Make python-setuptools-wheel work with Python 3.9

python-setuptools.spec

@@ -19,7 +19,7 @@
 Name:           python-setuptools
 # When updating, update the bundled libraries versions bellow!
 Version:        40.8.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Easily build and distribute Python packages
 # setuptools is MIT
 # packaging is BSD or ASL 2.0
@@ -35,6 +35,10 @@ Source0:        %{pypi_source %{srcname} %{version} zip}
 # https://bugzilla.redhat.com/show_bug.cgi?id=1576924
 Patch0:         create-site-packages.patch
 
+# Make setuptools compatible with Python 3.9, backported from setuptools 41.1+
+# https://github.com/pypa/setuptools/pull/1788
+Patch1:         python39.patch
+
 BuildArch:      noarch
 
 BuildRequires:  gcc
@@ -255,6 +259,9 @@ PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=$(pwd) py.test-%{python3_version} --ignore=
 
 
 %changelog
+* Tue Nov 26 2019 Miro Hrončok <mhroncok@redhat.com> - 40.8.0-2
+- Make python-setuptools-wheel work with Python 3.9
+
 * Tue Feb 05 2019 Miro Hrončok <mhroncok@redhat.com>
 - Update to 40.8.0 (#1672756)
 - https://github.com/pypa/setuptools/blob/v40.8.0/CHANGES.rst

python39.patch

@@ -0,0 +1,26 @@
+From 53b8db359378f436bfd88f90a90aaf01b650d3a6 Mon Sep 17 00:00:00 2001
+From: Inada Naoki <songofacandy@gmail.com>
+Date: Tue, 18 Jun 2019 16:15:25 +0900
+Subject: [PATCH] Stop using deprecated HTMLParser.unescape
+
+HTMLParser.unescape is accessed even when unused - this will cause an
+exception when `HTMLParser.unescape` is removed in Python 3.9.
+---
+ setuptools/py33compat.py    | 6 +++++-
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+ create mode 100644 changelog.d/1788.change.rst
+
+diff --git a/setuptools/py33compat.py b/setuptools/py33compat.py
+index 87cf53983..cb6944363 100644
+--- a/setuptools/py33compat.py
++++ b/setuptools/py33compat.py
+@@ -52,4 +52,8 @@ def __iter__(self):
+ Bytecode = getattr(dis, 'Bytecode', Bytecode_compat)
+ 
+ 
+-unescape = getattr(html, 'unescape', html_parser.HTMLParser().unescape)
++unescape = getattr(html, 'unescape', None)
++if unescape is None:
++    # HTMLParser.unescape is deprecated since Python 3.4, and will be removed
++    # from 3.9.
++    unescape = html_parser.HTMLParser().unescape