Éric Araujo, if that is the case then why does it build what looks like a *.spec file for Python itself?

[scarolan@titania:~/Python-2.7.3]$ head -10 ./build/bdist.linux-x86_64/rpm/SPECS/Python.spec
%define name Python
%define version 2.7.3
%define unmangled_version 2.7.3
%define release 1

Summary: A high-level object-oriented programming language
Name: %{name}
Version: %{version}
Release: %{release}
Source0: %{name}-%{unmangled_version}.tar.gz