From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Thu, 8 May 2025 18:35:22 +0000 (+0100)
Subject: GH-132983: Remove subclassing support from zstd types (#133694)
X-Git-Tag: v3.15.0a1~1818
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bd7c5859c6c4f23877afdf6ab7b8209de50127a6;p=thirdparty%2FPython%2Fcpython.git

GH-132983: Remove subclassing support from zstd types (#133694)

For consistency with ``bz2``, ``lzma``, and ``zlib``.
---

diff --git a/Modules/_zstd/compressor.c b/Modules/_zstd/compressor.c
index 9a3d8dedcf23..fc1d3b9d2106 100644
--- a/Modules/_zstd/compressor.c
+++ b/Modules/_zstd/compressor.c
@@ -702,6 +702,6 @@ static PyType_Slot zstdcompressor_slots[] = {
 PyType_Spec zstdcompressor_type_spec = {
     .name = "_zstd.ZstdCompressor",
     .basicsize = sizeof(ZstdCompressor),
-    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
     .slots = zstdcompressor_slots,
 };
diff --git a/Modules/_zstd/decompressor.c b/Modules/_zstd/decompressor.c
index dec917481ab1..4ac28d9c987d 100644
--- a/Modules/_zstd/decompressor.c
+++ b/Modules/_zstd/decompressor.c
@@ -886,6 +886,6 @@ static PyType_Slot ZstdDecompressor_slots[] = {
 PyType_Spec zstddecompressor_type_spec = {
     .name = "_zstd.ZstdDecompressor",
     .basicsize = sizeof(ZstdDecompressor),
-    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
     .slots = ZstdDecompressor_slots,
 };
diff --git a/Modules/_zstd/zstddict.c b/Modules/_zstd/zstddict.c
index a19224c4a640..53c96b104104 100644
--- a/Modules/_zstd/zstddict.c
+++ b/Modules/_zstd/zstddict.c
@@ -281,6 +281,6 @@ static PyType_Slot zstddict_slots[] = {
 PyType_Spec zstddict_type_spec = {
     .name = "_zstd.ZstdDict",
     .basicsize = sizeof(ZstdDict),
-    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC,
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
     .slots = zstddict_slots,
 };