Python quit unexpectedly when terminating DAP UI

[Chamal1120]

I have an issue where macOS gives this error message "Python quit unexpectedly" on every time when I try to terminate, exit or reach the end of the program that I'm debugging. Apart from that the debugger works as expected.

OS - macOS Monterey 12.7.5 (intel macbook) Package manager - homebrew (python also installed with brew) neovim version - v0.10.0 (installed with brew) Plugin manager - lazy.nvim **Debugpy installed with mason tho. (actually I don't how it works. I just copy pasted some codes.)

below is my lua code related to debugging plugins located inside parent folder > lua > plugins

return {
  {
      "williamboman/mason.nvim",
      config = function()
          require("mason").setup()
      end,
  },
  {
      "jay-babu/mason-nvim-dap.nvim",
      config = function()
          require("mason-nvim-dap").setup({
              ensure_installed = { "python" },
              automatic_installation = false, 
              handlers = {
                  -- Custom handlers for specific adapters can be defined here
                  python = function(config)
                      config.adapters = {
                          type = "executable",
                          command = vim.fn.stdpath("data") .. "/mason/packages/debugpy/venv/bin/python",
                          args = { "-m", "debugpy.adapter" },
                      }
                      require('mason-nvim-dap').default_setup(config)
                  end,
              },
          })
      end,
  },
  {
      "mfussenegger/nvim-dap",
      dependencies = {
          "rcarriga/nvim-dap-ui",
          "nvim-neotest/nvim-nio",
          "mfussenegger/nvim-dap-python",
      },
      config = function()
          local dap = require("dap")
          local dapui = require("dapui")

          require("dapui").setup()
          require("dap-python").setup()

          dap.listeners.before.attach.dapui_config = function()
              dapui.open()
          end
          dap.listeners.before.launch.dapui_config = function()
              dapui.open()
          end
          dap.listeners.before.event_terminated.dapui_config = function()
              dapui.close()
          end
          dap.listeners.before.event_exited.dapui_config = function()
              dapui.close()
          end

          vim.keymap.set("n", "<Leader>dt", function() dap.toggle_breakpoint() end, {})
          vim.keymap.set("n", "<Leader>dc", function() dap.continue() end, {})
      end,
  },
}

p.s. - I'm a total beginner to neovim and lua and I might have made a lot of mistakes. I hope someone would help me out to correct my code.

[BLACKSWORD0]

If I use the python from homebrew, I get the same message in the same condition. If I use the python from anaconda, it will not show the message. My system is macOS 14.5(M1). I use a plugin called venv-selector to change environment.

[Chamal1120]

If I use the python from homebrew, I get the same message in the same condition. If I use the python from anaconda, it will not show the message. My system is macOS 14.5(M1). I use a plugin called venv-selector to change environment.

@BLACKSWORD0 can you tell me more about your conda setup?

1. Can I use it alongside my macos default python + hombrew python?
2. did you installed conda from brew? (if so what is the exact brew command?)
3. How do I set the path for the debugpy in my lua plugin with conda?

[BLACKSWORD0]

If I use the python from homebrew, I get the same message in the same condition. If I use the python from anaconda, it will not show the message. My system is macOS 14.5(M1). I use a plugin called venv-selector to change environment.

@BLACKSWORD0 can you tell me more about your conda setup?

1. Can I use it alongside my macos default python + hombrew python?
2. did you installed conda from brew? (if so what is the exact brew command?)
3. How do I set the path for the debugpy in my lua plugin with conda?

1. Yes, we can use different python virtual environment, so we can use anaconda alongside homebrew python. But I don't use macOS default python.
2. Yes, I install cask anaconda from homebrew.( brew install --cask anaconda).

3. I use a plugin called venv-selector to change environment. You can view its doc for more details. My config about them is following (My full config of python bases on astronvim, so I just show this part.):

   
   {
   "linux-cultist/venv-selector.nvim",
   dependencies = {
     "nvim-telescope/telescope.nvim",
     "mfussenegger/nvim-dap-python",
     "nvim-lua/plenary.nvim",
   },
   opts = {
     anaconda_base_path = "/opt/homebrew/anaconda3",
     anaconda_envs_path = "/opt/homebrew/anaconda3/envs",
     stay_on_this_version = true,
     dap_enabled = true,
     settings = {
       options = {
         notify_user_on_venv_activation = true,
       },
     },
   },
   cmd = { "VenvSelect" },
   },
   
   {
   "mfussenegger/nvim-dap-python",
   dependencies = "mfussenegger/nvim-dap",
   ft = "python",
   config = function(_, opts)
     require("dap-python").setup("python", opts)
   end,
   },

But I don't use debugpy in mason, I just install debugpy in ~/.virtualenvs.  "venv-selector" will find it automatically.  If you want, you can change the config of  "venv-selector" to find debugpy in mason.
The following is an example to show  "venv-selector":

https://github.com/mfussenegger/nvim-dap-python/assets/56479341/825ea27a-f090-44bf-b28c-57b56b7de48a

[Chamal1120]

@BLACKSWORD0 Thanks will look into this and give you an update.

[danischn]

I have the exact same issue, i use python 3.12.4.

This is my setup for nvim dap.

return {
    {
        "mfussenegger/nvim-dap",
        -- stylua: ignore
        keys = {
      { "<leader>s", function() require("dap").continue() end, desc = "Debug: Continue" },
      { "<up>", function() require("dap").step_over() end, desc = "Debug: Step over" },
      { "<down>", function() require("dap").step_into() end, desc = "Debug: Step into" },
      { "<right>", function() require("dap").step_out() end, desc = "Debug: Step out" },
      { "<leader>b", function() require("dap").toggle_breakpoint() end, desc = "Debug: Toggle breakpoint" },
    },
    },
    {
        "rcarriga/nvim-dap-ui",
        dependencies = { "mfussenegger/nvim-dap", "nvim-neotest/nvim-nio" },
        config = function()
            local dap = require("dap")
            local dapui = require("dapui")
            dapui.setup()
            dap.listeners.after.event_initialized["dapui_config"] = function()
                dapui.open()
            end
            dap.listeners.before.event_terminated["dapui_config"] = function()
                dapui.close()
            end
            dap.listeners.before.event_exited["dapui_config"] = function()
                dapui.close()
            end
        end,
    },
    {
        "mfussenegger/nvim-dap-python",
        ft = "python",
        dependencies = { "mfussenegger/nvim-dap", "rcarriga/nvim-dap-ui" },
        config = function()
            local path = "~/.local/share/nvim/mason/packages/debugpy/venv/bin/python"
            require("dap-python").setup(path)
        end,
    },
}

[danischn]

A temporary solution would be to run this in the terminal:

defaults write com.apple.CrashReporter DialogType none

To enable it again:

defaults write com.apple.CrashReporter DialogType prompt

You must restart for the changes to take effect.