Force multiprocessing fork on macOS #138
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I came across this problem when running some tests with pytest-flask on an unrelated application: From multiprocessing docs , "On macOS, the spawn start method is now the default". This causes
LiveServerto throw a pickling error onpy39and totally break. I propose we stick to "fork" method for now until a proper fix inLiveServer(I'll open a follow up issue on this).