[Tutor] Unexpected iterator

[Patrick Sabin]

Jeff R. Allen wrote:

>>>> a, b = 0
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> TypeError: 'int' object is not iterable
> 
> I understand why it doesn't work, but I don't understand the wording
> of the exception. Could someone explain how I accidentally introduced
> iteration into the picture with my syntax? I have a feeling there's an
> interesting lesson hidden in this example...

To upack your variables a and b you need an iterable object on the right 
side, which returns you exactly 2 variables, e.g you could also write

a, b = range(2)

or create your own class

class X:
	def __iter__(self):
		yield 0
		yield 0

a,b = X()

- Patrick