chore!: drop Python 3.9 support

[gruebel]

This PR

• it looks like a lot of changes, but they are just type annotations
• also updated pytest to v9, which was blocked by dropping Python 3.9 support 😅

Related Issues

Relates open-feature/python-sdk#554

Notes

Don't merge it yet, I want to release some packages before automatically increasing the minor version

[gemini-code-assist]

Summary of Changes

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This pull request modernizes the project's Python environment by removing support for Python 3.9 and upgrading key development dependencies, most notably pytest. The changes primarily involve updating configuration files to reflect the new minimum Python version and refactoring type annotations to utilize Python 3.10's native union syntax, leading to cleaner and more readable code.

Highlights

• Python 3.9 Support Dropped: The project has officially dropped support for Python 3.9, aligning with Python 3.10+.
• Pytest Upgrade: The pytest testing framework has been upgraded to version 9 across various modules.
• Type Annotation Modernization: Numerous type annotations have been updated to use the native | union operator and None instead of typing.Optional and typing.Union, leveraging Python 3.10+ syntax.

Changelog

• hooks/openfeature-hooks-opentelemetry/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-aws-ssm/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the pytest-asyncio dependency to a newer range.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-aws-ssm/src/openfeature/contrib/provider/awsssm/config.py
  • Updated type annotations to use native union syntax (| None) for optional fields.
• providers/openfeature-provider-aws-ssm/src/openfeature/contrib/provider/awsssm/parsers.py
  • Removed Union import from typing.
  • Updated type annotations to use native union syntax (|) for return types.
• providers/openfeature-provider-aws-ssm/src/openfeature/contrib/provider/awsssm/provider.py
  • Adjusted imports from collections.abc and typing.
  • Updated type annotations to use native union syntax (| None) for optional parameters and attributes.
• providers/openfeature-provider-aws-ssm/src/openfeature/contrib/provider/awsssm/ssm_service.py
  • Removed Optional import from typing.
  • Updated type annotations to use native union syntax (| None) for optional parameters and attributes.
• providers/openfeature-provider-aws-ssm/tests/conftest.py
  • Removed Union import from typing.
  • Updated type annotations to use native union syntax (|) for _PatchedAWSResponseContent.content.
• providers/openfeature-provider-env-var/.python-version
  • Removed the Python version file.
• providers/openfeature-provider-env-var/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-env-var/src/openfeature/contrib/provider/envvar/provider.py
  • Updated type annotations to use native union syntax (| None) for optional parameters and (|) for union types.
• providers/openfeature-provider-flagd/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/config.py
  • Updated type annotations to use native union syntax (| None) for optional parameters and attributes, and (|) for union types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/provider.py
  • Updated type annotations to use native union syntax (| None) for optional parameters and (|) for union types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/grpc.py
  • Updated type annotations to use native union syntax (| None) for optional attributes and parameters, and (|) for union types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/in_process.py
  • Updated type annotations to use native union syntax (| None) for optional parameters and (|) for union types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/connector/file_watcher.py
  • Updated type annotation to use native union syntax (| None) for modified_time parameter.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/connector/grpc_watcher.py
  • Updated type annotations to use native union syntax (| None) for optional attributes and return types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/custom_ops.py
  • Added Sequence import from collections.abc.
  • Replaced typing.Union with native union syntax (|) for type aliases JsonPrimitive and JsonLogicArg.
  • Updated type annotations to use native union syntax (| None) for optional return types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/flags.py
  • Updated type annotations to use native union syntax (|) for union types and (| None) for optional attributes and return types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/targeting.py
  • Updated type annotation to use native union syntax (| None) for evaluation_context parameter.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/protocol.py
  • Updated type annotations to use native union syntax (| None) for optional parameters and (|) for union types.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/types.py
  • Updated type annotations to use native union syntax (| None) for optional fields in GrpcMultiCallableArgs.
• providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/sync_metadata_hook.py
  • Updated type annotation to use native union syntax (| None) for the return type of the before method.
• providers/openfeature-provider-flagd/tests/e2e/conftest.py
  • Removed typing import and JsonPrimitive type alias.
• providers/openfeature-provider-flagd/tests/e2e/flagd_container.py
  • Removed typing import.
  • Updated type annotation to use native union syntax (| None) for the feature parameter.
• providers/openfeature-provider-flagd/tests/e2e/step/_utils.py
  • Replaced typing.Union with native union syntax (|) for type aliases JsonObject and JsonPrimitive.
• providers/openfeature-provider-flagd/tests/e2e/step/config_steps.py
  • Removed typing import.
  • Updated type annotation to use native union syntax (|) for convert_resolver_type parameter.
• providers/openfeature-provider-flagd/tests/e2e/step/context_steps.py
  • Removed typing import.
  • Updated type annotation to use native union syntax (|) for the value parameter.
• providers/openfeature-provider-flagd/tests/test_grpc_watcher.py
  • Removed typing import.
  • Updated type annotations to use native union syntax (| None) for optional attributes.
• providers/openfeature-provider-flagd/tests/test_targeting.py
  • Removed typing import.
  • Updated type annotation to use native union syntax (| None) for SemVerTest.result.
• providers/openfeature-provider-flipt/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the types-requests dependency to a newer range and removed a related comment.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-flipt/src/openfeature/contrib/provider/flipt/init.py
  • Adjusted imports from typing to collections.abc.
  • Updated type annotations to use native union syntax (| None) for optional parameters.
• providers/openfeature-provider-ofrep/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the types-requests dependency to a newer range and removed a related comment.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section.
• providers/openfeature-provider-ofrep/src/openfeature/contrib/provider/ofrep/init.py
  • Adjusted imports from collections.abc and typing.
  • Updated TypeMap type alias to use native union syntax (|).
  • Updated type annotations to use native union syntax (| None) for optional parameters and attributes, and (|) for union types.
• providers/openfeature-provider-unleash/README.md
  • Updated the Python requirement from 3.9+ to 3.10+.
• providers/openfeature-provider-unleash/pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the pytest-asyncio dependency to a newer range.
  • Updated the mypy Python version configuration to 3.10.
  • Added a strict configuration for pytest in the tool.pytest section and moved markers under it.
• providers/openfeature-provider-unleash/src/openfeature/contrib/provider/unleash/init.py
  • Adjusted imports from collections.abc and typing.
  • Updated type annotations to use native union syntax (| None) for optional parameters and attributes, and (|) for union types.
• providers/openfeature-provider-unleash/src/openfeature/contrib/provider/unleash/events.py
  • Adjusted imports from collections.abc and typing.
• providers/openfeature-provider-unleash/src/openfeature/contrib/provider/unleash/flag_evaluation.py
  • Adjusted imports from collections.abc and typing.
  • Updated type annotations to use native union syntax (| None) for optional parameters and return types.
• pyproject.toml
  • Updated the minimum required Python version to 3.10.
  • Upgraded the pytest dependency to version 9.
  • Updated the ruff target Python version to 3.10.

Ignored Files

• Ignored by pattern: .github/workflows/** (2)
  • .github/workflows/build.yml
  • .github/workflows/release.yml

Activity

• The author, gruebel, has indicated that the pull request should not be merged yet, as they intend to release some packages before automatically increasing the minor version.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.67%. Comparing base (8592c28) to head (550444d).

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #364      +/-   ##
===========================================
- Coverage   100.00%   95.67%   -4.33%     
===========================================
  Files            2       30      +28     
  Lines           36     1455    +1419     
===========================================
+ Hits            36     1392    +1356     
- Misses           0       63      +63     

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[gemini-code-assist]

Code Review

This pull request drops support for Python 3.9, making 3.10 the new minimum required version. The changes primarily involve updating type hints to use the modern | syntax for unions, which has been applied consistently throughout the codebase. Additionally, pytest has been upgraded to version 9. I've identified a couple of critical issues related to an incorrect dependency version for pytest-asyncio and a faulty type alias definition that will need to be addressed. Otherwise, the changes look good.