Duplicated printing of the same line

[fraioo]

The following code ran in 2 different notebooks gives two different results. One of them is duplicating the printing command as you can see (in the screenshots attached)

and the other one is perfectly fine. And yes, I've restarted the kernel and cleaned all outputs before running both. Can you help please? I've spent tons of time around this and cannot figure out what's wrong ...

def user_choice():

choice ='WRONG'
within_range = False

while choice.isdigit() == False or within_range == False:
    
    choice = input("Please enter a number (0-10): ")
    
    if choice.isdigit() == False:
        print("Sorry that is not a digit!")
        
    if choice.isdigit() == True:
        if int(choice) in range(0,11):
            within_range = True
        else:
            print("Sorry, that number is not between 0-10.")
            within_range = False

return int(choice)`

[JakkuSakura]

I ran into this issue today as well. Initially I thought it's logging's issue, but with debugger it's fine. I also found that if I run the cell with breakpoints, or run it for the second time, it's not duplicating.

I assume the code reading stderr/stdout has bug in it, but I don't have time to fix it on my own