Есть конструкция:
with Pool(int(10)) as p:
p.map(self.make_all, f)
objc[62755]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called.
objc[62755]: +[__NSPlaceholderDate initialize] may have been in progress in another thread when fork() was called.
We cannot safely call it or ignore it in the fork() child process. Crashing instead. Set a breakpoint on objc_initializeAfterForkError to d