In the second line, I am trying to make it not crash if a string is entered but can’t find a way to use an exception or something similar. In the while loop it works normally as the exception deals with this case.
number = 0 #this to be removed number = (float(input('pick a number'))) #I want to make this not crash if a string is entered. while number not in [100, 200, 3232]: try: print('wrong number ') number = (float(input('pick a number;'))) #Here it does not crash if a string is entered which is fine except ValueError: print("retry")
while followed by a variable condition often ends up with bugs/repeating code => bad maintenability.
while True condition to avoid repeating your code, then break out the loop when it’s valid.
while True: try: number = (float(input('pick a number;'))) if number in [100, 200, 3232]: break print("wrong number") except ValueError: print("illegal number, retry")
as a side note, for those valid values,
float should probably be
int as any floating point value would be rejected anyway unless the decimal part is