Add shiny create option to choose from online template gallery (#1277)

Author: cpsievert

shiny/_main.py

@@ -483,6 +483,7 @@ def try_import_module(module: str) -> Optional[types.ModuleType]:
     "Dashboard": "dashboard",
     "Multi-page app with modules": "multi-page",
     "Custom JavaScript Component": "js-component",
+    "Choose from the Shiny Templates website": "external-gallery",
 }
 
 # These are templates which produce a Python package and have content filled in at

shiny/_template_utils.py

@@ -73,6 +73,14 @@ def template_query(
     # Define the control flow for the top level menu
     if template is None or template == "cancel":
         sys.exit(1)
+    elif template == "external-gallery":
+        url = "https://shiny.posit.co/py/templates"
+        print(f"Opening <{url}> in your browser.")
+        print("Choose a template and copy the `shiny create` command to use it.")
+        import webbrowser
+
+        webbrowser.open(url)
+        sys.exit(0)
     elif template == "js-component":
         js_component_questions(dest_dir=dest_dir, package_name=package_name)
         return