mitmproxy在El Capitan 10.11.6中无效

Question

我使用以下命令安装mitmproxy而不是使用pip

  

brew install mitmproxy

然而，当我尝试运行mitmproxy时，我收到以下内容。可能是什么原因造成的？这是否意味着我有2个版本的6并需要卸载过时的？

$ mitmproxy
Traceback (most recent call last):
  File "/usr/local/bin/mitmproxy", line 7, in <module>
    from mitmproxy.main import mitmproxy
  File "/Library/Python/2.7/site-packages/mitmproxy/main.py", line 7, in <module>
    from six.moves import _thread  # PY3: We only need _thread.error, which is an alias of RuntimeError in 3.3+
ImportError: cannot import name _thread