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Description
I am running nvim-dap-python on nvim 0.9.5. OS is Windows and using debugpy as adapter.
when i try to run debugger on the uv's default main.py file i get the below error message in nvim. i have also included the dap logs and output from manually running debugpy in terminal below.
i think it is to do with a bad path "C:\Users<username>\uv-test2/.venv\Scripts\python.exe" (possibly double back slashes are required for windows? and there is one single forward slash) but maybe i am wrong. also shouldn't dap-python use pythonw.exe to avoid the terminal window pop up?
any help is appreciated.
{
"mfussenegger/nvim-dap",
version = "*",
dependencies = {
"rcarriga/nvim-dap-ui",
"nvim-neotest/nvim-nio",
"folke/snacks.nvim",
"theHamsta/nvim-dap-virtual-text",
"mfussenegger/nvim-dap-python",
"leoluz/nvim-dap-go",
},
config = function()
local dap = require("dap")
local dapui = require("dapui")
dap.set_log_level("DEBUG")
require("dapui").setup()
require("nvim-dap-virtual-text").setup()
require("dap-go").setup()
require("dap-python").setup("uv")
end,
},
nvim error message
Error executing vim.schedule lua callback: Vim:E903: Process failed to start: function not implemented: "C:\Users\<username>\uv-test2/.venv\Scripts\python.exe"
stack traceback:
[C]: in function 'jobstart'
...20881/nvim/nvim-data/lazy/nvim-dap/lua/dap/session.lua:300: in function 'handler'
...20881/nvim/nvim-data/lazy/nvim-dap/lua/dap/session.lua:1115: in function 'handle_body'
...20881/nvim/nvim-data/lazy/nvim-dap/lua/dap/session.lua:1619: in function 'cb'
vim/_editor.lua:263: in function <vim/_editor.lua:262
Debug adapter didn't respond. Either the adapter is slow (then wait and ignore this) or there is a problem with your adapter or `python` configuration. Check the logs for errors (:help dap.set_log_level)
Press ENTER or type command to continue
logs
[DEBUG] 2025-03-29 22:41:30 dap/session.lua:1533 "Spawning debug adapter" {
args = { "run", "--with", "debugpy", "python", "-m", "debugpy.adapter" },
command = "uv",
enrich_config = <function 1>,
options = {
source_filetype = "python"
},
type = "executable"
}
[DEBUG] 2025-03-29 22:41:30 dap/session.lua:1872 "request" {
arguments = {
adapterID = "nvim-dap",
clientID = "neovim",
clientName = "neovim",
columnsStartAt1 = true,
linesStartAt1 = true,
locale = "en_US",
pathFormat = "path",
supportsProgressReporting = true,
supportsRunInTerminalRequest = true,
supportsStartDebuggingRequest = true,
supportsVariableType = true
},
command = "initialize",
seq = 1,
type = "request"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
category = "telemetry",
data = {
packageVersion = "1.8.13"
},
output = "ptvsd"
},
event = "output",
seq = 1,
type = "event"
}
[INFO] 2025-03-29 22:41:31 dap/session.lua:827 "Telemetry" "ptvsd"
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
category = "telemetry",
data = {
packageVersion = "1.8.13"
},
output = "debugpy"
},
event = "output",
seq = 2,
type = "event"
}
[INFO] 2025-03-29 22:41:31 dap/session.lua:827 "Telemetry" "debugpy"
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
exceptionBreakpointFilters = { {
default = false,
description = "Break whenever any exception is raised.",
filter = "raised",
label = "Raised Exceptions"
}, {
default = true,
description = "Break when the process is exiting due to unhandled exception.",
filter = "uncaught",
label = "Uncaught Exceptions"
}, {
default = false,
description = "Break when exception escapes into library code.",
filter = "userUnhandled",
label = "User Uncaught Exceptions"
} },
supportsClipboardContext = true,
supportsCompletionsRequest = true,
supportsConditionalBreakpoints = true,
supportsConfigurationDoneRequest = true,
supportsDebuggerProperties = true,
supportsDelayedStackTraceLoading = true,
supportsEvaluateForHovers = true,
supportsExceptionInfoRequest = true,
supportsExceptionOptions = true,
supportsFunctionBreakpoints = true,
supportsGotoTargetsRequest = true,
supportsHitConditionalBreakpoints = true,
supportsLogPoints = true,
supportsModulesRequest = true,
supportsSetExpression = true,
supportsSetVariable = true,
supportsStepInTargetsRequest = true,
supportsTerminateDebuggee = true,
supportsTerminateRequest = true,
supportsValueFormattingOptions = true
},
command = "initialize",
request_seq = 1,
seq = 3,
success = true,
type = "response"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
sockets = { {
host = "127.0.0.1",
internal = false,
port = 58163
} }
},
event = "debugpySockets",
seq = 4,
type = "event"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1872 "request" {
arguments = {
console = "integratedTerminal",
name = "file",
program = "C:\\Users\\W520881\\uv-test2\\main.py",
pythonPath = "C:\\Users\\W520881\\uv-test2/.venv\\Scripts\\python.exe",
request = "launch",
type = "python"
},
command = "launch",
seq = 2,
type = "request"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
sockets = { {
host = "127.0.0.1",
internal = false,
port = 58163
}, {
host = "127.0.0.1",
internal = true,
port = 58164
} }
},
event = "debugpySockets",
seq = 5,
type = "event"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
body = {
sockets = { {
host = "127.0.0.1",
internal = false,
port = 58163
}, {
host = "127.0.0.1",
internal = true,
port = 58165
}, {
host = "127.0.0.1",
internal = true,
port = 58164
} }
},
event = "debugpySockets",
seq = 6,
type = "event"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:1068 1 {
arguments = {
args = { "C:\\Users\\W520881\\uv-test2/.venv\\Scripts\\python.exe", "C:\\Users\\W520881\\uv-test2\\.venv\\Lib\\site-packages\\debugpy\\launcher", "58165", "--", "C:\\Users\\W520881\\uv-test2\\main.py" },
cwd = "C:\\Users\\W520881\\uv-test2",
env = vim.empty_dict(),
kind = "integrated",
title = "Python Debug Console"
},
command = "runInTerminal",
seq = 7,
type = "request"
}
[DEBUG] 2025-03-29 22:41:31 dap/session.lua:230 "run_in_terminal" {
args = { "C:\\Users\\W520881\\uv-test2/.venv\\Scripts\\python.exe", "C:\\Users\\W520881\\uv-test2\\.venv\\Lib\\site-packages\\debugpy\\launcher", "58165", "--", "C:\\Users\\W520881\\uv-test2\\main.py" },
cwd = "C:\\Users\\W520881\\uv-test2",
env = vim.empty_dict(),
kind = "integrated",
title = "Python Debug Console"
}
[DEBUG] 2025-03-29 22:43:26 dap/session.lua:1068 1 {
command = "launch",
message = "Timed out waiting for launcher to connect",
request_seq = 2,
seq = 8,
success = false,
type = "response"
}
[DEBUG] 2025-03-29 22:43:26 dap/session.lua:1068 1 {
body = {
sockets = { {
host = "127.0.0.1",
internal = false,
port = 58163
}, {
host = "127.0.0.1",
internal = true,
port = 58164
} }
},
event = "debugpySockets",
seq = 9,
type = "event"
}
[INFO] 2025-03-29 22:56:04 dap/session.lua:1593 "Process exit" "uv" 1 19320
output when running uv run --with debugpy python -m debugpy.adapter
in terminal
$ uv run --with debugpy python -m debugpy.adapter
Content-Length: 138
{"seq": 1, "type": "event", "event": "output", "body": {"category": "telemetry", "output": "ptvsd", "data": {"packageVersion": "1.8.13"}}}Content-Length: 140
{"seq": 2, "type": "event", "event": "output", "body": {"category": "telemetry", "output": "debugpy", "data": {"packageVersion": "1.8.13"}}}Content-Length: 134
{"seq": 3, "type": "event", "event": "debugpySockets", "body": {"sockets": [{"host": "127.0.0.1", "port": 58741, "internal": false}]}}
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