Add support for code-cells in python layer

layers/+lang/python/README.org

@@ -25,6 +25,7 @@
   - [[#autoflake][autoflake]]
   - [[#pylookup][pylookup]]
   - [[#dap-mode-debugger-only-for-lsp-backend][dap-mode debugger (only for lsp backend)]]
+  - [[#notebook-and-code-cells][Notebook and code cells]]
 - [[#configuration][Configuration]]
   - [[#fill-column][Fill column]]
   - [[#sort-imports][Sort imports]]
@@ -70,6 +71,7 @@ This layer adds support for the Python language.
 - Fix a missing import statement with [[https://github.com/anachronic/importmagic.el][importmagic]]
 - Pip package manager with [[https://github.com/brotzeit/pippel][pippel]]
 - Interactive debugger using [[https://github.com/emacs-lsp/dap-mode][dap-mode]]
+- Support for ipython notebook and MATLAB-like cells using using [[https://github.com/astoff/code-cells.el][code-cells]]
 
 * Install
 ** Layer
@@ -306,6 +308,15 @@ To use =dap-mode= for debugging do:
   pip install "ptvsd>=4.2"
 #+END_SRC
 
+** Notebook and code cells
+To use =code-cells-mode= with ipython notebook automatically you should install
+[[https://github.com/mwouts/jupytext][jupytext]]. Make sure that the =ipython-notebook= layer is not used.
+
+Then you can evaluate the current cell in a REPL process with ~SPC m s c~ or all
+the cells above with ~SPC m s a~.
+You can also move to the next cell with ~SPC m g F~ and to the previous cell
+with ~SPC m g B~.
+
 * Configuration
 ** Fill column
 If you want to customize the fill column value, use something like this inside

layers/+lang/python/packages.el

@@ -24,6 +24,7 @@
 (defconst python-packages
   '(
     blacken
+    code-cells
     company
     counsel-gtags
     cython-mode
@@ -95,6 +96,19 @@
       (add-to-list 'spacemacs-jump-handlers-python-mode
                    '(anaconda-mode-find-definitions :async t)))))
 
+(defun python/init-code-cells ()
+  (use-package code-cells
+    :if (not (configuration-layer/layer-used-p 'ipython-notebook))
+    :defer t
+    :init
+    (progn
+      (add-hook 'python-mode-hook 'code-cells-mode)
+      (spacemacs/set-leader-keys-for-minor-mode 'code-cells-mode
+        "gB" 'code-cells-backward-cell
+        "gF" 'code-cells-forward-cell
+        "sc" 'code-cells-eval
+        "sa" 'code-cells-eval-above))))
+
 (defun python/post-init-company ()
   ;; backend specific
   (add-hook 'python-mode-local-vars-hook #'spacemacs//python-setup-company)