Loop until condition is true

[Scott David Daniels]

Magnus Lycka wrote:
> In some cases, "==" and "is" happens to give the same result.
>  >>> a = 1
>  >>> b = 1
>  >>> a == b
> 1
>  >>> a is b
> 1
> 
> But often not.
> 
>  >>> c = 123456789
>  >>> d = 123456789
>  >>> c == d
> 1
>  >>> c is d
> 0
> 
...
> First of all, a lot of Python values except 1 (a.k.a. True)
> are logically true in a Python expression....

Actually, True and 1 are interesting examples.

 >>> a, b = 1, True
 >>> a == b
True

 >>> a is b
False


I suspect you simply forgot this fact.

--Scott David Daniels
Scott.Daniels at Acm.Org