Upgrading/unbundling coverage?

[Dirkjan Ochtman]

Hi there,

At PyCon, I sprinted with the coverage.py developer on fixing it up so
that it can trace through subprocesses. This means that we should be
able to get accurate coverage results for things like hgweb. To enable
this, we need to upgrade to coverage.py 3.3. However, in this version
coverage.py has become a package. Also, I find that keeping external
code in our tree can be a bit of a pain (for example with check-code),
so I wonder if maybe we should unbundle coverage from our tree and
simply have the --cover option (and related options) error out if
coverage isn't available.

Anyone else has thoughts on this?

Cheers,

Dirkjan