From f59d626fe337260321c6bce60ce2da4b8577d4c9 Mon Sep 17 00:00:00 2001
From: Sandro Mani <manisandro@gmail.com>
Date: Mon, 3 May 2021 23:30:13 +0200
Subject: [PATCH] Don't re-initialize psycoEncodings if already initialized

---
 psycopg/psycopgmodule.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/psycopg/psycopgmodule.c b/psycopg/psycopgmodule.c
index 2a4c9e6a..d448d010 100644
--- a/psycopg/psycopgmodule.c
+++ b/psycopg/psycopgmodule.c
@@ -608,6 +608,10 @@ encodings_init(PyObject *module)
     int rv = -1;
 
     Dprintf("psycopgmodule: initializing encodings table");
+    if (psycoEncodings) {
+        Dprintf("encodings_init(): already called");
+        return 0;
+    }
 
     if (!(psycoEncodings = PyDict_New())) { goto exit; }
     Py_INCREF(psycoEncodings);