old_contents: """Tool to check codepoint coverage in all font weights.
  
  Ex: If FamilyName-Regular.ttf supports codepoints A-D
         FamilyName-Bold.ttf supports codepoints B-E
         FamilyName-Light.ttf supports codepoints A-E
  
  $ python tools/font_wieghts+coverage.py ofl/familyname
  FamilyName-Regular.ttf failed
  0x0045
  FamilyName-Bold.ttf failed
  0x0041
  FamilyName-Light.ttf passed
  """
  
  
  import os
  from os import listdir
  import sys
  
  from google.apputils import app
  from util import google_fonts as fonts
  
  
  def main(argv):
    if len(argv) != 2 or not os.path.isdir(argv[1]):
      sys.exit('Must have one argument, a directory containing font files.')
  
    dirpath = argv[1]
    cps = set()
    for f in _GetFontFiles(dirpath):
      cps.update(fonts.CodepointsInFont(os.path.join(dirpath, f)))
  
    for f in _GetFontFiles(dirpath):
      diff = cps - fonts.CodepointsInFont(os.path.join(dirpath, f))
      if bool(diff):
        print '%s failed' % (f)
        for c in diff:
          print '0x%04X' % (c)
      else:
        print '%s passed' % (f)
  
  
  def _GetFontFiles(path):
    """Returns list of font files in a path.
  
    Args:
      path: directory path
    Returns:
      Set of font files
    """
    return [f for f in listdir(path)
            if os.path.splitext(f)[1] in ('.ttf', '.otf')]
  
  if __name__ == '__main__':
    app.run()
  
new_contents: """Tool to check codepoint coverage in all font weights.
  
  Ex: If FamilyName-Regular.ttf supports codepoints A-D
         FamilyName-Bold.ttf supports codepoints B-E
         FamilyName-Light.ttf supports codepoints A-E
  
  $ python tools/font_weights_coverage.py ofl/familyname
  FamilyName-Regular.ttf failed
  0x0045
  FamilyName-Bold.ttf failed
  0x0041
  FamilyName-Light.ttf passed
  """
  
  
  import os
  from os import listdir
  import sys
  
  from google.apputils import app
  from util import google_fonts as fonts
  
  
  def main(argv):
    if len(argv) != 2 or not os.path.isdir(argv[1]):
      sys.exit('Must have one argument, a directory containing font files.')
  
    dirpath = argv[1]
    cps = set()
    for f in _GetFontFiles(dirpath):
      cps.update(fonts.CodepointsInFont(os.path.join(dirpath, f)))
  
    for f in _GetFontFiles(dirpath):
      diff = cps - fonts.CodepointsInFont(os.path.join(dirpath, f))
      if bool(diff):
        print '%s failed' % (f)
        for c in diff:
          print '0x%04X' % (c)
      else:
        print '%s passed' % (f)
  
  
  def _GetFontFiles(path):
    """Returns list of font files in a path.
  
    Args:
      path: directory path
    Returns:
      Set of font files
    """
    return [f for f in listdir(path)
            if os.path.splitext(f)[1] in ('.ttf', '.otf')]
  
  if __name__ == '__main__':
    app.run()
  
subject: Fix typo