pytest Language Server for VS Code

A blazingly fast Language Server Protocol implementation for pytest fixtures, written in Rust.

Features

• Go to Definition: Jump to fixture definitions from usage
• Find References: Find all usages of a fixture
• Hover Documentation: View fixture signatures and docstrings
• Diagnostics: Warnings for undeclared fixtures used in function bodies
• Code Actions: Quick fixes to add missing fixture parameters
• Fixture Priority: Correctly handles pytest's fixture shadowing rules

Configuration

Custom Executable Path

By default, the extension uses the bundled pytest-language-server binary. You can configure a custom path:

{
  "pytestLanguageServer.executable": "/path/to/pytest-language-server"
}

To use the system version from PATH:

{
  "pytestLanguageServer.executable": "pytest-language-server"
}

Debug Logging

Enable LSP communication tracing:

{
  "pytestLanguageServer.trace.server": "verbose"
}

Requirements

None! The extension includes pre-built binaries for:

• macOS (Intel and Apple Silicon)
• Linux (x86_64 and ARM64)
• Windows (x86_64)

Alternatively, you can install pytest-language-server from PyPI:

pip install pytest-language-server

Usage

The language server automatically activates for Python files in your workspace. No additional configuration is needed.

Issues

Report issues at: https://github.com/bellini666/pytest-language-server/issues

License

MIT