This is an ebuild for PyQt version 3.16, the latest stable release at this time. This release can be installed in parallel with PyQt 4. The ebuild is based on that for PyQt 3.15.1, as it currently exists in Portage. It updates the SRC_URI and adds "-y qt-mt" to the configure options. That's all. The qt-mt variant of Qt always seems to be built in Gentoo; hardcoding it in the ebuild should thus not be a problem.
Created attachment 83974 [details] dev-python/PyQt-3.16.ebuild
*** This bug has been marked as a duplicate of 127606 ***