Webapp2 ImportError: cannot import name _thread

Question

我正在尝试从终端启动 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

这是 python 脚本：

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() 

Answer 1

在 Mac OS 系统上似乎存在 运行 这个问题。见

https://github.com/pypa/pip/issues/3165

要修复，我必须卸载粘贴，即 sudo pip uninstall paste 然后 运行， sudo pip install paste --ignore-installed six