old_contents: # vim: ft=python fileencoding=utf-8 sw=4 et sts=4
  """Wrapper functions for the _image_enhance C extension."""
  
  from gi.repository import GdkPixbuf, GLib
  from vimiv import _image_enhance
  
  
  def enhance_bc(pixbuf, brightness, contrast):
      """Enhance brightness and contrast of a GdkPixbuf.Pixbuf.
  
      Args:
          pixbuf: Original GdkPixbuf.Pixbuf to work with.
          brightness: Float between -1.0 and 1.0 to change brightness.
          contrast: Float between -1.0 and 1.0 to change contrast.
      Return:
          The enhanced GdkPixbuf.Pixbuf
      """
      width = pixbuf.get_width()
      height = pixbuf.get_height()
      data = pixbuf.get_pixels()
      has_alpha = pixbuf.get_has_alpha()
      c_has_alpha = 1 if has_alpha else 0  # Numbers are easier for C
      rowstride = 4 * width if has_alpha else 3 * width
      # Update plain bytes using C extension
      # Pylint does not read this properly
      # pylint: disable=no-member
      data = _image_enhance.enhance_bc(data, c_has_alpha, brightness, contrast)
      gdata = GLib.Bytes.new(data)
      return GdkPixbuf.Pixbuf.new_from_bytes(
          gdata, GdkPixbuf.Colorspace.RGB, has_alpha, 8, width, height, rowstride)
  
new_contents: # vim: ft=python fileencoding=utf-8 sw=4 et sts=4
  """Wrapper functions for the _image_enhance C extension."""
  
  from gi.repository import GdkPixbuf, GLib
  from vimiv import _image_enhance
  
  
  def enhance_bc(pixbuf, brightness, contrast):
      """Enhance brightness and contrast of a GdkPixbuf.Pixbuf.
  
      Args:
          pixbuf: Original GdkPixbuf.Pixbuf to work with.
          brightness: Float between -1.0 and 1.0 to change brightness.
          contrast: Float between -1.0 and 1.0 to change contrast.
      Return:
          The enhanced GdkPixbuf.Pixbuf
      """
      data = pixbuf.get_pixels()
      has_alpha = pixbuf.get_has_alpha()
      c_has_alpha = 1 if has_alpha else 0  # Numbers are easier for C
      # Update plain bytes using C extension
      # Pylint does not read this properly
      # pylint: disable=no-member
      data = _image_enhance.enhance_bc(data, c_has_alpha, brightness, contrast)
      gdata = GLib.Bytes.new(data)
      return GdkPixbuf.Pixbuf.new_from_bytes(gdata,
                                             pixbuf.get_colorspace(),
                                             has_alpha,
                                             pixbuf.get_bits_per_sample(),
                                             pixbuf.get_width(),
                                             pixbuf.get_height(),
                                             pixbuf.get_rowstride())
  
subject: Use rowstride directly from GdkPixbuf in enhance