>     >>> tuple(foo)
>
>     TypeError: 'int' object is not iterable
>
> No raiser, no value given. It's hard to find out what's the problem is. The
> biggest issue here is that if you have a long line with tuple() in the
> middle, yuou need to know the problem comes from tuple.
>
> Another problem is that many people don't know what iterable means.
>
> A better error message would be:
>
> TypeError: tuple() only accept iterables (any object you can use a for loop
> on). But it received '1', which is of type <int>.

-1 on this one. It doesn't really add very much - "iterable" is a good
keyword that anyone can put into a search engine.

Adding the repr of
the object that was passed is nice if it's an integer, but less so if
you passed in some huge object.

If your lines of code are so complicated that you can't pinpoint the
cause of the TypeError, the solution is probably to break the line.

>    SyntaxError: bytes can only contain ASCII literal characters.
>
> This is not helpful to somebody unaware of the difference between text and
> bytes.

Someone unaware of the difference between text and bytes probably
isn't messing with code that has b"..." strings in it.