chore(robot-server): Add sqlalchemy2-stubs #9773
Merged
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Overview
This PR adds the
sqlalchemy2-stubs
package as a robot-server dev dependency.Background
The SQLAlchemy type-checking situation seems pretty bad:
SQLAlchemy 2 promises to do it right, but there's no scheduled release date for it.
SQLAlchemy 1.4 appears to require at least standalone stubs, plus maybe also a mypy plugin.
sqlalchemy2-stubs
is the official solution, despite being proclaimed in various places to be unstable. (It "should now be considered as legacy, even though it is still necessary for full Mypy support when using SQLAlchemy 1.4." 🙃)There's also
sqlalchemy-stubs
(without the2
), a more mature set of stubs published by DropBox. However, its support for SQLAlchemy 1.4 seems spotty.Review requests
sqlalchemy2-stubs
is the least bad option, for now?Risk assessment
No risk to production code. This just adds a dev dependency.