Make pathlib ABCs usable by zipfile.Path

Feature or enhancement

This issue covers the final tasks needed to make the pathlib ABCs worthy of using in zipfile.Path (i.e. zipp.Path).

Tasks

• Rename PurePathBase to JoinablePath, and split PathBase into ReadablePath and WritablePath
  • https://github.com/python/cpython/pull/128523
• Make WritablePath a sibling (not subclass) of ReadablePath
  • https://github.com/python/cpython/pull/129014
• Add ReadablePath.info
  • https://github.com/python/cpython/pull/127730
• Subclass abc.ABC from JoinablePath, and make parser abstract
  • https://github.com/python/cpython/pull/128745
• Make type-checking more consistent
  • https://github.com/python/cpython/pull/130199
• Move metadata reading into ReadablePath.info; remove ReadablePath._copy_reader
  • https://github.com/python/cpython/pull/129897
• Move metadata writing into WritablePath._write_info(); remove WritablePath._copy_writer
  • https://github.com/python/cpython/pull/130238
• Merge pathlib._abc into pathlib.types
  • https://github.com/python/cpython/pull/130747
  • https://github.com/python/cpython/pull/130748
• Tests: replace the Dummy* classes with simple zipfile.Path-like implementation
  • https://github.com/python/cpython/pull/131018
• Tests: add tests for WritablePath
  • https://github.com/python/cpython/pull/131112
• Tests: parametrize copy() tests
  • https://github.com/python/cpython/pull/131168
• Finalise copy() implementation
  • https://github.com/python/cpython/pull/131259
• Add type annotations?
• Sync code to pathlib-abc PyPI package
  • https://github.com/python/cpython/pull/131315
• Update pathlib-abc documentation
• Publish new version of pathlib-abc
• Merge PR to jaraco/zipp
  • https://github.com/jaraco/zipp/pull/132

Discussion: https://discuss.python.org/t/make-pathlib-extensible/3428

Linked PRs

• gh-128523
• gh-128745
• gh-129014
• gh-129841
• gh-130199
• gh-130747
• gh-130748
• gh-130964
• gh-131315
• gh-127343
• gh-131617
• gh-131621
• gh-133051
• gh-133105
• gh-133437
• gh-134101
• gh-134104

首先检查 issue 中剩余的未勾选任务，尤其是类型注解以及与 jaraco/zipp PR #132 的 pathlib-abc 集成。在决定是否还有内容需要实现之前，先阅读链接的 pathlib ABC 和 zipfile.Path 工作；完成意味着未完成的任务已经完成，并且相关测试和包同步仍保持一致。