def iterencode(iter):
 return ','.join((as_unicode(v).replace(CHAR_ESCAPE, (CHAR_ESCAPE + CHAR_ESCAPE)).replace(CHAR_SEPARATOR, (CHAR_ESCAPE + CHAR_SEPARATOR)) for v in iter))

def iterencode ( iter ) : return ',' . join ( ( as_unicode ( v ) . replace ( CHAR_ESCAPE , ( CHAR_ESCAPE + CHAR_ESCAPE ) ) . replace ( CHAR_SEPARATOR , ( CHAR_ESCAPE + CHAR_SEPARATOR ) ) for v in iter ) )
encoding iterator .