def load_crypto_meta(value):
 def b64_decode_meta(crypto_meta):
  return {str(name): (base64.b64decode(val) if (name in ('iv', 'key')) else (b64_decode_meta(val) if isinstance(val, dict) else (val.encode('utf8') if six.PY2 else val))) for (name, val) in crypto_meta.items()}
 try:
  if (not isinstance(value, six.string_types)):
   raise ValueError('crypto meta not a string')
  val = json.loads(urlparse.unquote_plus(value))
  if (not isinstance(val, collections.Mapping)):
   raise ValueError('crypto meta not a Mapping')
  return b64_decode_meta(val)
 except (KeyError, ValueError, TypeError) as err:
  msg = ('Bad crypto meta %r: %s' % (value, err))
  raise EncryptionException(msg)

def load_crypto_meta ( value ) : def b64_decode_meta ( crypto_meta ) : return { str ( name ) : ( base64 . b64decode ( val ) if ( name in ( 'iv' , 'key' ) ) else ( b64_decode_meta ( val ) if isinstance ( val , dict ) else ( val . encode ( 'utf8' ) if six . PY2 else val ) ) ) for ( name , val ) in crypto_meta . items ( ) } try : if ( not isinstance ( value , six . string_types ) ) : raise ValueError ( 'crypto meta not a string' ) val = json . loads ( urlparse . unquote_plus ( value ) ) if ( not isinstance ( val , collections . Mapping ) ) : raise ValueError ( 'crypto meta not a Mapping' ) return b64_decode_meta ( val ) except ( KeyError , ValueError , TypeError ) as err : msg = ( 'Bad crypto meta %r: %s' % ( value , err ) ) raise EncryptionException ( msg )
build the crypto_meta from the json object .