_codecs.py 文件源码

def lookup(encoding):
    """lookup(encoding) -> CodecInfo    
    Looks up a codec tuple in the Python codec registry and returns
    a CodecInfo object."""

    if encoding in ('utf-8', 'utf_8'):
       from javascript import console
       console.log('encoding', encoding)
       import encodings.utf_8
       return encodings.utf_8.getregentry()

    LookupError(encoding)