在Flask项目部署到linux上时出现了一个问题，但是在windows上是好的，没有问题。以下是bug

Traceback (most recent call last):

  File "foodie.py", line 10, in <module>

    app.run(debug=True)

  File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 772, in run

    run_simple(host, port, self, **options)

  File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 622, in run_simple

    reloader_type)

  File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 265, in run_with_reloader

    reloader.run()

  File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 155, in run

    for filename in chain(_iter_module_files(), self.extra_files):

  File "/usr/local/lib/python2.7/dist-packages/werkzeug/_reloader.py", line 70, in _iter_module_files

    for package_path in getattr(module, '__path__', ()):

  File "/usr/lib/python2.7/dist-packages/six.py", line 116, in __getattr__

    _module = self._resolve()

  File "/usr/lib/python2.7/dist-packages/six.py", line 105, in _resolve

    return _import_module(self.mod)

  File "/usr/lib/python2.7/dist-packages/six.py", line 76, in _import_module

    __import__(name)

ImportError: No module named _winreg

本以为是第三方库没有安装正确，重装了还是出现了问题。

网上给出了方法是修改

/usr/lib/python2.7/dist-packages/six.py

将__getattr__函数中

   if (attr in ("__file__", "__name__", "__path__") and  self.mod not in sys.modules):

          raise AttributeError

    _module = self._resolve()

改为

    if (attr in ("__file__", "__name__", "__path__") and  self.mod not in sys.modules):

          raise AttributeError(attr)

    try:

          _module = self._resolve()

     except ImportError:

          raise AttributeError(attr)

问题解决

链接

https://bitbucket.org/gutworth/six/commits/e914c4c89b073b7eacb440a8bf456dd1d28018ba

http://*.com/questions/11133506/importerror-while-importing-winreg-module-of-python