Basic set up

[excalamus]

What is the basic setup?

I have done the following:

1. Install the latest dap-mode (cbe6549) via straight:

(use-package dap-mode
  :config
  (require 'dap-python)
  (setq dap-python-debugger 'debugpy)
  )

2. Install debugpy:

(venv) user@debian:~/projects/dap$ python -V && pip list
Python 3.7.3
Package       Version
------------- -------
debugpy       1.1.0  
pip           18.1   
pkg-resources 0.0.0  
setuptools    40.8.0 

3. Create a test script with a breakpoint():

# debugme.py
import sys

class Hello:

    def say_something(self, thing):
       breakpoint()
       print("I say,", thing)


if __name__ == '__main__':
   hi = Hello()
   hi.say_something("what's up?")

4. Activate virtual environment within Emacs via pyvenv-activate
5. Call dap-auto-configure-mode within the debugme.py buffer
6. Call M-x dap-debug <RET> Python :: Run file (buffer)

This brings up the beautiful debug screen:

In the minibuffer is a message about "No message handler for module". Checking C-h e, I see:

No message handler for process
No message handler for module [2 times]

• Is this setup appropriate?
• Are the error messages expected?

Debugging appears to function as expected.

These may seem like obvious questions, however as a newbie to DAP, I found ways to struggle before arriving at the above. I understand debugpy support is quite new and so the documentation doesn't yet reflect it. If things are stable enough, I would be happy to contribute to the docs.

[nbfalcon]

Your setup is appropriate. I do agree that we are largely lacking documentation, which we will need to do eventually. As for the messages: they indicate that we don't support certain events yet and you can feel free to ignore them (see #398 for details).

[nbfalcon]

debugpy support also isn't that new, so I hope that all bugs were ironed out by now.

[excalamus]

Thank you for taking the time to review and confirm.

[simurgh9]

There should be a better way to handle No message handler for ..., I did not notice them before I wrote some configs of my own but did after and thought I might have done something to cause them. Maybe suppress them by default? Maybe add "No message handler for ... (not implemented yet)".