fix loading of skill, remove stale nbextensions no_exec_dunder and nbviewer_theme

src/jupyter_contrib_nbextensions/migrate.py

@@ -29,6 +29,7 @@ def _migrate_require_paths(logger=None):
     mappings = {
         'notebook': [
             ('config/config_menu/main', 'nbextensions_configurator/config_menu/main'),  # noqa: E501
+            ('skill/skill', 'skill/main'),
             ('yapf_ext/yapf_ext', 'code_prettify/code_prettify'),
         ] + [(req, req.split('/', 1)[1]) for req in [
             'codemirrormode/skill/skill',

src/jupyter_contrib_nbextensions/nbextensions/skill/main.js

@@ -0,0 +1,14 @@
+define(function() {
+	"use strict";
+	// jupyter nbextensions must export a load_ipython_extension function to
+	// avoid throwing an error. Also, loading the module should do nothing
+	// unless the function is called, so we wrap requiring the codemirror mode
+	// in the load call.
+	return {
+		load_ipython_extension: function () {
+			require(['./skill'], function () {
+				console.log('[SKILL Syntax] loaded');
+			});
+		}
+	};
+});

src/jupyter_contrib_nbextensions/nbextensions/skill/skill.yaml

@@ -2,5 +2,5 @@ Type: IPython Notebook Extension
 Name: SKILL Syntax
 Description: Enable SKILL syntax support for CodeMirror
 Link: README.md
-Main: skill.js
+Main: main.js
 Compatibility: 4.x