On Sat, Jun 19 2021, Arun Isaac wrote:

>> This 'check phase doesn’t respect the ‘--with-tests’ transformation.
>> Something like the following would be better:
>>
>>   (replace 'check
>>     (lambda* (#:key inputs outputs tests? #:allow-other-keys)
>>       (when tests?
>>         (with-directory-excursion "tests"
>>           (add-installed-pythonpath inputs outputs)
>>           (invoke "py.test" "tests")))))
>
> Makes sense. I'll add the `when tests?', but what's the
> with-directory-excursion for?

Oops, ignore the ‘with-directory-excursion’, sorry about that.