while_recursive.py

>>> def counter():
...     def wrapper():
...         wrapper.count += 1
...         return wrapper.count
...     wrapper.count = 0
...     return wrapper
... 
>>> def while_rec(func, pred):
...     result = func()
...     if pred(result) is False:
...         return result
...     return while_rec(func, pred)
... 
>>> while_rec(counter(), lambda x: x != 10)
10