old_contents: """Module for rover events."""
  
  __author__ = 'Salman Hashmi'
  __license__ = 'BSD License'
  
  
  import numpy as np
  
  
  def velocity_exceeded(Rover):
      """Check if velocity is under max_vel."""
      return Rover.vel < Rover.max_vel
  
  
  def front_path_clear(Rover):
      """Check if sufficient room ahead."""
      return len(Rover.nav_angles) >= Rover.go_forward
  
  
  def at_front_obstacle(Rover):
      """Check if rover is up against some obstacle."""
      front_stop_forward = 600
      return len(Rover.nav_angles) < front_stop_forward
  
  
  def at_left_obstacle(Rover):
      """Check if obstacle is left of rover."""
      return len(Rover.nav_angles_left) < Rover.stop_forward
  
  
  def sample_on_left(Rover):
      """Check if sample spotted on the left."""
      return len(Rover.rock_angles) >= 1 and np.mean(Rover.rock_angles) >= 0
  
  
  def sample_right_close(Rover):
      """Check if sample on the right and close by."""
      return np.mean(Rover.rock_angles) > -0.3 and np.mean(Rover.rock_dists) < 75
  
  
  def sample_in_view(Rover):
      """Check if sample still in view."""
      return len(Rover.rock_angles) >= 1
  
  
  def pointed_at_sample(Rover):
      """Check if rover pointed at +/- some sample heading."""
      return (len(Rover.rock_angles) >= 1 and
                 (np.mean(Rover.rock_angles) < 0.3 and
                  np.mean(Rover.rock_angles) > -0.3))
  
  
  def can_pickup_sample(Rover):
      """Check if Rover ready to pickup sample."""
      return Rover.near_sample and Rover.vel <= 0.1
  
new_contents: """Module for rover events."""
  
  __author__ = 'Salman Hashmi'
  __license__ = 'BSD License'
  
  
  import numpy as np
  
  
  def velocity_exceeded(Rover):
      """Check if velocity is under max_vel."""
      return Rover.vel < Rover.max_vel
  
  
  def front_path_clear(Rover):
      """Check if sufficient room ahead."""
      return len(Rover.nav_angles) >= Rover.go_forward
  
  
  def left_path_clear(Rover):
      """Check if sufficient room on left."""
      return len(Rover.nav_angles_left) >= 1500
  
  
  def at_front_obstacle(Rover):
      """Check if rover is up against some obstacle."""
      front_stop_forward = 600
      return len(Rover.nav_angles) < front_stop_forward
  
  
  def at_left_obstacle(Rover):
      """Check if obstacle is left of rover."""
      return len(Rover.nav_angles_left) < Rover.stop_forward
  
  
  def sample_on_left(Rover):
      """Check if sample spotted on the left."""
      return len(Rover.rock_angles) >= 1 and np.mean(Rover.rock_angles) >= 0
  
  
  def sample_right_close(Rover):
      """Check if sample on the right and close by."""
      return np.mean(Rover.rock_angles) > -0.3 and np.mean(Rover.rock_dists) < 75
  
  
  def sample_in_view(Rover):
      """Check if sample still in view."""
      return len(Rover.rock_angles) >= 1
  
  
  def pointed_at_sample(Rover):
      """Check if rover pointed at +/- some sample heading."""
      return (len(Rover.rock_angles) >= 1 and
                 (np.mean(Rover.rock_angles) < 0.3 and
                  np.mean(Rover.rock_angles) > -0.3))
  
  
  def can_pickup_sample(Rover):
      """Check if Rover ready to pickup sample."""
      return Rover.near_sample and Rover.vel <= 0.1
  
subject: create left_path_clear() function in events.py