Just an informational post, coverage builds running on continuous integration have been turned down as part of bpo-43888.
This means that Codecov - python/cpython will no longer measure the coverage for latest pushes and pull requests.
While this was a useful feature, it seemed to be mostly underutilized by the core dev community, there seemed to be only a handful of mentions of codecov and links to reports. Coverage instrumented builds are much more intensive taking up valuable CI time. There were also a host of issues over the years that had to be fixed (e.g coverage builds exceeding Travis time limits and codecov spamming comments on pull requests).
If you wish to view coverage, please follow the instructions from the devguide for how to do so locally.