From 851c4e94a75452f13e333dab3cfdf7a9401e81aa Mon Sep 17 00:00:00 2001
From: "Benjamin A. Beasley" <code@musicinmybrain.net>
Date: Wed, 5 Jun 2024 12:26:16 -0400
Subject: [PATCH] Replace `_PyLong_Format` with `PyNumber_ToBase`
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`_PyLong_Format` is in Python’s internal, private API; `PyNumber_ToBase`
belongs to the Stable API, and is a fairly thin wrapper around
`_PyLong_Format` with a bit of extra error checking.

Fixes #116.
---
 immutables/_map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/immutables/_map.c b/immutables/_map.c
index d3990aed..256f4677 100644
--- a/immutables/_map.c
+++ b/immutables/_map.c
@@ -1284,7 +1284,7 @@ map_node_bitmap_dump(MapNode_Bitmap *node,
     if (tmp1 == NULL) {
         goto error;
     }
-    tmp2 = _PyLong_Format(tmp1, 2);
+    tmp2 = PyNumber_ToBase(tmp1, 2);
     Py_DECREF(tmp1);
     if (tmp2 == NULL) {
         goto error;