https://github.com/unbit/uwsgi/commit/509104eaff6f6ecde656c20fdd65a0b98b371c8d

From 509104eaff6f6ecde656c20fdd65a0b98b371c8d Mon Sep 17 00:00:00 2001
From: Nicolas Evrard <nicoe@openhex.org>
Date: Thu, 17 Nov 2022 09:47:39 +0100
Subject: [PATCH] plugins/python: Use "backslashreplace" on stderr
 initialization

Failing to use this value will result in enconding errors when logging
unicode characters to stderr
--- a/plugins/python/python_plugin.c
+++ b/plugins/python/python_plugin.c
@@ -554,7 +554,7 @@ void init_uwsgi_vars() {
 #ifdef HAS_NO_ERRORS_IN_PyFile_FromFd
 		PyObject *new_stdprint = PyFile_FromFd(2, NULL, "w", _IOLBF, NULL, NULL, 0);
 #else
-		PyObject *new_stdprint = PyFile_FromFd(2, NULL, "w", _IOLBF, NULL, NULL, NULL, 0);
+		PyObject *new_stdprint = PyFile_FromFd(2, NULL, "w", _IOLBF, NULL, "backslashreplace", NULL, 0);
 #endif
 		PyDict_SetItemString(pysys_dict, "stdout", new_stdprint);
 		PyDict_SetItemString(pysys_dict, "__stdout__", new_stdprint);