Drop the dependency on six to make the package lighter

39a70cce.patch

@@ -0,0 +1,51 @@
+From 39a70cce69d9b08cc4d02b225114d556d5b59ada Mon Sep 17 00:00:00 2001
+From: Hugo van Kemenade <hugovk@users.noreply.github.com>
+Date: Wed, 19 Aug 2020 22:37:34 +0300
+Subject: [PATCH] Remove dependency on six to make package lighter (#331)
+
+---
+ packaging/requirements.py | 8 +++++++-
+ setup.py                  | 2 +-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/packaging/requirements.py b/packaging/requirements.py
+index 91f81ed..2226e98 100644
+--- a/packaging/requirements.py
++++ b/packaging/requirements.py
+@@ -5,16 +5,22 @@
+ 
+ import string
+ import re
++import sys
+ 
+ from pyparsing import stringStart, stringEnd, originalTextFor, ParseException
+ from pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
+ from pyparsing import Literal as L  # noqa
+-from six.moves.urllib import parse as urlparse
+ 
+ from ._typing import TYPE_CHECKING
+ from .markers import MARKER_EXPR, Marker
+ from .specifiers import LegacySpecifier, Specifier, SpecifierSet
+ 
++if sys.version_info[0] >= 3:
++    from urllib import parse as urlparse  # pragma: no cover
++else:  # pragma: no cover
++    import urlparse
++
++
+ if TYPE_CHECKING:  # pragma: no cover
+     from typing import List
+ 
+diff --git a/setup.py b/setup.py
+index f533a7d..a14d926 100644
+--- a/setup.py
++++ b/setup.py
+@@ -49,7 +49,7 @@
+     author=about["__author__"],
+     author_email=about["__email__"],
+     python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
+-    install_requires=["pyparsing>=2.0.2", "six"],  # Needed to avoid issue #91
++    install_requires=["pyparsing>=2.0.2"],  # Needed to avoid issue #91
+     classifiers=[
+         "Development Status :: 5 - Production/Stable",
+         "Intended Audience :: Developers",

python-packaging.spec

@@ -13,7 +13,7 @@
 
 Name:           python-%{pypi_name}
 Version:        20.4
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Core utilities for Python packages
 
 License:        BSD or ASL 2.0
@@ -21,10 +21,12 @@ URL:            https://github.com/pypa/packaging
 Source0:        https://files.pythonhosted.org/packages/source/p/%{pypi_name}/%{pypi_name}-%{version}.tar.gz
 BuildArch:      noarch
 
+# Remove dependency on six to make package lighter, backported from upstream
+Patch1:         %{url}/commit/39a70cce.patch
+
 BuildRequires:  python%{python3_pkgversion}-setuptools
 BuildRequires:  python%{python3_pkgversion}-devel
 BuildRequires:  python%{python3_pkgversion}-pyparsing
-BuildRequires:  python%{python3_pkgversion}-six
 %if %{with tests}
 BuildRequires:  python%{python3_pkgversion}-pytest
 BuildRequires:  python%{python3_pkgversion}-pretend
@@ -47,7 +49,6 @@ Summary:        %{summary}
 %{?python_provide:%python_provide python%{python3_pkgversion}-%{pypi_name}}
 
 Requires:       python%{python3_pkgversion}-pyparsing
-Requires:       python%{python3_pkgversion}-six
 
 %description -n python%{python3_pkgversion}-%{pypi_name}
 python3-packaging provides core utilities for Python packages like utilities for
@@ -62,7 +63,7 @@ Documentation for python-packaging
 %endif
 
 %prep
-%autosetup -n %{pypi_name}-%{version}
+%autosetup -p1 -n %{pypi_name}-%{version}
 # Remove bundled egg-info
 rm -rf %{pypi_name}.egg-info
 
@@ -111,6 +112,9 @@ tests/
 %endif
 
 %changelog
+* Fri Oct 02 2020 Miro Hrončok <mhroncok@redhat.com> - 20.4-3
+- Drop the dependency on six to make the package lighter
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 20.4-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild