Add some types to OLConnection#12113
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RayBB merged 1 commit intointernetarchive:masterfrom Mar 23, 2026
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Pull request overview
This PR adds Python type annotations around the Open Library infobase connection factory and related connection wrappers to reduce ambiguity when tracing the DB connection pathway.
Changes:
- Added type hints to
ConnectionMiddleware.__init__andHybridConnection.__init__. - Refactored
OLConnectionto inline the connection-selection logic and added return typing pluscast(...)for local/remote connections.
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This has been working well on testing and it looks pretty safe to me. The type hints are a great improvement, so let's go with it.
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Small refactor. While investigating the db pathway added some types to clear up ambiguities.
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