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

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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.
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Victor Stinner 2026-06-10 18:43:38 +02:00 • committed by GitHub
parent 9fd1a125bc
commit 7b6e98911e
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Python/codecs.c
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@ -11,6 +11,7 @@ Copyright (c) Corporation for National Research Initiatives.
#include "Python.h"
#include "pycore_call.h" // _PyObject_CallNoArgs()
#include "pycore_codecs.h" // export _PyCodec_LookupTextEncoding()
#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()
@ -1686,6 +1687,8 @@ _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);