dev-python/typing and dev-python/mypy install the same files like /usr/lib64/python3.4/site-packages/typing.py Probably they should block each other.
* Detected file collision(s): * * /usr/lib64/python3.4/site-packages/typing.py * * Searching all installed packages for file collisions... * * Press Ctrl-C to Stop * * dev-python/typing-3.5.0.1:0::gentoo * /usr/lib64/python3.4/site-packages/typing.py * * Package 'dev-python/mypy-0.2.0-r1' NOT merged due to file collisions. * If necessary, refer to your elog messages for the whole content of the * above message. * GNU info directory index is up-to-date.
Can either of you confirm that this only affects 0.2.0? The latest version should depend on typing. If it's just 0.2.0, I'll add the blocker there and it'll be out of the tree in a couple of releases.