- add python312-syntax-warning.patch for python 3.12 support

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-graphviz?expand=0&rev=31

python312-syntax-warning.patch

@@ -0,0 +1,30 @@
+From 5ce9fc5de4f2284baa27d7a8d68ab0885d032868 Mon Sep 17 00:00:00 2001
+From: Sebastian Bank <sebastian.bank@uni-leipzig.de>
+Date: Tue, 24 Oct 2023 20:39:52 +0200
+Subject: [PATCH] expect SyntaxWarning in test_deprecated_escape() under Python
+ 3.12
+
+https://docs.python.org/3.12/whatsnew/3.12.html#other-language-changes
+---
+ tests/test_quoting.py | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+Index: graphviz-0.20.1/tests/test_quoting.py
+===================================================================
+--- graphviz-0.20.1.orig/tests/test_quoting.py
++++ graphviz-0.20.1/tests/test_quoting.py
+@@ -1,3 +1,4 @@
++import sys
+ import warnings
+ 
+ import pytest
+@@ -14,7 +15,8 @@ def test_deprecated_escape(recwarn, char
+     escape = eval(rf'"\{char}"')
+ 
+     assert len(recwarn) == 1
+-    w = recwarn.pop(DeprecationWarning)
++    w = recwarn.pop(DeprecationWarning if sys.version_info < (3, 12)
++                    else SyntaxWarning)
+     assert str(w.message).startswith('invalid escape sequence')
+ 
+     assert escape == f'\\{char}'