Ned Batchelder

Thanks for taking this all on. I [added some details](https://github.com/nedbat/coveragepy/commit/fcb782df20dee25944f27a8a3104e8d5d150c249) to the Contributing section of the docs about dependencies and `make upgrade`, though I wonder if I've added enough? Can...

What is the future of this pull request? It might be too hard to get everything type-checked, since the master branch is continuing development. Is there a way to get...

I can't help with this error unless you provide full details of how to reproduce it. What project are you running? You've shown `python setup.py install`, but I don't know...

Feel free to re-open this when you come back to it.

I don't quite understand what's happening here yet, but I'm wondering why do it this way instead of using the coverage command-line interface?

TBH, I don't quite understand why it behaves as it does, but you can fix it: ```python if "test" in sys.argv: cov = Coverage() cov.erase() cov.start() execute_from_command_line(sys.argv) if "test" in...

And this make some sense because when run from the command line, `coverage run` and `coverage combine` each start a new Coverage object.

I'd be interested in adding annotations right into the code. I'd been using pycontracts as a pre-historic way of checking types, but that package is unmaintained and is causing pain....

That's generous of you, but I don't want black for this repo, thanks. I don't know anything about basedmypy, but I'm guessing I don't want that either, but maybe I'm...

This is tricky. Concurrency isn't supported in the Python tracer because the extra conditionals that would be needed would slow down people who aren't using concurrency. There are two constituencies...