Python Webapp2导入错误：无法导入名称\u线程

我试图从终端启动webapp2开发服务器，但出现此错误

> File "/Users/mertbarutcuoglu/Desktop/hellowebapp2/main.py", line 12,
> in main
>     from paste import httpserver   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/paste/httpserver.py",
> line 29, in <module>
>     from six.moves import _thread ImportError: cannot import name _thread

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在Mac OS系统上运行此功能似乎有问题。看

为了解决这个问题，我必须卸载粘贴，即sudo pip卸载粘贴，然后运行， sudo pip安装粘贴--忽略已安装的六个

此问题是否相同？

import webapp2

class HelloWebapp2(webapp2.RequestHandler):
    def get(self):
        self.response.write('Hello, webapp2!')

app = webapp2.WSGIApplication([
    ('/', HelloWebapp2),
], debug=True)

def main():
    from paste import httpserver
    httpserver.serve(app, host='127.0.0.1', port='8080')

if __name__ == '__main__':
    main()