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Ahmet Altay commented on BEAM-7060: ----------------------------------- [~chadrik] thank you for your comments. These are still open questions. Please comment on Udi's document (linked above). We would love to hear your thoughts on it. > Design Py3-compatible typehints annotation support in Beam 3. > ------------------------------------------------------------- > > Key: BEAM-7060 > URL: https://issues.apache.org/jira/browse/BEAM-7060 > Project: Beam > Issue Type: Sub-task > Components: sdk-py-core > Reporter: Valentyn Tymofieiev > Assignee: Udi Meiri > Priority: Major > > Existing [Typehints implementaiton in > Beam|[https://github.com/apache/beam/blob/master/sdks/python/apache_beam/typehints/ > ] heavily relies on internal details of CPython implementation, and some of > the assumptions of this implementation broke as of Python 3.6, see for > example: https://issues.apache.org/jira/browse/BEAM-6877, which makes > typehints support unusable on Python 3.6 as of now. [Python 3 Kanban > Board|https://issues.apache.org/jira/secure/RapidBoard.jspa?rapidView=245&view=detail] > lists several specific typehints-related breakages, prefixed with "TypeHints > Py3 Error". > We need to decide whether to: > - Deprecate in-house typehints implementation. > - Continue to support in-house implementation, which at this point is a stale > code and has other known issues. > - Attempt to use some off-the-shelf libraries for supporting > type-annotations, like Pytype, Mypy, PyAnnotate. > WRT to this decision we also need to plan on immediate next steps to unblock > adoption of Beam for Python 3.6+ users. One potential option may be to have > Beam SDK ignore any typehint annotations on Py 3.6+. > cc: [~udim], [~altay], [~robertwb]. -- This message was sent by Atlassian JIRA (v7.6.3#76005)