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

[Anthony Wee]

Change by Anthony Wee <antxwee at gmail.com>:


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pull_requests: +17244
pull_request: https://github.com/python/cpython/pull/17818

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