Don't import deprecated sre_parse and sre_constants modules

Related to https://bugzilla.redhat.com/show_bug.cgi?id=2098971#c6

python-lark-parser.spec

@@ -2,11 +2,16 @@
 
 Name:           python-%{pypi_name}
 Version:        0.9.0
-Release:        6%{?dist}
+Release:        7%{?dist}
 Summary:        Lark is a modern general-purpose parsing library for Python
 License:        MIT
 Url:            https://github.com/lark-parser/lark
 Source:         https://files.pythonhosted.org/packages/source/l/%{pypi_name}/%{pypi_name}-%{version}.tar.gz
+
+# Adjust imports for Python 3.11, merged upstream
+# https://github.com/lark-parser/lark/pull/1140
+Patch:          python3.11.patch
+
 BuildArch:      noarch
 
 %description
@@ -74,7 +79,7 @@ Features:
 - Unicode fully supported
 
 %prep
-%autosetup -n %{pypi_name}-%{version}
+%autosetup -p1 -n %{pypi_name}-%{version}
 
 %build
 %py3_build
@@ -93,6 +98,9 @@ rm -rfv %{buildroot}/%{python3_sitelib}/lark-stubs/
 %{python3_sitelib}/lark/
 
 %changelog
+* Thu Jul 07 2022 Miro Hrončok <mhroncok@redhat.com> - 0.9.0-7
+- Don't import deprecated sre_parse and sre_constants modules
+
 * Mon Jun 13 2022 Python Maint <python-maint@redhat.com> - 0.9.0-6
 - Rebuilt for Python 3.11
 

python3.11.patch

@@ -0,0 +1,33 @@
+From 7bbb353dd258905510289bda3de87a8354daca3c Mon Sep 17 00:00:00 2001
+From: Florian Bruhin <me@the-compiler.org>
+Date: Tue, 26 Apr 2022 13:37:12 +0200
+Subject: [PATCH] Adjust imports for Python 3.11
+
+sre_parse and sre_constants are deprecated in 3.11, see https://github.com/python/cpython/issues/91308
+---
+ lark/utils.py | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/lark/utils.py b/lark/utils.py
+index 36f50d1..29d998b 100644
+--- a/lark/utils.py
++++ b/lark/utils.py
+@@ -173,8 +173,13 @@ except ImportError:
+ import sys, re
+ Py36 = (sys.version_info[:2] >= (3, 6))
+ 
+-import sre_parse
+-import sre_constants
++if sys.version_info >= (3, 11):
++    import re._parser as sre_parse
++    import re._constants as sre_constants
++else:
++    import sre_parse
++    import sre_constants
++
+ categ_pattern = re.compile(r'\\p{[A-Za-z_]+}')
+ def get_regexp_width(expr):
+     if regex:
+-- 
+2.35.3
+