[Cosmos] refactor dict and list #43244
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Pull Request Overview
This PR refactors type hints throughout the Azure Cosmos DB SDK codebase to use native Python types dict and list instead of importing Dict and List from the typing module. This modernization aligns with Python 3.9+ best practices where the built-in collection types can be used directly as generic types.
- Updates all type annotations from
Dict[...]todict[...]andList[...]tolist[...] - Removes unused imports of
DictandListfrom typing modules - Maintains backward compatibility while modernizing the codebase
Reviewed Changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 7 comments.
Show a summary per file
| File | Description |
|---|---|
| test files | Updated type hints in test files and fault injection transport |
| core API files | Modernized type annotations in user.py, scripts.py, partition_key.py |
| database.py | Updated all Dict/List type hints to use native dict/list types |
| cosmos_client.py | Refactored type annotations throughout client connection code |
| container.py | Updated extensive type hints for container operations and queries |
| async implementation files | Modernized type hints in all async variants of core modules |
13 tasks
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/azp run python - cosmos - tests |
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/azp run python - cosmos - tests |
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allenkim0129
reviewed
Oct 6, 2025
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Tackling the refactoring bullet-point from #43211. This PR refactors all instances of the
typingmodule's Dict and List to the Python-nativedictandlist.We are also changing the minimum Python version supported to 3.9 as per the Azure Core guidelines.
Core dropped Python 3.8 already 6 months ago: #40831