sileht / dmypy-ls

mypy language server (using mypy server instead of command line)

dmypy-ls: mypy language server

It is a PoC language server using dmypy internal API, not intended to be daily used.

It supports diagnostics only.

The first run is very slow as dmypy has to build a cache, and dmypy rebuilds the cache for no obvious reason when multiple files are opened.

These days mypy cli is still faster because of the efficient disk cache it has now.

Install

$ pipx install dmypy-ls

vim-lspconfig

lua << EOF
require("lspconfig.configs")["dmypyls"] = {
    default_config = {
        cmd = { 'dmypy-ls' },
        filetypes = { 'python' },
        root_dir = lspconfig.util.root_pattern('pyproject.toml', 'setup.py', 'setup.cfg', 'requirements.txt', 'Pipfile'),
        single_file_support = true,
    },
}
require("lspconfip").dmypyls.setup({})
EOF

dmypy-ls's Issues

cannot run dmypy-ls after pip-installing to virtualenv

Expected Behavior

dmypy-ls runs

Actual Behavior

dmypy-ls exits with the following error

Traceback (most recent call last):
  File "/home/user/dev/venvs/dmypy_ls/bin/dmypy-ls", line 5, in <module>
    from dmypy_ls import main
  File "/home/user/dev/venvs/dmypy_ls/lib/python3.11/site-packages/dmypy_ls/__init__.py", line 36, in <module>
    from pygls.lsp import methods
ImportError: cannot import name 'methods' from 'pygls.lsp' (/home/user/dev/venvs/dmypy_ls/lib/python3.11/site-packages/pygls/lsp/__init__.py)

Steps to Reproduce the Problem

1. pypy3 -m venv dmypy_ls
2. source dmypy_ls/bin/activate
3. pip install --upgrade pip dmypy-ls
4. dmypy-ls

Specifications

• Pull Request URL:
• Mergify Config URL: