Add GDB link while trying to reduce the size of the pdf output

README.org

@@ -6038,17 +6038,11 @@ LSP server]] log output for debugging.
 (with-eval-after-load 'eglot
   (setq-default
    eglot-workspace-configuration
-   ;; Enable the `:pylsp_ruff' plugin and ensure to disable the
+   ;; Enable the `:pylsp_ruff' plugin and ensure to uninstall the
    ;; `:flake8', `:mccabe', and `:pycodestye' plugins.
    '(:pylsp (:plugins
              (:pylsp_ruff
               (:enabled t)
-              :flake8           ;; It is better to uninstall flake8
-              (:enabled :json-false)
-              :mccabe           ;; It is better to uninstall mccabe
-              (:enabled :json-false)
-              :pycodestyle      ;; It is better to uninstall pycodestyle
-              (:enabled :json-false)
               :jedi
               (:auto_import_modules ["numpy"])
               :jedi_completion
@@ -6063,19 +6057,13 @@ LSP server]] log output for debugging.
 ;; A .dir-locals.el file proposal in the root of any
 ;; Python project or Org-mode project tangling Python files
 ;; to launch eglot automatically.
+;; Ensure to enable the pylsp_ruff plugin.
+;; Ensure to uninstall the flake8, mccabe, and pycodestyle Python packages.
 ((nil  ;; nil, since Emacs-29.1 filters out irrelevant variable names.
   . ((eglot-workspace-configuration
-      ;; Enable the `:pylsp_ruff' plugin and ensure to disable the
-      ;; `:flake8', `:mccabe', and `:pycodestye' plugins.
       . (:pylsp (:plugins
                  (:pylsp_ruff
                   (:enabled t)
-                  :flake8           ;; It is better to uninstall flake8
-                  (:enabled :json-false)
-                  :mccabe           ;; It is better to uninstall mccabe
-                  (:enabled :json-false)
-                  :pycodestyle      ;; It is better to uninstall pycodestyle
-                  (:enabled :json-false)
                   :jedi
                   (:auto_import_modules ["numpy"])
                   :jedi_completion
@@ -6156,6 +6144,8 @@ Links of interest are:
 - [[https://stackoverflow.com/questions/51349074/in-python-3-7-does-the-opcode-event-from-sys-settrace-give-any-information-ab][How to use the opcode event (Python-3.7, GAV: why does it fail)?]]
 - [[https://pypi.org/project/pdbpp/][PDB++]] looks incompatible with Python>3.10: see [[https://github.com/pdbpp/pdbpp/issues/516][Python-3.11 breaks PDBPP]].
 - [[https://python-scientific-lecture-notes.developpez.com/tutoriel/notes-cours/python-debugging-code/#L3-1][Debugging Python with IPDB under IPython or with PDB in a terminal]].
+- [[https://docs.python.org/3/howto/gdb_helpers.html][Debugging C API extensions and CPython Internals with GDB]].  Making this work
+  with =pyenv= is an unresolved issue: see [[https://github.com/pyenv/pyenv/issues/1190][Install python-gdb.py]].
 
 #+caption[PDB example: =python -m pdb .emacs.d/buggy.py=]:
 #+caption: PDB example: =python -m pdb .emacs.d/buggy.py=.
@@ -6231,6 +6221,7 @@ setup and requires no configuration.
 :PROPERTIES:
 :CUSTOM_ID: sec:s-library
 :END:
+
 The library [[https://github.com/magnars/s.el][s.el]] positions itself as the long lost Emacs string manipulation
 library.  It is a requirement of the [[https://github.com/andras-simonyi/citeproc-el#readme][citeproc]] and [[https://github.com/bdarcus/citar#readme][citar]] packages in this Emacs
 setup and requires no configuration.