old_contents: import hal
  
  from wpilib.timedrobot import TimedRobot
  from wpilib.command.scheduler import Scheduler
  from wpilib.livewindow import LiveWindow
  
  
  class CommandBasedRobot(TimedRobot):
      '''
      The base class for a Command-Based Robot. To use, instantiate commands and
      trigger them.
      '''
  
      def startCompetition(self):
          """Initalizes the scheduler before starting robotInit()"""
  
          self.scheduler = Scheduler.getInstance()
          super().startCompetition()
  
  
      def commandPeriodic(self):
          '''
          Run the scheduler regularly. If an error occurs during a competition,
          prevent it from crashing the program.
          '''
  
          try:
              self.scheduler.run()
          except Exception as error:
              if not self.ds.isFMSAttached():
                  raise
  
              '''Just to be safe, stop all running commands.'''
              self.scheduler.removeAll()
  
              self.handleCrash(error)
  
  
      autonomousPeriodic = commandPeriodic
      teleopPeriodic = commandPeriodic
      disabledPeriodic = commandPeriodic
  
  
      def testPeriodic(self):
          '''
          Test mode will not run normal commands, but motors can be controlled
          and sensors viewed with the SmartDashboard.
          '''
  
          LiveWindow.run()
  
  
      def handleCrash(self, error):
          '''
          Called if an exception is raised in the Scheduler during a competition.
          Writes an error message to the driver station by default. If you want
          more complex behavior, override this method in your robot class.
          '''
  
          self.ds.reportError(str(error), printTrace=True)
  
new_contents: from wpilib import TimedRobot
  from wpilib.command import Scheduler
  
  
  class CommandBasedRobot(TimedRobot):
      '''
      The base class for a Command-Based Robot. To use, instantiate commands and
      trigger them.
      '''
  
      def startCompetition(self):
          """Initalizes the scheduler before starting robotInit()"""
  
          self.scheduler = Scheduler.getInstance()
          super().startCompetition()
  
      def commandPeriodic(self):
          '''
          Run the scheduler regularly. If an error occurs during a competition,
          prevent it from crashing the program.
          '''
  
          try:
              self.scheduler.run()
          except Exception as error:
              if not self.ds.isFMSAttached():
                  raise
  
              '''Just to be safe, stop all running commands.'''
              self.scheduler.removeAll()
  
              self.handleCrash(error)
  
      autonomousPeriodic = commandPeriodic
      teleopPeriodic = commandPeriodic
      disabledPeriodic = commandPeriodic
      # testPeriodic deliberately omitted
  
      def handleCrash(self, error):
          '''
          Called if an exception is raised in the Scheduler during a competition.
          Writes an error message to the driver station by default. If you want
          more complex behavior, override this method in your robot class.
          '''
  
          self.ds.reportError(str(error), printTrace=True)
  
subject: Remove LiveWindow call from CommandBasedRobot