Remove: 移除 Python 3.9 支持

[shoucandanghehe]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 99.10714% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.76%. Comparing base (7a83fd0) to head (1c3a7c0).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
nonebot/internal/driver/model.py	96.15%	1 Missing ⚠️
nonebot/utils.py	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3860      +/-   ##
==========================================
- Coverage   93.83%   93.76%   -0.07%     
==========================================
  Files          48       48              
  Lines        4360     4349      -11     
==========================================
- Hits         4091     4078      -13     
- Misses        269      271       +2     

Flag	Coverage Δ
unittests	93.76% <99.10%> (-0.07%)	⬇️

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[Copilot]

Pull request overview

This pull request removes Python 3.9 support from the codebase and migrates to Python 3.10+ type annotation syntax. The migration primarily involves replacing Union[X, Y] and Optional[X] with the PEP 604 union syntax X | Y and X | None, updating imports of Callable to use collections.abc, moving TypeAlias, get_args, and get_origin from typing_extensions to the typing module, and removing version-specific compatibility code.

Changes:

• Updated minimum Python version requirement from 3.9 to 3.10 in pyproject.toml and removed Python 3.9 from CI/CD test matrix
• Migrated type annotations throughout the codebase to use PEP 604 union syntax (X | Y instead of Union[X, Y])
• Updated import statements to use Python 3.10+ standard library locations for Callable, TypeAlias, get_args, and get_origin
• Removed version compatibility checks for Python 3.9 and simplified NONE_TYPES constant

Reviewed changes

Copilot reviewed 55 out of 56 changed files in this pull request and generated 16 comments.

Show a summary per file

File	Description
pyproject.toml	Updated Python version requirement to >=3.10 and updated ruff/pyright target versions
.github/workflows/codecov.yml	Removed Python 3.9 from test matrix
nonebot/typing.py	Removed sys.version_info checks for Python 3.9, moved TypeAlias/get_args/get_origin to typing, updated NONE_TYPES
nonebot/utils.py	Migrated Union/Optional to new syntax, moved Callable import to collections.abc
nonebot/rule.py	Migrated type annotations to new union syntax, removed Optional/Union imports
nonebot/plugin/on.py	Migrated type annotations to new union syntax, removed Union import
nonebot/plugin/model.py	Migrated Optional annotations to new syntax
nonebot/plugin/manager.py	Migrated Optional annotations to new syntax, removed Optional import
nonebot/plugin/load.py	Migrated Union/Optional annotations to new syntax, removed imports
nonebot/plugin/init.py	Migrated Optional annotations to new syntax
nonebot/params.py	Migrated type annotations, moved Callable import, removed Union import
nonebot/message.py	Migrated type annotations, moved Callable import, removed Union/Optional imports
nonebot/internal/rule.py	Partially migrated - still has mixed Union usage
nonebot/internal/permission.py	Partially migrated - still has mixed Union usage
nonebot/internal/params.py	Mostly migrated but retains Optional import for legacy usage
nonebot/internal/matcher/matcher.py	Migrated type annotations, removed Union import
nonebot/internal/matcher/manager.py	Migrated Union annotations, removed Union import from typing
nonebot/internal/driver/model.py	Partially migrated - still uses Union for forward references
nonebot/internal/driver/combine.py	Migrated Union annotations, removed Union import
nonebot/internal/driver/abstract.py	Migrated Union annotations, moved TypeAlias, removed Union import
nonebot/internal/driver/_lifespan.py	Migrated type annotations, moved Callable/TypeAlias, removed Union import
nonebot/internal/adapter/template.py	Migrated type annotations, moved Callable/TypeAlias, removed Optional/Union imports
nonebot/internal/adapter/message.py	Migrated type annotations, removed Optional/Union imports
nonebot/internal/adapter/bot.py	Updated one annotation to new syntax (exception type)
nonebot/exception.py	Migrated Optional annotations, removed Optional import
nonebot/drivers/*	Migrated type annotations, moved Callable imports, removed Union/Optional imports
nonebot/dependencies/*	Migrated type annotations, moved Callable import
nonebot/config.py	Migrated type annotations, moved TypeAlias, removed Union/Optional imports
nonebot/compat.py	Migrated type annotations, moved Callable import, removed Optional/Union imports
nonebot/init.py	Migrated type annotations, removed Optional/Union imports
tests/*	Migrated type annotations, removed Union/Optional imports, added test for new syntax

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[Copilot]

Pull request overview

Copilot reviewed 55 out of 56 changed files in this pull request and generated 3 comments.

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[github-actions]

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