nvim-dap-python VS debugpy

I think nvim-dap doesn't (always?) use neovim current working directory as root, which can cause issues like yours. I'd recommend using https://github.com/mfussenegger/nvim-dap-python along with a local .nvim.lua (:h 'exrc') with the following config:

You could use nvim-dap with nvim-dap-python.

I'd suggest starting with a Neovim distro that makes things work for you and as you get familiar you can transition to a more custom configuration as you see fit. If you want to do it by yourself then the most popular plugin for debugging in Neovim is nvim-dap and there is also an extension for Python to give you a more ready to go config instead of doing it yourself. You should read the docs of those 2 to see how you should customize accordingly your configuration.

I figured out a solution btw. I got this plugin and created a .vscode/launch.json file for my project and set the cwd in there

lmao. I'm asking this because I'm trying to do this. Just want to know whether this is a good idea. I have some basic setup using nvim-dap-python.

-- Debug adapter plug-in. Debug anything in Neovim { "mfussenegger/nvim-dap", config = function() vim.keymap.set("n", "d", ":DapContinue") vim.keymap.set("n", "dl", ":DapStepInto") vim.keymap.set("n", "dj", ":DapStepOver") vim.keymap.set("n", "dh", ":DapStepOut") vim.keymap.set("n", "dz", ":ZoomWinTabToggle") vim.keymap.set( "n", "dgt", -- dg as in debu[g] [t]race ":lua require('dap').set_log_level('TRACE')" ) vim.keymap.set( "n", "dge", -- dg as in debu[g] [e]dit function() vim.cmd(":edit " .. vim.fn.stdpath('cache') .. "/dap.log") end ) vim.keymap.set("n", "", ":DapStepOut") vim.keymap.set("n", "", ":DapStepOver") vim.keymap.set("n", "", ":DapStepInto") vim.keymap.set( "n", "d-", function() require("dap").restart() end ) vim.keymap.set( "n", "d_", function() require("dap").terminate() require("dapui").close() end ) end, lazy = true, }, -- A default "GUI" front-end for nvim-dap { "rcarriga/nvim-dap-ui", config = function() require("dapui").setup() -- Note: Added this dd duplicate of because somehow the -- mapping keeps getting reset each time I restart nvim-dap. Annoying but whatever. -- vim.keymap.set( "n", "dd", function() require("dapui").open() -- Requires nvim-dap-ui vim.cmd[[DapContinue]] -- Important: This will lazy-load nvim-dap end ) end, dependencies = { "mfussenegger/nvim-dap", "mfussenegger/nvim-dap-python", -- Optional adapter for Python }, }, -- TODO: Make sure that debugpy is installed. Otherwise, disable -- Reference: https://github.com/mfussenegger/nvim-dap-python#installation -- { "mfussenegger/nvim-dap-python", config = function() require("dap-python").setup("/path/to/python/here") -- XXX: Replace this with your preferred Python, if wanted -- An example configuration to launch any Python file, via Houdini -- table.insert( -- require("dap").configurations.python, -- { -- type = "python", -- request = "launch", -- name = "Launch Via hython", -- program = "${file}", -- python = "/opt/hfs19.5.569/bin/hython" -- -- ... more options, see https://github.com/microsoft/debugpy/wiki/Debug-configuration-settings -- } -- ) end, dependencies = { "mfussenegger/nvim-dap", "nvim-treesitter/nvim-treesitter", }, }, -- Remember nvim-dap breakpoints between sessions, ``:PBToggleBreakpoint`` { "Weissle/persistent-breakpoints.nvim", config = function() require("persistent-breakpoints").setup{ load_breakpoints_event = { "BufReadPost" } } vim.keymap.set("n", "db", ":PBToggleBreakpoint") end, }

Oh yes.. I think https://github.com/mfussenegger/nvim-dap-python is what you are looking for. The configuration might not be as simple as the VS code equivalent but seems to serve the same purpose?

But how do specify the same virtual env for Debugging with dap? nvim-dap-python is looking for the env variables VIRTUAL_ENV and CONDA_PREFIX. But that means i cannot open multiple python projects in the same nvim instance.

Yes, you can use nvim-dap-ui on top of nvim-dap or just nvim-dap-python (note that I haven‘t used the latter). Both options are able to parse .vscode/launch.json debug configs.

Have you installed and configured nvim-dap and nvim-dap-python ?

debugpy description from it's repository:

I'd love to see what it can do with https://github.com/microsoft/debugpy - and especially how it would handle vendored dependencies.

I read that nvim-dap-python uses debugpy which has all these configuration parameters of which one of them is `cwd` which represents the "absolute path to the working directory of the program being debugged".

Hey all, I'm not sure if this is normal or not but, when debugging with nvim-dap, nvim-dap-ui, and nvim-dap-python (which uses debugpy) over a remote session, dap runs exactly once and then closes the entire process. This even happens when I just call `require("dap").restart()`. It's pretty frustrating to deal with and is not something that I was used to when I used to debug with vimspector, which let me restart the debug remotely as many times as I wanted without killing the application that I was connected to. Is this happening for anyone else? How do I disable it? I didn't see anything in debugpy's configuration options. I'm rereading dap's vim :help but haven't found any mention of auto-close / terminate logic yet.

-- Debug adapter plug-in. Debug anything in Neovim { "mfussenegger/nvim-dap", config = function() vim.keymap.set("n", "d", ":DapContinue") vim.keymap.set("n", "dl", ":DapStepInto") vim.keymap.set("n", "dj", ":DapStepOver") vim.keymap.set("n", "dh", ":DapStepOut") vim.keymap.set("n", "dz", ":ZoomWinTabToggle") vim.keymap.set( "n", "dgt", -- dg as in debu[g] [t]race ":lua require('dap').set_log_level('TRACE')" ) vim.keymap.set( "n", "dge", -- dg as in debu[g] [e]dit function() vim.cmd(":edit " .. vim.fn.stdpath('cache') .. "/dap.log") end ) vim.keymap.set("n", "", ":DapStepOut") vim.keymap.set("n", "", ":DapStepOver") vim.keymap.set("n", "", ":DapStepInto") vim.keymap.set( "n", "d-", function() require("dap").restart() end ) vim.keymap.set( "n", "d_", function() require("dap").terminate() require("dapui").close() end ) end, lazy = true, }, -- A default "GUI" front-end for nvim-dap { "rcarriga/nvim-dap-ui", config = function() require("dapui").setup() -- Note: Added this dd duplicate of because somehow the -- mapping keeps getting reset each time I restart nvim-dap. Annoying but whatever. -- vim.keymap.set( "n", "dd", function() require("dapui").open() -- Requires nvim-dap-ui vim.cmd[[DapContinue]] -- Important: This will lazy-load nvim-dap end ) end, dependencies = { "mfussenegger/nvim-dap", "mfussenegger/nvim-dap-python", -- Optional adapter for Python }, }, -- TODO: Make sure that debugpy is installed. Otherwise, disable -- Reference: https://github.com/mfussenegger/nvim-dap-python#installation -- { "mfussenegger/nvim-dap-python", config = function() require("dap-python").setup("/path/to/python/here") -- XXX: Replace this with your preferred Python, if wanted -- An example configuration to launch any Python file, via Houdini -- table.insert( -- require("dap").configurations.python, -- { -- type = "python", -- request = "launch", -- name = "Launch Via hython", -- program = "${file}", -- python = "/opt/hfs19.5.569/bin/hython" -- -- ... more options, see https://github.com/microsoft/debugpy/wiki/Debug-configuration-settings -- } -- ) end, dependencies = { "mfussenegger/nvim-dap", "nvim-treesitter/nvim-treesitter", }, }, -- Remember nvim-dap breakpoints between sessions, ``:PBToggleBreakpoint`` { "Weissle/persistent-breakpoints.nvim", config = function() require("persistent-breakpoints").setup{ load_breakpoints_event = { "BufReadPost" } } vim.keymap.set("n", "db", ":PBToggleBreakpoint") end, }

After testing I have the same situation. I reported this issue on GitHub, you can follow up.

vim.fn.sign_define('DapBreakpoint', {text='🛑', texthl='', linehl='', numhl=''}) dap.configurations.python = { { -- The first three options are required by nvim-dap type = 'python'; -- the type here established the link to the adapter definition: `dap.adapters.python` request = 'launch'; name = "Launch file"; -- Options below are for debugpy, see https://github.com/microsoft/debugpy/wiki/Debug-configuration-settings for supported options program = "${file}"; -- This configuration will launch the current file if used. pythonPath = function() -- debugpy supports launching an application with a different interpreter then the one used to launch debugpy itself. -- The code below looks for a `venv` or `.venv` folder in the current directly and uses the python within. -- You could adapt this - to for example use the `VIRTUAL_ENV` environment variable. return os.getenv("VIRTUAL_ENV") .. "/bin/python" or '/usr/bin/env python' end; }, }

You should take a look at DAP (Debug Adapter Protocol). There exist a Python module implementing this protocol (debugpy) and you can probably find some client applications that can hook into it (like this neovim plugin).