Registry / devops / python-language-server

python-language-server

library0.36.2pypypi✓ verified 34d ago

An implementation of the Language Server Protocol (LSP) for Python. Version 0.36.2 is the final release; the project is deprecated in favor of python-lsp-server (a community fork) and pyright/pylance. It provides IDE features like autocompletion, linting, code navigation, and refactoring.

devops

github ↗package ↗

Install & Compatibility

Where this runs

tested against v0.36.2 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.048s · 33.1MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 2.5s · import 0.042s · 30MB

29MB installed

● package 29MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

The main entry point is the `pyls` module; direct imports of internal submodules are unsupported.

import pyls

Basic usage: the server is typically started by an editor plugin. The `pyls` module provides a `ProcessServer` class for programmatic launching.

# Start the language server (usually launched by an editor plugin) # For manual testing, run: # pyls # In code, you can invoke the server programmatically: import pyls server = pyls.ProcessServer() print("Python Language Server started. Use an LSP client to connect.")

pyls --version

Debug

Known footguns

deprecatedpython-language-server is deprecated. The Palantir project has been archived and no longer maintained. Users should migrate to python-lsp-server (community fork) or pyright/pylance.

breakingIn version 0.36.0, the configuration format changed. Options that were previously under 'pyls' section are now under the tool's name (e.g., 'pyls.plugins' moved to 'pyls.plugins.jedi' etc.).

gotchaThe package name on PyPI is python-language-server, but the import module is 'pyls'. Many users mistakenly try `import python_language_server` or `import pyls` with wrong casing.

Upgrade

Version history

Breaking-change detection hasn't run for this library yet.

Audit

Security & dependencies

CVE tracking and dependency tree are planned for a later release.

Agent activity

11 hits · last 30 days

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Resources

githubhttps://github.com/palantir/python-language-server ↗

packagehttps://pypi.org/project/python-language-server/ ↗