During the PyCon sprints, I'm planning to bash the pytype pyi
parser into shape so we can handle all of third_party. As a first
step, create an explicit blacklist of everything pytype chokes on.
With today's release, pytype is able to fully load
stdlib/3/collections/__init__.pyi, so the test no longer needs the
ability to partially parse stubs using the pytd tool. Removing this
functionality allows the test code to be simplified considerably.
Speeds up pytype considerably by directly calling pytype.io.parse_pyi
rather than running `pytype --parse-pyi` in a subprocess.
The subprocess logic is still required to handle the one pyi file
marked `# parse only` in the pytype blacklist. Once
https://github.com/google/pytype/issues/242 is fixed, the test code
can be cleaned up considerably.
* Moves the pytype installation to requirements-tests-py3.txt, now
that pytype can run under Python 3.5+.
* Changes tests/pytype_test.py to not require a --python{version}-exe
argument when it can automatically find the Python interpreter, and
cleans up a few typos and out-of-date things.
* Updates the appropriate documentation.
* Updates .travis.yml.
* Add parts of third_party/ to pytype_test.
Pytype uses six and mypy_extensions, so these pyi files should be
tested with pytype.
* Remove newly loadable pyi files from pytype_blacklist.
Rebecca Chen