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

[Michael Jacob]

Michael Jacob  added the comment:

So, I'm experiencing the issue in the title, too. The pipe handle stays valid 
for between 5 and 60 minutes, then it goes None when written to.

I'm far from understanding that code, but this crude re-connect code seems to 
solve the issue for me:

In BaseProxy._callmethod, I changed:

conn.send((self._id, methodname, args, kwds))

to:

try:
conn.send((self._id, methodname, args, kwds))
except TypeError:
self._connect()
conn = self._tls.connection
conn.send((self._id, methodname, args, kwds))

--

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

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

[Michael Jacob]

Michael Jacob  added the comment:

Does this ticket track the issue in its title or the native crash? If it's the 
latter, is there a new ticket for the None _handle or shall I create one?

--
nosy: +Michael Jacob2
versions: +Python 3.7

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

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

[Xiang Zhang]

Changes by Xiang Zhang :


--
nosy: +davin

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

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

[wevsty]

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

--

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

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

[STINNER Victor]

Changes by STINNER Victor :


--
title: multprocessing errors on WindowsWriteFile() argument 1 must be int, not 
None; OSError: handle is closed -> multprocessing errors on Windows: 
WriteFile() argument 1 must be int, not None; OSError: handle is closed

___
Python tracker 

___
___
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com