python webpy bad argument to internal function，webpyargument,使用supervisor

python webpy bad argument to internal function，webpyargument,使用supervisor

使用supervisorctl + webpy + uwsgi时抛出如下错误：

Traceback (most recent call last):  File "/usr/local/lib/python2.7/dist-packages/web.py-0.37-py2.7.egg/web/application.py", line 271, in wsgi    self._cleanup()  File "/usr/local/lib/python2.7/dist-packages/web.py-0.37-py2.7.egg/web/application.py", line 112, in _cleanup    utils.ThreadedDict.clear_all()  File "/usr/local/lib/python2.7/dist-packages/web.py-0.37-py2.7.egg/web/utils.py", line 1213, in clear_all    for t in list(ThreadedDict._instances):SystemError: ../Objects/tupleobject.c:142: bad argument to internal function

这个问题只是偶尔发生，发生后重启supervisorctl中的进程可以解决问题，但是没有找到根源问题。