How to rewrite this code without a while True loop?What should be instead of True?

Question

The loop should be a while loop and i dont think for loops would work here but the question is what should i write instead of True?
https://code.sololearn.com/cvVAYPF9TsE0/?ref=app
The code itself is about an american who visits a european sauna and has to enter the temperature in farenheit, the conditions and the functions works fine and its just that im not allowed to use an infinite loop.

Answer 1

def fahr_to_cel(fah):
y = (fah - 32) * 5 / 9
return y

def get_fahr():
degrees = None
try:
degrees = int(input('Choose a temperature between 82-87 degrees Celsius: '))
except:
print("\nInput error")
return degrees

f = get_fahr()
c = None if f is None else fahr_to_cel(f)
while f is None or (not (82 <= c <= 87)):
print("Wrong input: {0}F => {1}C".format(f,c))
f = get_fahr()
c = None if f is None else fahr_to_cel(f)

print("\nYou can now enter. The temperature will be adjusted shortly.")

Answer 2

Brian Works!!Just one thing when i type in letters instead of numbers, i get two things printed out: input error and wrong input, only one of those should be printed out,any suggestions?

Answer 3

Brian nevermind i replaced input error with ”Numbers only!”

Answer 4

Lenoname my revision initially gets the input and calculates. Then the loop condition is a validity check. It only enters the loop if it needs to prevent moving forward until the input is valid.

Both f and c mean the same as your original code, although they may also take the additional value of None to indicate invalid input.

Answer 5

Would this be accepted?

valid = False
while not valid:
try:
f = int(input('Choose a temperature between 82-87 degrees Celsius: '))
c = fahr_to_cel(f)
valid = 82 <= c <= 87
if not valid:
print("Wrong input: {0}F => {1}C".format(f,c))
except:
print("\nInput error")

print("\nYou can now enter. The temperature will be adjusted shortly.")

Answer 6

Brian probably not, i was thinking maybe while not 82 <= c <= 87: would be a good start but i dont really know

Answer 7

Brian
https://code.sololearn.com/cAJ9o2cL1bVf/?ref=app
This was my attempt but if i write letters on the first try(notice only letters not numbers) there wont be anymore tries and the programme would exit or stop.

Answer 8

Brian why is c and f defined outside of the loop though?and what is exactly c?