Improve spec-file formatting and style

- Modernize a few details (as far as is possible in EPEL8)

python-re-assert.spec

@@ -1,54 +1,56 @@
-%global srcname re_assert
-%global pkgname re-assert
-
-Name:    python-%{pkgname}
-Version: 1.1.0
-Release: %autorelease
-Summary: Show where your regex match assertion failed!
+Name:           python-re-assert
+Version:        1.1.0
+Release:        %autorelease
+Summary:        Show where your regex match assertion failed
 
 # SPDX
-License: MIT
-URL:     https://github.com/asottile/re-assert
-# The PyPI sdist lacks the tests, so we must use the GitHub archive
-Source0: %{url}/archive/v%{version}/re-assert-%{version}.tar.gz
+License:        MIT
+URL:            https://github.com/asottile/re-assert
+Source0:        %{url}/archive/v%{version}/re-assert-%{version}.tar.gz
 
-BuildArch: noarch
+BuildArch:      noarch
 
-BuildRequires: python3-devel
-BuildRequires: python3dist(setuptools)
+BuildRequires:  python3-devel
+BuildRequires:  %{py3_dist setuptools}
 
 # For tests
-BuildRequires: python3dist(pytest)
-BuildRequires: python3dist(regex)
+BuildRequires:  %{py3_dist pytest}
+BuildRequires:  %{py3_dist regex}
 
-%global _description %{expand:
-Show where your regex match assertion failed!}
+%global common_description %{expand:
+%{summary}!}
 
-%description %{_description}
+%description %{common_description}
 
-%package -n python3-%{pkgname}
+
+%package -n python3-re-assert
 Summary: %summary
 
-%py_provides python3-%{pkgname}
-%description -n python3-%{pkgname} %{_description}
+%py_provides python3-re-assert
+%description -n python3-re-assert %{common_description}
+
 
 %prep
-%autosetup -n %{pkgname}-%{version}
+%autosetup -n re-assert-%{version}
+
 
 %build
 %py3_build
 
+
 %install
 %py3_install
 
+
 %check
 %pytest
 
-%files -n python3-%{pkgname}
+
+%files -n python3-re-assert
 %license LICENSE
-%{python3_sitelib}/re_assert.py
-%{python3_sitelib}/__pycache__/re_assert.*.pyc
-%{python3_sitelib}/%{srcname}-*.egg-info/
+
+%pycached %{python3_sitelib}/re_assert.py
+%{python3_sitelib}/re_assert-%{version}-py%{python3_version}.egg-info/
 
 
 %changelog