki | Blog - How to Repeat Code in Python
Using Range Function: Another common scenario is repeating code a specific number of times which can be efficiently done using the range() function. This loop will print the statement "This will be printed 5 times" exactly five times. It’s a simplified way to control the number of iterations you need. Python loops, particularly for loops, shine when working with dictionaries.
Medium
medium.com › @BetterEverything › until-loops-and-do-while-loops-in-python-this-is-how-bfe43b22e6b4
Until Loops and Do While Loops in Python? This is how! | by Better Everything | Medium
August 13, 2024 - In Python I have never seen an Until loop and until is not a special keyword. But that doesn’t mean we can’t make one. To make an Until loop we need to loop until a certain condition evaluates to True. To do that, we can choose between a for loop or a while loop to start repeating lines of code.
Withcode
type.withcode.uk › python › Repetition_Iteration
Type: Repeat Until loop
The python code you'll be racing to type out is all about: Repeating ... number of times is known as a count controlled loop because you specify exactly how many times the loop will repeat. Repeat ... times is an example of definite iteration because the number of times the loop repeats is ...
Sololearn
sololearn.com › en › Discuss › 3327905 › repeat-until
Repeat until | Sololearn: Learn to code for FREE!
Brian I always use this method to mimic a do...while loop in python while True: ....
Coursera
coursera.org › tutorials › python-while-loop
How to Write and Use Python While Loops | Coursera
In this example, the while loop ... the rest of the loop body. Write a program that repeatedly prompts the user to enter a number between 1 and 10, until the user enters a valid number....
Python.org
discuss.python.org › python help
Repeat while loop? - Python Help - Discussions on Python.org
October 28, 2021 - Hello! So, Im trying to figure out how to repeat a while loop. I want my loop to restart completely, like if I’m making a game and I want a round two. I’ve tried looking online but it always confused me what is going on……
Reddit
reddit.com › r/learnpython › what's the best way to repeat smth until success n times in python?
r/learnpython on Reddit: What's the best way to repeat smth until success n times in python?
March 5, 2021 -
So basically this:
i = 0while i<5 or not success():i += 1
Top answer 1 of 2
4
Your example is nearly correct, but it should be and. i = 0 while i<5 and not success(): i += 1 To make the following code more obvious, I'm going to make a more specific example. def success(n): return n > 7 i = 0 x = 1 while i < 5 and not success(x): i += 1 x *= 2 # This is your "repeat something" # Other option that I generally like more x = 1 for _ in range(5): # Underscore cause we never use it. Could be i. if success(x): break x *= 2 '''You can also use an else with a for. For-elses are confusing if you haven't seen them, but I think it's just because the name is bad. Else means you got to the end of the for loop by iterating, NOT because of a break. I've seen people add comments to make it more clear.''' x = 1 for _ in range(5): if success(x): print('SUCCESS!') break x *= 2 else: # no break print('Tried 5 times and gave up')
2 of 2
1
You'd have to set a new variable containing the number of successes and move the call to the success() function into the loop: i = 0 successes = 0 while i < 5 and successes < 5: if success(): successes += 1 i += 1
freeCodeCamp
forum.freecodecamp.org › python
Python repeat until equivalent - Python - The freeCodeCamp Forum
April 14, 2020 - I’m using Python to do some numerical simulations. What I want to do is to repeat sampling from a Gaussian distribution until I get a value greater than zero. If there was a repeat…until loop then this would be trivial, but Python doesn’t have one. Has anyone got any ideas how to get ...
OpenClassrooms
openclassrooms.com › en › courses › 6902811-learn-python-basics › 7090826-easily-repeat-tasks-using-loops
Easily Repeat Tasks Using Loops
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Elements Compiler
docs.elementscompiler.com › Oxygene › Statements › Repeat
Repeat/Until Block Loops
Since the condition is evaluated at the end of each iteration, a repeat/until loop will always be executed at least once, even if the condition is already true when execution arrives at the loop.
Quora
quora.com › Does-Python-have-an-until-loop
Does Python have an until loop? - Quora
Answer (1 of 7): P̲y̲t̲h̲o̲n̲ ̲d̲o̲e̲s̲n̲’̲t̲ ̲h̲a̲v̲e̲ ̲a̲ ̲d̲e̲d̲i̲c̲a̲t̲e̲d̲ ̲`̲u̲nt̲i̲l̲`̲ ̲l̲o̲o̲p̲ ̲l̲i̲k̲e̲ ̲R̲u̲b̲y̲ ̲o̲r̲ ̲s̲o̲m̲e̲ ̲o̲t̲h̲e̲r̲ ̲l̲a̲n̲g̲u̲a̲g̲e̲s̲ ̲,̲ ̲b̲u̲t̲ ̲y̲o̲u̲ ̲c̲a̲n̲ ̲e̲a̲s̲i̲l̲y̲ ̲r̲e̲p̲l̲i̲c̲a̲t̲e̲ ̲t̲h̲e̲ ̲b̲e̲h̲av̲io̲r̲ ̲u̲si̲n̲g̲ ̲a̲ ̲`̲w̲h̲i̲l̲e̲`̲ ̲l̲o̲o̲...