API: Add error kwarg to get_plugin method

spyder/api/plugins/new_api.py

@@ -404,9 +404,17 @@ def get_main(self):
         """
         return self._main
 
-    def get_plugin(self, plugin_name):
+    def get_plugin(self, plugin_name, error=True):
         """
-        Return a plugin instance by providing the plugin's NAME.
+        Get a plugin instance by providing its name.
+
+        Parameters
+        ----------
+        plugin_name: str
+            Name of the plugin from which its instance will be returned.
+        error: bool
+            Whether to raise errors when trying to return the plugin's
+            instance.
         """
         # Ensure that this plugin has the plugin corresponding to
         # `plugin_name` listed as required or optional.
@@ -416,7 +424,7 @@ def get_plugin(self, plugin_name):
 
         if plugin_name in full_set or Plugins.All in full_set:
             try:
-                return self._main.get_plugin(plugin_name)
+                return self._main.get_plugin(plugin_name, error=error)
             except SpyderAPIError as e:
                 if plugin_name in optional:
                     return None

spyder/plugins/layout/plugin.py

@@ -947,7 +947,7 @@ def restore_visible_plugins(self):
 
         # Restore visible plugins
         for plugin in visible_plugins:
-            plugin_class = self.main.get_plugin(plugin, error=False)
+            plugin_class = self.get_plugin(plugin, error=False)
             if plugin_class and plugin_class.dockwidget.isVisible():
                 plugin_class.dockwidget.raise_()
 
@@ -1084,7 +1084,7 @@ def tabify_new_plugins(self):
         # Tabify new internal plugins
         for plugin_name in self._get_internal_dockable_plugins():
             if plugin_name not in last_internal_dockable_plugins:
-                plugin = self.main.get_plugin(plugin_name, error=False)
+                plugin = self.get_plugin(plugin_name, error=False)
                 if plugin:
                     self.tabify_plugin(plugin, Plugins.Console)