[issue29778] _Py_CheckPython3 uses uninitialized dllpath when embedder sets module path with Py_SetPath

[Steve Dower]

Change by Steve Dower <steve.dower at python.org>:


----------
pull_requests:  -20454

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue29778>
_______________________________________