Try to use `fork` as "start method" (instead of "spawn").
Yes but no. Indeed with `fork` there is no need to pickle anything. In particular the child process will be a copy of the parent so it will have all the modules loaded, including the dynamic ones. Perfect. The problem is that `fork` is the default only in Linux. It works in MacOS but it may lead to crashes if the parent process is multithreaded (and the my is!) and `fork` does not work in Windows. -- https://mail.python.org/mailman/listinfo/python-list
