TypeError: warnTime() missing 1 required positional argument: i

I have this code:

def warnTime(i):
  i += 1
  print(i)

t = Timer(20, warnTime)
t.start()

The rest of the code works just fine, but when it comes to this part, it raises the TypeError.

When I try to get the variable value it does the same thing.
When I try to do i = 0 before the function it just returns 0.

I tried calling the function with argument, like warnTime(0) or variable = warnTime(0), but it didn’t work.

>Solution :

Assuming you are using the Threading Timer, you’ll need to pass the initial value of i, change your code to:

from threading import Timer

def warnTime(i):
  i += 1
  print(i)

t = Timer(20, warnTime, args=[0])
t.start()

Try it online!