Just noticed that the sentence is also missing the final full stop.
New patch attached.
On Mon, May 29, 2017 at 5:38 PM, Daniele Varrazzo
<daniele(dot)varrazzo(at)gmail(dot)com> wrote:
> The error message hint suggests [('foo')]. ('foo') is not a valid
> Python tuple: it's a literal with redundant parentheses. ('foo',) is a
> valid tuple.
>
> Patch to correct the hints and an occurrence in the test suite attached.
>
> -- Daniele