https://fedoraproject.org/wiki/Changes/Python3.9

Also switch to PEP 503 based %py_dist_name (see rhbz#1791530)

macros.python-srpm

@@ -38,15 +38,15 @@
 # Python spec files use the version defined here to determine defaults for the
 # %%py_provides and %%python_provide macros, as well as for the "pythonname" generator that
 # provides python3-foo for python3.XX-foo and vice versa for the default "main" version.
-# E.g. in Fedora 32, python3.8-foo will provide python3-foo,
-#                    python3-foo will provide python3.8-foo.
+# E.g. in Fedora 33, python3.9-foo will provide python3-foo,
+#                    python3-foo will provide python3.9-foo.
 #
 # There are two macros:
 #
 # This always contains the major.minor version (with dots), default for %%python3_version.
-%__default_python3_version 3.8
+%__default_python3_version 3.9
 #
-# The pkgname version that determines the alternative provide name (e.g. python3.8-foo),
+# The pkgname version that determines the alternative provide name (e.g. python3.9-foo),
 # set to the same as above, but historically hasn't included the dot.
 # This is left intentionally a separate macro, in case the naming convention ever changes.
 %__default_python3_pkgversion %__default_python3_version
@@ -70,7 +70,7 @@
 # Converts Python dist name to a canonical format
 %py_dist_name() %{lua:\
         name = rpm.expand("%{?1:%{1}}");\
-        canonical = string.gsub(string.lower(name), "[^%w%.]+", "-");\
+        canonical = string.gsub(string.lower(name), "%W+", "-");\
         print(canonical);\
 }
 

python-rpm-macros.spec

@@ -1,6 +1,6 @@
 Name:           python-rpm-macros
-Version:        3.8
-Release:        8%{?dist}
+Version:        3.9
+Release:        1%{?dist}
 Summary:        The common Python RPM macros
 
 # macros and lua: MIT, compileall2.py: PSFv2
@@ -107,6 +107,10 @@ install -m 644 compileall2.py %{buildroot}%{_rpmconfigdir}/redhat/
 
 
 %changelog
+* Thu May 21 2020 Miro Hrončok <mhroncok@redhat.com> - 3.9-1
+- https://fedoraproject.org/wiki/Changes/Python3.9
+- Switch the %%py_dist_name macro to convert dots (".") into dashes as defined in PEP 503 (#1791530)
+
 * Mon May 11 2020 Miro Hrončok <mhroncok@redhat.com> - 3.8-8
 - Implement %%pytest
 - Implement %%pyX_shebang_fix