old_contents: #!/usr/bin/env python
  
  import os.path as osp
  
  import fcn
  
  
  def main():
      fcn.datasets.VOC2012ClassSeg.download()
      fcn.datasets.SBDClassSeg.download()
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python
  
  import fcn
  
  
  def main():
      fcn.datasets.VOC2012ClassSeg.download()
      fcn.datasets.SBDClassSeg.download()
  
  
  if __name__ == '__main__':
      main()
  
subject: Fix for flake8