[issue27749] multprocessing errors on Windows: WriteFile() argument 1 must be int, not None; OSError: handle is closed

wevsty added the comment: A similar situation also occurs in the following Linux，A similar situation on stackoverflow http://stackoverflow.com/questions/29277150/python-3-4-multiprocessing-bug-on-lock-acquire-typeerror-integer-required

[issue27749] python 3.5.2 maybe crash in windows

Changes by wevsty : -- title: python 3.5.2 maybe crash -> python 3.5.2 maybe crash in windows ___ Python tracker <http://bugs.python.org/issue27749> ___ ___ Py

[issue27749] python 3.5.2 maybe crash

wevsty added the comment: I try to change the multiprocessing lib codes，upload the file is debugger display.I try to used while loop make sure connection hanle value is not none,but connection hanle value will still becomes none. I think there may be other threads to modify the handle，But it

[issue27749] python 3.5.2 maybe crash

wevsty added the comment: To Decorater If you are found to have crashes, I'm sorry, you can follow the previous suggestion to use python_d.exe then open a new issue uploading crash dump. It would be better. About the multiprocessing question，I would like to add some information. My code