old_contents: 
  import os
  
  # issue#7378 may happen with custom opencv. It doesn't hurt to disable opencl
  os.environ['OPENCV_OPENCL_RUNTIME'] = ''
  try:
      # issue#1924 may happen on old systems
      import cv2  # noqa
      if int(cv2.__version__.split('.')[0]) == 3:
          cv2.ocl.setUseOpenCL(False)
      # check if cv is built with cuda
      info = cv2.getBuildInformation().split('\n')
      for line in info:
          if 'use cuda' in line.lower():
              answer = line.split()[-1].lower()
              if answer == 'yes':
                  # issue#1197
                  print("OpenCV is built with CUDA support. "
                        "This may cause slow initialization or sometimes segfault with TensorFlow.")
              break
  except ImportError, TypeError:
      pass
  
  os.environ['TF_ENABLE_WINOGRAD_NONFUSED'] = '1'  # issue#9339
  os.environ['TF_AUTOTUNE_THRESHOLD'] = '3'   # use more warm-up
  os.environ['TF_AVGPOOL_USE_CUDNN'] = '1'   # issue#8566
  
  __version__ = '0.3.0'
  
new_contents: 
  import os
  
  # issue#7378 may happen with custom opencv. It doesn't hurt to disable opencl
  os.environ['OPENCV_OPENCL_RUNTIME'] = ''
  try:
      # issue#1924 may happen on old systems
      import cv2  # noqa
      if int(cv2.__version__.split('.')[0]) == 3:
          cv2.ocl.setUseOpenCL(False)
      # check if cv is built with cuda
      info = cv2.getBuildInformation().split('\n')
      for line in info:
          if 'use cuda' in line.lower():
              answer = line.split()[-1].lower()
              if answer == 'yes':
                  # issue#1197
                  print("OpenCV is built with CUDA support. "
                        "This may cause slow initialization or sometimes segfault with TensorFlow.")
              break
  except (ImportError, TypeError):
      pass
  
  os.environ['TF_ENABLE_WINOGRAD_NONFUSED'] = '1'  # issue#9339
  os.environ['TF_AUTOTUNE_THRESHOLD'] = '3'   # use more warm-up
  os.environ['TF_AVGPOOL_USE_CUDNN'] = '1'   # issue#8566
  
  __version__ = '0.3.0'
  
subject: fix build..