Add empty command

qutebrowser/commands.py

@@ -26,13 +26,13 @@ class CommandParser(QObject):
 
 class Command(QObject):
     nargs = 0
-    name = ''
+    name = None
     key = None
     signal = None
 
     @classmethod
     def bind(cls):
-        if cls.name:
+        if cls.name is not None:
             cmd_dict[cls.name] = cls()
 
     def check(self, argv):
@@ -46,6 +46,11 @@ class Command(QObject):
             raise NotImplementedError
         self.signal.emit()
 
+class EmptyCmd(Command):
+    nargs = 0
+    name = ''
+    key = ':'
+
 class OpenCmd(Command):
     nargs = 1
     name = 'open'

qutebrowser/keys.py

@@ -9,6 +9,7 @@ class KeyParser(QObject):
     def from_cmd_dict(self, d, parent):
         for cmd in d.values():
             if cmd.key is not None:
+                print('reg: {} -> {}'.format(cmd.name, cmd.key))
                 sc = QShortcut(parent)
                 sc.setKey(QKeySequence(cmd.key))
                 sc.setContext(Qt.WidgetWithChildrenShortcut)