[issue36477] Subinterpreters are not finalized during runtime finalization.

[Eric Snow]

Change by Eric Snow :


--
resolution:  -> duplicate
stage: needs patch -> resolved
status: open -> closed
superseder:  -> Lingering subinterpreters should be implicitly cleared on 
shutdown

___
Python tracker 

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

[issue36477] Subinterpreters are not finalized during runtime finalization.

[Eric Snow]

New submission from Eric Snow :

When using subinterpreters, any that exist when Py_FinalizeEx() is called do 
not appear to get cleaned up during runtime finalization.  Maybe I've been 
looking at the code too much and I'm missing something. :)

This really isn't a problem except for embedders that use subinterpreters 
(where we're leaking memory).  However, even with the "python" executable it 
can have an impact because the subinterpreters' non-daemon threads will exit 
later than expected. (see #36469 & #36476)

The solution would be to finalize all subinterpreters at the beginning of 
Py_FinalizeEx(), right before the call to wait_for_thread_shutdown().  This 
means calling Py_EndInterpreter() for all the runtime's interpreters (except 
the main one).  It would also mean setting a flag 
(_PyRuntime.interpreters.finalizing?) right before that to disallow creation of 
any more subinterptreters.

--
components: Interpreter Core
messages: 339144
nosy: eric.snow
priority: normal
severity: normal
stage: needs patch
status: open
title: Subinterpreters are not finalized during runtime finalization.
type: behavior
versions: Python 3.7, Python 3.8

___
Python tracker 

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