repr.py 文件源码

def fallback_repr(self):
        try:
            info = ''.join(format_exception_only(*sys.exc_info()[:2]))
        except Exception:  # pragma: no cover
            info = '?'
        if PY2:
            info = info.decode('utf-8', 'ignore')
        return u'<span class="brokenrepr">&lt;broken repr (%s)&gt;' \
               u'</span>' % escape(info.strip())