Override %__python3 based on %python3_pkgversion

macros.epel-rpm-macros

@@ -13,6 +13,28 @@
 # Use the non-underscored Python macros to refer to Python in spec, etc.
 %python2 %__python2
 
+# This macro is copied here from https://git.centos.org/rpms/python-rpm-macros/pull-request/1
+# and is needed for the overrides in macros.zzz-epel-override.
+# It will be removed once it lands in RHEL.
+#
+# RHEL 9+ and Fedora compatibility macro
+# Only use in macro backports, not intended to be used in spec files!
+# In the future, the %%python3_pkgversion macro has a dot, e.g. 3.9 or 3.11
+# However, in RHEL 8 at least, it does not, e.g. 38, 39
+# This is a helpful macro that determines the proper "Python version" string with dot
+# from %%python3_pkgversion without actually having Python installed.
+# For values other than 3X, it should expand to %%python3_pkgversion unchanged.
+# Examples of %%python3_pkgversion -> %%_python3_pkgversion_with_dot:
+#   3    -> 3
+#   38   -> 3.8
+#   39   -> 3.9
+#   310  -> 3.10
+#   3.12 -> 3.12
+#   4    -> 4
+#   412  -> 412
+%_python3_pkgversion_with_dot %{lua:print((rpm.expand("%python3_pkgversion"):gsub('^3(%d)', '3.%1')))}
+
+
 # Users can use %%python only if they redefined %%__python (e.g. to %%__python3)
 %python() %{lua:\
     __python = rpm.expand("%__python")\

macros.zzz-epel-override

@@ -1,3 +1,8 @@
 # This file is used _only_ to override macros which exist in RHEL.
 # It should be used very sparingly.
 
+# Override %__python3 here based on %%python3_pkgversion to avoid relying on the finicky
+# python3X-rpm-macros packages.
+# Backported from https://src.fedoraproject.org/rpms/python-rpm-macros/c/a8b26546eb699afe0dbfcef913a2aa7085fc5afb?branch=rawhide
+%__python3 /usr/bin/python%{_python3_pkgversion_with_dot}
+