Efficient way of having a function only execute once in a loop
Jun 6, 2014 · action = run_once(my_function) while 1: if predicate: action() This will leave my_function available for other uses. Finally, if you need to only run it once twice, then you can just do. action = run_once(my_function) action() # run once the first time action.has_run = False action() # run once the second time
Executing one line of code inside a while loop only once
Jan 27, 2019 · How do I make a specific line of code execute only once inside a while loop? I want the line: "Hello %s, please enter your guess: " %p1" to run only once and not every time the player guesses wrong.
python - Best way to run code once within while loops ... - Stack Overflow
Nov 12, 2018 · log("What is your name, adventurer?", eventLog) runOnce = True. if you.rName != None and nextRun == False: log(f'What is your profession, {you.rName}?', eventLog) nextRun = True. What I have currently works, but there are a ton more if-statement type situations that need responses before continuing to the next statement.
Run a Function or a Loop only Once in Python | bobbyhadz
Apr 9, 2024 · To run a function only once: Declare a global variable and initialize it to False. Change the value of the global variable to True in the function. Only run the code in the function if the global variable is set to False. if sum_has_run: return . sum_has_run = True return a + b. print(sum(100, 100)) # 👉️ 200 print(sum(100, 100)) # 👉️ None.
How to Run a Function or a Loop Only Once in Python
In programming, you may encounter situations where a block of code, either within a function or a loop, is intended to run only once. This guide explores various techniques for achieving this in Python, covering approaches for both functions and …
Top 2 Methods to Ensure a Function Executes Once in a Loop
Nov 24, 2024 · When building interactive applications in Python, having a function execute only once can sometimes become a challenge, especially if handled inefficiently. Below is a discussion on alternative approaches to achieving this goal without relying on …
Python 3: Executing a Function Once in a Loop Efficiently
Oct 10, 2024 · Executing a function once in a loop efficiently can be achieved using various techniques. Using a flag variable, a counter variable, or a break statement can help ensure that the function is executed only once.
Optimize Your Code: Run Functions and Loops Only Once in Python
To run a loop only once using a `while True` loop, use a break statement to exit the loop after one iteration. A break statement is used to terminate a loop or switch statement and transfer control to the statement immediately after the loop or switch.
[python] how do i create a function that only runs 1 time?
Nov 14, 2022 · just call the function once and it will only run once or use the hasattr function: def funcWithState (): if not hasattr (funcWithState, "cache"): print ("this part only runs once") funcWithState. cache = "stuff" #put sutff into the cace during first call return funcWithState. cache; print (funcWithState ()) print (funcWithState ()) print ...
python - Running a function inside of a loop only once - Stack Overflow
Feb 17, 2022 · This all works great, but once it does satisfy the if statement, I need it to only send auxFunction once. This section of the code works by getting temperature from a thermocouple, and then I'm using an if statement to call for a specific function when the temp == a specific value.
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