[3.15] gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250) (#151269)

gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250)

If "import encodings" fails at Python startup, dump the Python path
configuration to help users debugging their configuration. The
encodings module is the first module imported during Python startup.

(cherry picked from commit 7b6e98911e)
This commit is contained in:
Victor Stinner 2026-06-10 22:03:27 +02:00 committed by GitHub
parent 040cee94aa
commit 10f616cf39
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3 changed files with 17 additions and 0 deletions

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@ -10,6 +10,7 @@ Copyright (c) Corporation for National Research Initiatives.
#include "Python.h"
#include "pycore_call.h" // _PyObject_CallNoArgs()
#include "pycore_initconfig.h" // _Py_DumpPathConfig()
#include "pycore_interp.h" // PyInterpreterState.codec_search_path
#include "pycore_pyerrors.h" // _PyErr_FormatNote()
#include "pycore_pystate.h" // _PyInterpreterState_GET()
@ -1685,6 +1686,8 @@ _PyCodec_InitRegistry(PyInterpreterState *interp)
// search functions, so this is done after everything else is initialized.
PyObject *mod = PyImport_ImportModule("encodings");
if (mod == NULL) {
PyThreadState *tstate = _PyThreadState_GET();
_Py_DumpPathConfig(tstate);
return PyStatus_Error("Failed to import encodings module");
}
Py_DECREF(mod);