code: def resolve_font(name):
      
      if os.path.exists(name):
          return os.path.abspath(name)
      fonts = get_font_files()
      if name in fonts:
          return fonts[name]
      raise FontNotFound("Can't find %r :'(  Try adding it to ~/.fonts" % name)
docs: Turns font names into absolute filenames
  
      This is case sensitive. The extension should be omitted.
  
      For example::
  
          >>> path = resolve_font('NotoSans-Bold')
  
          >>> fontdir = os.path.join(os.path.dirname(__file__), 'fonts')
          >>> noto_path = os.path.join(fontdir, 'NotoSans-Bold.ttf')
          >>> noto_path = os.path.abspath(noto_path)
          >>> assert path == noto_path
  
      Absolute paths are allowed::
  
          >>> resolve_font(noto_path) == noto_path
          True
  
      Raises :exc:`FontNotFound` on failure::
  
          >>> try:
          ...     resolve_font('blahahaha')
          ...     assert False
          ... except FontNotFound:
          ...     pass