old_contents: from simplex import LinearProgram, Parser
  
  if __name__ == '__main__':
      lp = LinearProgram()
      parser = Parser(lp, 'example2.in')
      parser.parse()
      print(lp.runSimplex())
  
new_contents: #!/usr/bin/env python3
  
  from simplex import LinearProgram, Parser
  
  if __name__ == '__main__':
      lp = LinearProgram()
      parser = Parser(lp, 'example2.in')
      parser.parse()
      print(lp.runSimplex())
  
subject: Fix main.py