I am trying to write a function that yields two variables and also raises an exception based on a condition. Here is a minimal example:

def func():
  var1 = 0
  var2 = 1
  yield var1, var2
  if not var1 > var2:
    raise Exception(var1,var2)
var1, var2 = (1,1)
var1,var2 = func()

This structure currently doesn't yield var1, var2 and raises an exception. I need it to yield and raise an exception within this function itself so that other modules can directly use this function without additional code. If the yield statement is not a good idea then what is?

tried - [_ for _ in func()] but var1 and var2 value doesn't change as expected from yield.
tried - var1, var2 = next(func()) this yields but doesnt raise an exception.