old_contents: # imagecodecs/__main__.py
  
  # Copyright (c) 2019-2020, Christoph Gohlke
  # This source code is distributed under the BSD 3-Clause license.
  
  """Imagecodecs package command line script."""
  
  import sys
  
  from matplotlib.pyplot import show
  
  from tifffile import imshow, askopenfilename, Timer
  
  from .imagecodecs import imread
  
  
  def main(argv=None, verbose=True, codec=None):
      """Imagecodecs command line usage main function."""
      if argv is None:
          argv = sys.argv
  
      if len(argv) < 2:
          filename = askopenfilename(title='Select an image file')
          if not filename:
              print('No file selected')
              return -1
      elif len(argv) == 2:
          filename = argv[1]
      else:
          print('Usage: imagecodecs filename')
          return -1
  
      timer = Timer()
      try:
          timer.start('Reading image')
          image, codec = imread(filename, return_codec=True)
          print(timer)
      except ValueError as exception:
          print('failed')
          image = None
          message = str(exception)
  
      if verbose:
          print()
      if image is None:
          print('Could not decode the file\n')
          if verbose:
              print(message)
          return -1
      if verbose:
          print(f'{codec.__name__.upper()}: {image.shape} {image.dtype}')
  
      imshow(image, title=filename)
      show()
      return 0
  
  
  sys.exit(main())
  
new_contents: # imagecodecs/__main__.py
  
  # Copyright (c) 2019-2020, Christoph Gohlke
  # This source code is distributed under the BSD 3-Clause license.
  
  """Imagecodecs package command line script."""
  
  import sys
  
  from matplotlib.pyplot import show
  
  from tifffile import imshow, askopenfilename, Timer
  
  from .imagecodecs import imread
  
  
  def main(argv=None, verbose=True, codec=None):
      """Imagecodecs command line usage main function."""
      if argv is None:
          argv = sys.argv
  
      if len(argv) < 2:
          filename = askopenfilename(title='Select an image file')
          if not filename:
              print('No file selected')
              return -1
      elif len(argv) == 2:
          filename = argv[1]
      else:
          print('Usage: imagecodecs filename')
          return -1
  
      timer = Timer()
      try:
          timer.start('Reading image')
          image, codec = imread(filename, return_codec=True)
          print(timer)
      except ValueError as exception:
          print('failed')
          image = None
          message = str(exception)
  
      if verbose:
          print()
      if image is None:
          print('Could not decode the file\n')
          if verbose:
              print(message)
          return -1
      if verbose:
          print(f'{codec.__name__.upper()}: {image.shape} {image.dtype}')
  
      imshow(image, title=filename, interpolation='nearest')
      show()
      return 0
  
  
  sys.exit(main())
  
subject: Update imagecodecs/__main__.py