Fixes issue I've been having running pipenv as an editable install on windows.

[matteius]

The issue

Ever since upgrading to pydantic in pipenv, I've had issues running it on windows when its an editable install. I am not convinced its not an environment issue but I searched far and wide and continued to get:

[pipenv.exceptions.InstallError]: Traceback (most recent call last):
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\patched\pip\__pip-runner__.py", line 50, in <module>
[pipenv.exceptions.InstallError]:     runpy.run_module("pip", run_name="__main__", alter_sys=True)
[pipenv.exceptions.InstallError]:   File "<frozen runpy>", line 226, in run_module
[pipenv.exceptions.InstallError]:   File "<frozen runpy>", line 98, in _run_module_code
[pipenv.exceptions.InstallError]:   File "<frozen runpy>", line 88, in _run_code
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\patched\pip\__main__.py", line 35, in <module>
[pipenv.exceptions.InstallError]:     spec.loader.exec_module(pipenv)
[pipenv.exceptions.InstallError]:   File "<frozen importlib._bootstrap_external>", line 940, in exec_module
[pipenv.exceptions.InstallError]:   File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\__init__.py", line 5, in <module>
[pipenv.exceptions.InstallError]:     from pipenv.cli import cli
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\cli\__init__.py", line 1, in <module>
[pipenv.exceptions.InstallError]:     from .command import cli  # noqa
[pipenv.exceptions.InstallError]:     ^^^^^^^^^^^^^^^^^^^^^^^^
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\cli\command.py", line 4, in <module>
[pipenv.exceptions.InstallError]:     from pipenv import environments
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\environments.py", line 8, in <module>
[pipenv.exceptions.InstallError]:     from pipenv.utils.shell import env_to_bool, is_env_truthy, isatty
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\utils\shell.py", line 15, in <module>
[pipenv.exceptions.InstallError]:     from pipenv.vendor.pythonfinder.utils import ensure_path
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\vendor\pythonfinder\__init__.py", line 4, in <module>
[pipenv.exceptions.InstallError]:     from .models import SystemPath
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\vendor\pythonfinder\models\__init__.py", line 3, in <module>
[pipenv.exceptions.InstallError]:     from .path import SystemPath
[pipenv.exceptions.InstallError]:   File "C:\Users\matte\Projects\pipenv\pipenv\vendor\pythonfinder\models\path.py", line 23, in <module>
[pipenv.exceptions.InstallError]:     from pipenv.vendor.pydantic import Field, root_validator
[pipenv.exceptions.InstallError]:   File "pydantic\__init__.py", line 2, in init pydantic.__init__
[pipenv.exceptions.InstallError]:
[pipenv.exceptions.InstallError]:   File "pydantic\dataclasses.py", line 41, in init pydantic.dataclasses
[pipenv.exceptions.InstallError]:     # +=========+=========================================+

The fix

Make sure typing_extensions from the pip vendor is available in both the resolver and the main pipenv process.

[oz123]

LGTM