from collections import deque
def reverse_lines(filename):
  try:
    with open(filename,'r') as f:
      lines = deque()
      for line in f:
        lines.append(line)
      while lines:
        yield lines.pop()
  except FileNotFoundError:
    print("File not found")

for line in reverse_lines(r'/content/example.txt'):
  print(line)