repr.py 文件源码

def regex_repr(self, obj):
        pattern = repr(obj.pattern)
        if PY2:
            pattern = pattern.decode('string-escape', 'ignore')
        else:
            pattern = codecs.decode(pattern, 'unicode-escape', 'ignore')
        if pattern[:1] == 'u':
            pattern = 'ur' + pattern[1:]
        else:
            pattern = 'r' + pattern
        return u're.compile(<span class="string regex">%s</span>)' % pattern