From Fedora Project Wiki
| Macro | Normal Definition | Notes |
|---|---|---|
| __python2 | /usr/bin/python2 | Python 2 interpreter. Also the default python interpreter |
| __python3 | /usr/bin/python3 | Python 3 interpreter |
| python2_sitelib | /usr/lib/python2.X/site-packages | Where pure python2 modules are installed |
| python2_sitearch | /usr/lib64/python2.X/site-packages on x86_64 /usr/lib/python2.X/site-packages on x86 |
Where python2 extension modules that are compiled C are installed |
| python3_sitelib | /usr/lib/python3.X/site-packages | Where pure python3 modules are installed |
| python3_sitearch | /usr/lib64/python3.X/site-packages on x86_64 /usr/lib/python3.X/site-packages on x86 |
Where python3 extension modules that are compiled C are installed |
| py3dir | %{_builddir}/python3-%{name}-%{version}-%{release} | Directory to use when building python3 modules from the same source tarball as python2 modules |
| py_byte_compile | (script) | Defined in python3-devel. See the [#Bytecompiling_with_the_correct_python_version bytecompiling] section for usage |