text: class InvalidTemplateLibrary(Exception):
      def __init__(self, why=None):
          Exception.__init__(self, why)
          self.why = why
  
  
  class HotkeyConflictWarning(Warning):
      ...
  
  
  class PanelConflictWarning(Warning):
      ...
  
  
  class ToolbarConflictWarning(Warning):
      ...
  