I'm afraid I found quite a serious problem with unittest.mock.call objects that is important for users of testfixtures' MockPopen helper.
This release includes a monkey patch to fix that issue as well as a facade over both unittest.mock and the rolling backport on pypi, giving preference to the latter, so you don't have to change your code if you need to flip to the rolling backport for a while when waiting to a bug fix to land in Python core.
This release also include:
call() comparisons
fail when using compare().MockPopen to
enable it to handle multiple processes being active at the same
time.