multilspy

library0.0.15pypypi✓ verified 79d ago

multilspy is a language-agnostic LSP (Language Server Protocol) client library for Python, providing a high-level interface to interact with language servers. Current version is 0.1.0 (pre-release), with a stable v0.0.15. It supports Python, Rust, Java, Go, JavaScript, Ruby, C#, Dart, PHP, and Elixir. Development is active, with regular releases.

http-networking devops

pip install multilspy

github ↗package ↗

INSTALL

IMPORT

SIG · MULTILSPY

multilspy

http-networkingpythonv0.0.15

Install

3.7s avg

Import

—

Disk

37MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.0.15 · 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 0.000s · 38.4MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 3.7s · import 0.000s · 39MB

37MB installed

● package 37MB

Code

Verified usage

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

LanguageServer

✓ from multilspy import LanguageServer

✗ from multilspy import Multilspy

SyncLanguageServer

✓ from multilspy import SyncLanguageServer

Types

✓ from multilspy import Types

Basic usage: start a language server, open a file, request completions, then stop.

import os from multilspy import Multilspy # Initialize multilspy with a language server (Python in this case) lsp = Multilspy(os.environ.get('PYTHON_LSP', 'pylsp')) # Start the language server lsp.start() # Open a Python file with open('example.py', 'w') as f: f.write('import os\n\nprint(os.getcwd())') lsp.open_document('example.py') # Get completions completions = lsp.request_completions('example.py', line=1, character=0) print(completions) lsp.close_document('example.py') lsp.stop()

Debug

Known issues

gotchaOn Windows, multilspy may fail with 'No module named pwd' if the system does not have the pwd module. This was fixed in v0.0.15, but older versions are affected.

fix

Upgrade to multilspy>=0.0.15

affects: <0.0.15

deprecatedThe `request_references` and `request_document_symbols` methods may raise assertion errors without messages in older versions. Debugging is difficult.

fix

Use multilspy>=0.0.15 or catch AssertionError explicitly.

affects: <0.0.15

breakingIn v0.1.0 (pre-release), the API may have changed significantly. The async `LanguageServer` class may replace `Multilspy`. Stick to stable v0.0.15 for now.

fix

Pin to multilspy>=0.0.15,<0.1.0 or test thoroughly with v0.1.0.

affects: 0.1.0

Upgrade

Version history

0.0.15latest on PyPI · released Apr 3, 2025

Audit

Dependencies

psutilrequiredProcess termination handling on all platforms

Agent activity

12 hits · last 30 days

node

Resources

githubhttps://github.com/microsoft/multilspy ↗

packagehttps://pypi.org/project/multilspy/ ↗