lsp not working with newly created python files

[alexsanduk]

Lsp is not working when opening a new python file with neovim (>>> nvim foo.py). Basically even LspInfo is not available. Putting lazy=False here did help to get the LspInfo function loaded, but still pyright not attached: When saved and reopened it works perfecly fine.

Here is my lazy-lock.json:

{
  "Comment.nvim": { "branch": "master", "commit": "eab2c83a0207369900e92783f56990808082eac2" },
  "DAPInstall.nvim": { "branch": "main", "commit": "8798b4c36d33723e7bba6ed6e2c202f84bb300de" },
  "LuaSnip": { "branch": "master", "commit": "9bff06b570df29434a88f9c6a9cea3b21ca17208" },
  "alpha-nvim": { "branch": "main", "commit": "dafa11a6218c2296df044e00f88d9187222ba6b0" },
  "bufdelete.nvim": { "branch": "master", "commit": "8933abc09df6c381d47dc271b1ee5d266541448e" },
  "bufferline.nvim": { "branch": "main", "commit": "c7492a76ce8218e3335f027af44930576b561013" },
  "cmp-buffer": { "branch": "main", "commit": "3022dbc9166796b644a841a02de8dd1cc1d311fa" },
  "cmp-cmdline": { "branch": "main", "commit": "23c51b2a3c00f6abc4e922dbd7c3b9aca6992063" },
  "cmp-nvim-lsp": { "branch": "main", "commit": "0e6b2ed705ddcff9738ec4ea838141654f12eeef" },
  "cmp-nvim-lua": { "branch": "main", "commit": "f3491638d123cfd2c8048aefaf66d246ff250ca6" },
  "cmp-path": { "branch": "main", "commit": "91ff86cd9c29299a64f968ebb45846c485725f23" },
  "cmp_luasnip": { "branch": "master", "commit": "18095520391186d634a0045dacaa346291096566" },
  "friendly-snippets": { "branch": "main", "commit": "a6f7a1609addb4e57daa6bedc300f77f8d225ab7" },
  "gitsigns.nvim": { "branch": "main", "commit": "ec4742a7eebf68bec663041d359b95637242b5c3" },
  "indent-blankline.nvim": { "branch": "master", "commit": "8299fe7703dfff4b1752aeed271c3b95281a952d" },
  "lazy.nvim": { "branch": "main", "commit": "f8611632d0f9c6818e8eb54f9bcd1dad122b5a7f" },
  "lualine.nvim": { "branch": "master", "commit": "0050b308552e45f7128f399886c86afefc3eb988" },
  "mason-lspconfig.nvim": { "branch": "main", "commit": "93e58e100f37ef4fb0f897deeed20599dae9d128" },
  "mason.nvim": { "branch": "main", "commit": "4546dec8b56bc56bc1d81e717e4a935bc7cd6477" },
  "null-ls.nvim": { "branch": "main", "commit": "60b4a7167c79c7d04d1ff48b55f2235bf58158a7" },
  "nvim-autopairs": { "branch": "master", "commit": "0e065d423f9cf649e1d92443c939a4b5073b6768" },
  "nvim-cmp": { "branch": "main", "commit": "cfafe0a1ca8933f7b7968a287d39904156f2c57d" },
  "nvim-dap": { "branch": "master", "commit": "6b12294a57001d994022df8acbe2ef7327d30587" },
  "nvim-dap-ui": { "branch": "master", "commit": "1cd4764221c91686dcf4d6b62d7a7b2d112e0b13" },
  "nvim-lspconfig": { "branch": "master", "commit": "649137cbc53a044bffde36294ce3160cb18f32c7" },
  "nvim-tree.lua": { "branch": "master", "commit": "f5d970d4506f385b29534252d8c15a782fa53034" },
  "nvim-treesitter": { "branch": "master", "commit": "226c1475a46a2ef6d840af9caa0117a439465500" },
  "nvim-ts-context-commentstring": { "branch": "main", "commit": "729d83ecb990dc2b30272833c213cc6d49ed5214" },
  "nvim-web-devicons": { "branch": "master", "commit": "0568104bf8d0c3ab16395433fcc5c1638efc25d4" },
  "plenary.nvim": { "branch": "master", "commit": "9a0d3bf7b832818c042aaf30f692b081ddd58bd9" },
  "project.nvim": { "branch": "main", "commit": "8c6bad7d22eef1b71144b401c9f74ed01526a4fb" },
  "telescope.nvim": { "branch": "master", "commit": "40c31fdde93bcd85aeb3447bb3e2a3208395a868" },
  "toggleterm.nvim": { "branch": "main", "commit": "19aad0f41f47affbba1274f05e3c067e6d718e1e" },
  "tokyonight-night": { "branch": "main", "commit": "e52c41314e83232840d6970e6b072f9fba242eb9" },
  "vim-illuminate": { "branch": "master", "commit": "d6ca7f77eeaf61b3e6ce9f0e5a978d606df44298" },
  "which-key.nvim": { "branch": "main", "commit": "5224c261825263f46f6771f1b644cae33cd06995" }
}

Trying to debug I took the minimalistic init.lua from here:

require('packer').startup(function(use)
    -- Packer can manage itself
    use 'wbthomason/packer.nvim'
    use {
        'nvim-treesitter/nvim-treesitter',
        run = ':TSUpdate'
    }
    use 'neovim/nvim-lspconfig'
end)

require'nvim-treesitter.configs'.setup {
    -- A list of parser names, or "all" (the five listed parsers should always be installed)
    ensure_installed = { "python", "cpp", "c", "lua", "vim", "vimdoc", "query" },

    -- Install parsers synchronously (only applied to `ensure_installed`)
    sync_install = false,

    -- Automatically install missing parsers when entering buffer
    -- Recommendation: set to false if you don't have `tree-sitter` CLI installed locally
    auto_install = true,

    -- List of parsers to ignore installing (for "all")
    ignore_install = { "javascript" },

    ---- If you need to change the installation directory of the parsers (see -> Advanced Setup)
    -- parser_install_dir = "/some/path/to/store/parsers", -- Remember to run vim.opt.runtimepath:append("/some/path/to/store/parsers")!

    highlight = {
        enable = true,

        -- NOTE: these are the names of the parsers and not the filetype. (for example if you want to
        -- disable highlighting for the `tex` filetype, you need to include `latex` in this list as this is
        -- the name of the parser)
        -- list of language that will be disabled
        disable = { "c", "rust" },
        -- Or use a function for more flexibility, e.g. to disable slow treesitter highlight for large files
        disable = function(lang, buf)
            local max_filesize = 100 * 1024 -- 100 KB
            local ok, stats = pcall(vim.loop.fs_stat, vim.api.nvim_buf_get_name(buf))
            if ok and stats and stats.size > max_filesize then
                return true
            end
        end,

        -- Setting this to true will run `:h syntax` and tree-sitter at the same time.
        -- Set this to `true` if you depend on 'syntax' being enabled (like for indentation).
        -- Using this option may slow down your editor, and you may see some duplicate highlights.
        -- Instead of true it can also be a list of languages
        additional_vim_regex_highlighting = false,
    },
}

vim.lsp.set_log_level 'trace'
require('vim.lsp.log').set_format_func(vim.inspect)
local nvim_lsp = require 'lspconfig'
local on_attach = function(_, bufnr)
    local function buf_set_option(...)
        vim.api.nvim_buf_set_option(bufnr, ...)
    end

    buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

    -- Mappings.
    local opts = { buffer = bufnr, noremap = true, silent = true }
    vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
    vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
    vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, opts)
    vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, opts)
    vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, opts)
    vim.keymap.set('n', '<space>wl', function()
        print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
    end, opts)
    vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, opts)
    vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, opts)
    vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
    vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
    vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
    vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
    vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)
end

-- Add the server that troubles you here
local name = 'pyright'
local cmd = { 'pyright-langserver', '--stdio' } -- needed for elixirls, lua_ls, omnisharp
if not name then
    print 'You have not defined a server name, please edit minimal_init.lua'
end
if not nvim_lsp[name].document_config.default_config.cmd and not cmd then
    print [[You have not defined a server default cmd for a server
    that requires it please edit minimal_init.lua]]
end

nvim_lsp[name].setup {
    cmd = cmd,
    on_attach = on_attach,
}

print [[You can find your log at $HOME/.cache/nvim/lsp.log. Please paste in a github issue under a details tag as described in the issue template.]]

And it does work fine.

[alexsanduk]

Apparently more generic issue related to neovim and virtualenvs. Discussed here.