Visual Studio Code python debugging timeout

Question

I'm following Microsoft's guide Getting Started with Python in VS Code, but can only run in debug mode once -- the following run will always hit a time out issue.

This is the hello.py

msg = "Hello World"
print(msg)

This is the launch.json, which basically only added "stopOnEntry": true so will stop at the first line of code during debugging:

{
 // Use IntelliSense to learn about possible attributes.
 // Hover to view descriptions of existing attributes.
 // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
 "version": "0.2.0",
 "configurations": [ 
 {
 "name": "Python: Current File",
 "type": "python",
 "request": "launch",
 "program": "${file}",
 "console": "integratedTerminal",
 "stopOnEntry": true
 }
 ]
}

So my first round of debugging works, the terminal inside Visual Studio Code shows:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Playground\vscode\py\ms>c:/Playground/vscode/py/ms/env/Scripts/activate.bat
(env) C:\Playground\vscode\py\ms>cd c:\Playground\vscode\py\ms && cmd /C "set "PYTHONIOENCODING=UTF-8" && set "PYTHONUNBUFFERED=1" && c:\Playground\vscode\py\ms\env\Scripts\python.exe c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\ptvsd_launcher.py --default --client --host localhost --port 58792 c:\Playground\vscode\py\ms\hello.py "
Hello World

However, if I click debug button again, it jammed, showing an error dialogue:

[Window Title]
Visual Studio Code
[Content]
timeout
[Open launch.json] [Cancel]

, and Terminal inside vscode shows:

(env) C:\Playground\vscode\py\ms>cd c:\Playground\vscode\py\ms && cmd /C "set "PYTHONIOENCODING=UTF-8" && set "PYTHONUNBUFFERED=1" && c:\Playground\vscode\py\ms\env\Scripts\python.exe c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\ptvsd_launcher.py --default --client --host localhost --port 58798 c:\Playground\vscode\py\ms\hello.py "
E00001.107: Exception escaped from start_client
 Traceback (most recent call last):
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\log.py", line 110, in g
 return f(*args, **kwargs)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\pydevd_hooks.py", line 74, in start_client
 sock, start_session = daemon.start_client((host, port))
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\daemon.py", line 217, in start_client
 connect(client, addr)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\socket.py", line 197, in connect
 sock.connect(addr)
 ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it
Traceback (most recent call last):
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\ptvsd_launcher.py", line 43, in <module>
 main(ptvsdArgs)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\__main__.py", line 434, in main
 run()
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\__main__.py", line 296, in run_file
 setup_connection()
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\__main__.py", line 287, in setup_connection
 daemon = ptvsd._remote.attach(addr)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\_remote.py", line 91, in attach
 patch_multiprocessing=ptvsd.options.multiprocess)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\_vendored\pydevd\pydevd.py", line 2017, in settrace
 wait_for_ready_to_run,
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\_vendored\pydevd\pydevd.py", line 2068, in _locked_settrace
 debugger.connect(host, port) # Note: connect can raise error.
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\_vendored\pydevd\pydevd.py", line 914, in connect
 s = start_client(host, port)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\pydevd_hooks.py", line 132, in <lambda>
 _start_client = (lambda h, p: start_client(daemon, h, p))
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\log.py", line 110, in g
 return f(*args, **kwargs)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\pydevd_hooks.py", line 74, in start_client
 sock, start_session = daemon.start_client((host, port))
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\daemon.py", line 217, in start_client
 connect(client, addr)
 File "c:\Users\drlren\.vscode\extensions\ms-python.python-2019年5月18日875\pythonFiles\lib\python\ptvsd\socket.py", line 197, in connect
 sock.connect(addr)
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

What happened? and how can I sort it out?

Answer 1

I resolved this issue changing the terminal from "bash" to "Command prompt" (cmd).

• Jdeep: And how to do that?
• tavito: When you open a terminal console, at the top right you will see a drop-down list with the different terminal options you have available.

Answer 2

I had the same timeout problem on VS Code with a freshly installed Python Extension by Microsoft. What I did was installing the plugin and then immediately try to debug a file, which ended in a ConnectionRefusedError.

To resolve, I simply restarted VS Code.

• daniboy000: Please define the python plugin used since there are several options available.