Merge branch 'dev' into deprecate-dash-table

Author: T4rk1n

dash/_get_app.py

@@ -39,6 +39,13 @@ def wrap(*args, **kwargs):
 
 
 def get_app():
+    """
+    Return the current Dash app instance.
+
+    Useful in multi-page apps when Python files within the `pages/` folder
+    need to reference the `app` object but importing it directly would cause
+    a circular import error.
+    """
     try:
         ctx_app = app_context.get()
         if ctx_app is not None:

dash/dash.py

@@ -937,13 +937,17 @@ def _config(self):
             "plotly_version": plotly_version,
         }
         if self._plotly_cloud is None:
-            try:
-                # pylint: disable=C0415,W0611
-                import plotly_cloud  # noqa: F401
-
+            if os.getenv("DASH_ENTERPRISE_ENV") == "WORKSPACE":
+                # Disable the placeholder button on workspace.
                 self._plotly_cloud = True
-            except ImportError:
-                self._plotly_cloud = False
+            else:
+                try:
+                    # pylint: disable=C0415,W0611
+                    import plotly_cloud  # noqa: F401
+
+                    self._plotly_cloud = True
+                except ImportError:
+                    self._plotly_cloud = False
 
         config["plotly_cloud_installed"] = self._plotly_cloud
         if not self.config.serve_locally: