restructured python mode, integrated pet.

config.org

@@ -1701,6 +1701,9 @@ at least pandas couldnt be resolved in pyright
 
 #+end_src
 ** LSP-Mode
+see https://github.com/emacs-lsp/lsp-pyright
+for pything pip install basedpyright
+see also https://github.com/DetachHead/basedpyright
 #+begin_src emacs-lisp
 (defun corfu-lsp-setup ()
   (setf (alist-get 'styles (alist-get 'lsp-capf completion-category-defaults))
@@ -1725,9 +1728,11 @@ at least pandas couldnt be resolved in pyright
   :after (python lsp-mode)
   :custom
   (lsp-pyright-multi-root nil)
+  (lsp-pyright-langserver-command "basedpyright")
   :hook
-  (python-mode-hook . (lambda ()
-                        (require 'lsp-pyright) (lsp))))
+  (python-mode . (lambda ()
+                        (require 'lsp-pyright)
+                        (lsp))))
 #+end_src
 ** flymake
 python in venv: pip install pyflake (or ruff?)
@@ -1948,13 +1953,10 @@ npm install -g prettier
 Preparations:
 - create env:
   m-x shell
-  python3 -m venv ./.env
+  python3 -m venv ./.venv
 - Install language server in *each* projects venv
   source ./.env/bin/activate
-  pip install pyright
-- in project root:
-  touch .project.el
-  echo "((nil . (pyvenv-activate . "/path/to/project/.env")))" >> .dir-locals.el
+  pip install basedpyright
 
  für andere language servers
  https://github.com/emacs-lsp/lsp-mode#install-language-server
@@ -1983,7 +1985,7 @@ Preparations:
   :hook
   (python-mode . pyvenv-mode)
   :custom
-  (pyvenv-default-virtual-env-name ".env")
+  (pyvenv-default-virtual-env-name ".venv")
   (pyvenv-mode-line-indicator '(pyvenv-virtual-env-name ("[venv:" pyvenv-virtual-env-name "]"))))
 
 
@@ -1996,10 +1998,31 @@ Preparations:
 
 
  TODO  python mode hook:
- - activate venv
  - activate eglot with proper ls
  - activate tree-sitter?
  - have some fallback if activations fail
+
+** python pet
+see https://github.com/wyuenho/emacs-pet
+It uses pyvenv to activate the venv. Somehow it doesn't do it on its own. Maybe a misunderstanding on my side.
+
+#+begin_src emacs-lisp
+(use-package pet
+  :ensure t
+  :config
+  (add-hook 'python-base-mode-hook 'pet-mode -10)
+  (add-hook 'pet-mode-hook
+            (lambda ()
+              (when python-shell-virtualenv-root
+                (pyvenv-activate python-shell-virtualenv-root))))
+  (add-hook 'python-mode-hook
+            (lambda ()
+              (setq-local python-shell-interpreter (pet-executable-find "python")
+                          python-shell-virtualenv-root (pet-virtualenv-root))
+              (flymake-mode)
+              (lsp)
+              (setq-local dap-python-executable python-shell-interpreter))))
+#+end_src
    
 * beancount
 ** Installation