Dependabot can't resolve your Python dependency files

[dependabot-preview]

Dependabot can't resolve your Python dependency files.

As a result, Dependabot couldn't update your dependencies.

The error Dependabot encountered was:

Could not find a version that matches black
Skipped pre-versions: 18.3a0, 18.3a0, 18.3a1, 18.3a1, 18.3a2, 18.3a2, 18.3a3, 18.3a3, 18.3a4, 18.3a4, 18.4a0, 18.4a0, 18.4a1, 18.4a1, 18.4a2, 18.4a2, 18.4a3, 18.4a3, 18.4a4, 18.4a4, 18.5b0, 18.5b0, 18.5b1, 18.5b1, 18.6b0, 18.6b0, 18.6b1, 18.6b1, 18.6b2, 18.6b2, 18.6b3, 18.6b3, 18.6b4, 18.6b4, 18.9b0, 18.9b0
There are incompatible versions in the resolved dependencies.

If you think the above is an error on Dependabot's side please don't hesitate to get in touch - we'll do whatever we can to fix it.

You can mention @dependabot in the comments below to contact the Dependabot team.

[greysteil]

FYI, I'm digging into what's gone wrong with Dependabot to have it cause that error. I'll have a fix for you today.

[greysteil]

OK, on further investigation the underlying issue here is pypa/pipenv#3017. Dependabot uses the latest version of Pipenv, and is seeing that error during updating (I also see it when attempting to pipenv install for this repo locally).

I'll see if I can implement the workaround on Dependabot, but this should be fixed in the next Pipenv release regardless.

Thanks for giving Dependabot a try!

[greysteil]

Apologies this took me so long to get fixed. Dependabot is now using Pipenv 2018.11.14 which appears to be working 👌.