Crashes on Python 3.11

[Bobronium]

Official support for python 3.10 was added only to pydantic in version 1.9, however in lib requirements lower version is pinned:

pygls/setup.cfg

Line 28 in 4ce8988

install_requires = pydantic>=1.7,<1.9; typeguard>=2.10.0,<3

Might be fixed in #229
Causes microsoft/vscode-black-formatter#67

Initially I thought it crashes on Python 3.10, but as it turned out, I got it wrong.

[pfmoore]

Is there any progress on Python 3.11 support? With the official release in a day or so, this (or more specifically the related issue in vscode-isort) will become a more significant problem.

[karthiknadig]

@tombh @alcarney Can this issue be prioritized, this is currently impacting about 8 different servers? We might need a temporary solution until pygls 1.0.0 can hit final release.

[tombh]

I have time today, I'll look into it and either fix it or find a temporary workaround.

BTW, what are those servers?

[karthiknadig]

Following are from Microsoft:

• https://github.com/microsoft/vscode-isort
• https://github.com/microsoft/vscode-black-formatter
• https://github.com/microsoft/vscode-pylint
• https://github.com/microsoft/vscode-autopep8
• https://github.com/microsoft/vscode-flake8
• https://github.com/microsoft/vscode-python-tools-extension-template (uses pygls as foundation to create extensions for vscode for tools in python)
  There are others that are from community: jedi-language-server, vscode-ufmt

[tombh]

Quick question, it seems like the fix is to set pydantic>=1.10.2 in order to include their pydantic/pydantic#4012 PR. It seems easy, so I'm wondering if this wasn't suggested before because upgrading Pydantic would break other projects' dependencies?

BTW thanks for the list, could we add them to https://github.com/openlawlibrary/pygls/blob/master/Implementations.md ?

[karthiknadig]

Looking at other issues, it seems like potential breaking changes in pydantic were the reason.

[tombh]

So how about if Pygls set its dependency to pydantic>=1.19.1,<=1.10.2? I'm not familiar enough with Python to know if that's helpful? The idea being that most users will remain unaffected, but that if somebody really needs to use Python 3.11 then they'll need to explicitly install Pydantic 1.10.2.

[brettcannon]

So how about if Pygls set its dependency to pydantic>=1.19.1,<=1.10.2? I'm not familiar enough with Python to know if that's helpful?

You can also do pydantic!=1.9.2,!=1.10.1 .

[brettcannon]

You can also specify that Python 3.11 needs a newer version with pydantic>=1.10.2; python_version>=3.11

[tombh]

Made PR at #279 If it all looks good I can publish today.

[karthiknadig]

#279 looks good

[tombh]

Released https://pypi.org/project/pygls/0.12.3 🚀

[karthiknadig]

@tombh I have a PR to loosen the upper bound on python <3.11 for pydantic, #280 . The upper bound on py<3.11 means that there is no pydantic version that woks for all 3.7-3.11.

[brettcannon]

FYI Python 3.11.0 is now out: https://www.python.org/downloads/release/python-3110/ .