old_contents: #import the needed modules
  from mcpi.minecraft import *
  from mcpi.block import *
  from time import sleep
  
  if __name__ == "__main__":
  
      # Create a connection to the Minecraft game
      mc = Minecraft.create()
  
      # Get the player position
      playerPosition = mc.player.getTilePos()
  
      wallStartXposn = playerPosition.x + 6
      wallStartYposn = playerPosition.y + 1
      wallZposn = playerPosition.z + 6
  
      wallEndXposn = wallStartXposn + 10
      wallEndYposn = wallStartYposn + 6
  
      # Create a wall
      mc.setBlocks(wallStartXposn , wallStartYposn, wallZposn,\
                   wallEndXposn,    wallEndYposn,   wallZposn, \
                   DIAMOND_BLOCK)
  
new_contents: #import the needed modules
  from mcpi.minecraft import *
  from mcpi.block import *
  
  
  if __name__ == "__main__":
  
      # Create a connection to the Minecraft game
      mc = Minecraft.create()
  
      # Get the player position
      playerPosition = mc.player.getTilePos()
  
      wallStartXposn = playerPosition.x + 6
      wallStartYposn = playerPosition.y + 1
      wallZposn = playerPosition.z + 6
  
      wallEndXposn = wallStartXposn + 10
      wallEndYposn = wallStartYposn + 6
  
      # Create a wall
      mc.setBlocks(wallStartXposn , wallStartYposn, wallZposn,\
                   wallEndXposn,    wallEndYposn,   wallZposn, \
                   DIAMOND_BLOCK)
  
subject: Remove unused import