Emulate a do-while loop in Python?

Question

I need to emulate a do-while loop in a Python program. Unfortunately, the following straightforward code does not work:

list_of_ints = [ 1, 2, 3 ]
iterator =         


        

Answer 1

The built-in iter function does specifically that:

for x in iter(YOUR_FN, TERM_VAL):
    ...

E.g. (tested in Py2 and 3):

class Easy:
  X = 0
  @classmethod
  def com(cls):
    cls.X += 1
    return cls.X

for x in iter(Easy.com, 10):
  print(">>>", x)

If you want to give a condition to terminate instead of a value, you always can set an equality, and require that equality to be True.