Conflict with old Python versions that use the old unversioned wheel location

Resolves: rhbz#1982668

python-pip.spec

@@ -21,7 +21,7 @@
 
 Name:           python-%{srcname}
 Version:        %{base_version}%{?prerel:~%{prerel}}
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A tool for installing and managing Python packages
 
 # We bundle a lot of libraries with pip, which itself is under MIT license.
@@ -233,6 +233,11 @@ Requires:       ca-certificates
 Provides:       %{name}-wheel = %{version}-%{release}
 Obsoletes:      %{name}-wheel < %{version}-%{release}
 
+# Older versions of python3-libs expect Python wheels at the old unversioned
+# location, so we conflict with the old Python versions that wouldn't work with
+# the new wheel location.
+Conflicts:      python3-libs < 3.9.9-2
+
 # Virtual provides for the packages bundled by pip:
 %{bundled 3}
 
@@ -398,6 +403,10 @@ pytest_k='not completion and
 %{python_wheel_dir}/%{python_wheel_name}
 
 %changelog
+* Wed Nov 24 2021 Tomas Orsava <torsava@redhat.com> - 21.2.3-5
+- Conflict with old Python versions that use the old unversioned wheel location
+- Resolves: rhbz#1982668
+
 * Wed Sep 22 2021 Tomas Orsava <torsava@redhat.com> - 21.2.3-4
 - Make the python-pip-wheel subpackage versioned (python3-pip-wheel),
   and move its contents to a versioned directory /usr/share/python3-wheels