Thank you Udi. This is very helpful. I added a few comments. Overall proposed changes make sense to me.
*From: *Udi Meiri <eh...@google.com> *Date: *Wed, May 8, 2019 at 9:29 AM *To: * <dev@beam.apache.org> Hi, > I've written a document, with input from robertwb@, detailing the > direction forward I want to take type hints in Python 3. The document > contains background, a survey of existing type tools, and example usage. > The summary of proposed changes is: > > > 1. > > Update Beam's type hinting support to work with Python 3, with minimal > changes and keeping backwards compatibility. > 1. > > Support Py3 type hints. > 2. > > Fix trivial_inference module to work with Py3 bytecode. > 2. > > Migrate to standard typing module types, to make it easier to migrate > to using external packages later on. > 3. > > Start using external typing packages to simplify maintenance and add > features (such as better inference). > > > Any comments would be welcome here or on the doc. > > doc: > https://docs.google.com/document/d/15bsOL3YcUWuIjnxqhi9nanhj2eh9S6-QlLYuL7ufcXY/edit?usp=sharing > JIRA: https://issues.apache.org/jira/browse/BEAM-7060 >
