Use a dedicated multiprocessing context (of type "fork")#655
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Tests with coverage often produce "No data to report" errors with "forkserver", which became the default on POSIX systems with Python 3.14. Using a multiprocessing context allows changing the start method only for the mp plugin.
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Ah, hello Windows CI. Let's see if we can come to some kind of agreement about multiprocessing. 😄 |
The two context types have different _types_, which results in mypy failures. Cool. Fixy fix.
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In order to ensure that
nose2isn't harmed by or harmful to users who set themultiprocessing process start method (globally), it now uses a multiprocessing
context for the "mp" (multiprocess) plugin.
This also ensures that
nose2continues to use "fork" on Python 3.14+.