def list_fonts():
 vals = _list_fonts()
 for font in _vispy_fonts:
  vals += ([font] if (font not in vals) else [])
 vals = sorted(vals, key=(lambda s: s.lower()))
 return vals

def list_fonts ( ) : vals = _list_fonts ( ) for font in _vispy_fonts : vals += ( [ font ] if ( font not in vals ) else [ ] ) vals = sorted ( vals , key = ( lambda s : s . lower ( ) ) ) return vals
return a list of all fonts matching any of the extensions .