Hi all,
I have some embedded Python code which looks like this in C++
_gstate = PyGILState_Ensure();
PyImport_ImportModule("a");
...
PyGILState_Release(_gstate);
and is called from different threads which are created in C++.
My module a.py then imports another module b in python, which defines a lot
of functions.
When several threads execute this simultaneously I often get a stacktrace
saying some function near the end of module b is not defined, presumably
because the module has been imported part-initialised.
This only seems to happen when my Python modules are packaged in a zip
file, not when they are ordinary files on disk.
I have observed this in both Python 3.7 and Python 3.8. Does anyone have
any insights or suggestions for how to debug this? It seems likely to be
hard to produce a reproducible test case.
Regards,
Geoff Bache
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