An error when debugging Python code using `debugpy`

[abougouffa]

Each step, I have (void-function \(setf\ gdb-table-right-align\)) error. When I enable debug on error, I get this trace:

Debugger entered--Lisp error: (void-function \(setf\ gdb-table-right-align\))
  \(setf\ gdb-table-right-align\)(t #s(gdb-table :column-sizes (1 5 24 0) :rows (("A" "Type" "Where/On" nil) (#("n" 0 1 (font-lock-face font-lock-doc-face)) "Excep" "Raised Exceptions" nil) (#("y" 0 1 (font-lock-face font-lock-warning-face)) "Excep" "Uncaught Exceptions" nil) (#("n" 0 1 (font-lock-face font-lock-doc-face)) "Excep" "User Uncaught Exceptions" nil)) :row-properties (nil (dape--info-exception (:filter "raised" :label "Raised Exceptions" :default :json-false :description "Break whenever any exception is raised." :enabled nil) mouse-face highlight keymap (keymap (follow-link . mouse-face) (mouse-2 . dape-info-exceptions-toggle) (13 . dape-info-exceptions-toggle) (57 . digit-argument) (56 . digit-argument) (55 . digit-argument) (54 . digit-argument) (53 . digit-argument) (52 . digit-argument) (51 . digit-argument) (50 . digit-argument) (49 . digit-argument) (48 . digit-argument) (45 . negative-argument) (remap keymap (self-insert-command . undefined))) help-echo "mouse-2, RET: toggle exception") (dape--info-exception (:filter "uncaught" :label "Uncaught Exceptions" :default t :description "Break when the process is exiting due to unhandled exception." :enabled t) mouse-face highlight keymap (keymap (follow-link . mouse-face) (mouse-2 . dape-info-exceptions-toggle) (13 . dape-info-exceptions-toggle) (57 . digit-argument) (56 . digit-argument) (55 . digit-argument) (54 . digit-argument) (53 . digit-argument) (52 . digit-argument) (51 . digit-argument) (50 . digit-argument) (49 . digit-argument) (48 . digit-argument) (45 . negative-argument) (remap keymap (self-insert-command . undefined))) help-echo "mouse-2, RET: toggle exception") (dape--info-exception (:filter "userUnhandled" :label "User Uncaught Exceptions" :default :json-false :description "Break when exception escapes into library code." :enabled nil) mouse-face highlight keymap (keymap (follow-link . mouse-face) (mouse-2 . dape-info-exceptions-toggle) (13 . dape-info-exceptions-toggle) (57 . digit-argument) (56 . digit-argument) (55 . digit-argument) (54 . digit-argument) (53 . digit-argument) (52 . digit-argument) (51 . digit-argument) (50 . digit-argument) (49 . digit-argument) (48 . digit-argument) (45 . negative-argument) (remap keymap (self-insert-command . undefined))) help-echo "mouse-2, RET: toggle exception")) :right-align nil))
  #f(compiled-function () #<bytecode -0x191fd00f3d0c0d25>)()
  dape--info-call-update-with(#f(compiled-function () #<bytecode -0x191fd00f3d0c0d25>))
  #f(compiled-function (&optional ignore-auto noconfirm preserve-modes) "Revert buffer function for MAJOR-MODE `dape-info-breakpoints-mode'." #<bytecode 0x1e6e2357ffe879a9>)(nil nil)
  apply(#f(compiled-function (&optional ignore-auto noconfirm preserve-modes) "Revert buffer function for MAJOR-MODE `dape-info-breakpoints-mode'." #<bytecode 0x1e6e2357ffe879a9>) (nil nil))
  #f(compiled-function (&rest args) #<bytecode -0x85895202cf02382>)()
  #f(compiled-function () #<bytecode 0x10f74238ef7556f>)()
  apply(#f(compiled-function () #<bytecode 0x10f74238ef7556f>) nil)
  timer-event-handler([t 26286 20352 122755 nil #f(compiled-function () #<bytecode 0x10f74238ef7556f>) nil nil 634000 nil])

I noticed when I get this error, the "Locals" and "Globals" sections of the dape-info window aren't visible.

UPDATE:

It seems that this issue happens when dape-buffer-window-arrangement is set to gud.

[svaante]

Would be great if you could share the contents of the *Messages* buffer after M-x emacs-version.

[abougouffa]

Oops, sorry, I didn't see your comment until now.

Here is the output of M-x emacs-version

GNU Emacs 30.0.60 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.5, cairo version 1.16.0) of 2024-07-23

[svaante]

Im sorry for dropping the ball on this one, I still don't know what causes this issue.

Did you manage work around the issue in some way?

[abougouffa]

I didn't. At the time, I managed to use dape after setting dape-buffer-window-arrangement to left instead of gud. I don't know if it was the real cause, but it worked.

I didn't reproduce the issue since. I think we can close this issue, if I face the issue again I will try to investigate it.

Thanks for the amazing package!