from pydantic import v1 as pydantic

[polyzen]

Basic pydantic V2 support.

Fixes #15858

Pull Request Checklist

• [x] Pull request is based on the develop branch
• [x] Pull request includes a changelog file. The entry should:
  • Be a short description of your change which makes sense to users. "Fixed a bug that prevented receiving messages from other servers." instead of "Moved X method from EventStore to EventWorkerStore.".
  • Use markdown where necessary, mostly for code blocks.
  • End with either a period (.) or an exclamation mark (!).
  • Start with a capital letter.
  • Feel free to credit yourself, by adding a sentence "Contributed by @github_username." or "Contributed by [Your Name]." to the end of the entry.
• [x] Pull request includes a sign off
• [ ] Code style is correct (run the linters)

[polyzen]

After running poetry lock --no-update and poetry install in order to try to run the linters, I received the following error:

~/r/synapse > poetry install
Installing dependencies from lock file

Package operations: 41 installs, 0 updates, 0 removals

  • Installing click-default-group (1.2.2): Failed

  TypeError

  Can't instantiate abstract class IsolatedEnv with abstract methods make_extra_environ, python_executable

  at /usr/lib/python3.11/site-packages/poetry/installation/chef.py:109 in _prepare
      105│     ) -> Path:
      106│         from subprocess import CalledProcessError
      107│
      108│         with ephemeral_environment(self._env.python) as venv:
    → 109│             env = IsolatedEnv(venv, self._pool)
      110│             builder = ProjectBuilder(
      111│                 directory,
      112│                 python_executable=env.executable,
      113│                 scripts_dir=env.scripts_dir,

[clokep]

See also #16332.