title: How can I set powershell's env in python
body: <p>In <code>windows powershell terminal</code>. I can use <code>$Env:http_proxy=&quot;http://127.0.0.1:7890&quot;;$Env:https_proxy=&quot;http://127.0.0.1:7890&quot;</code>.</p>
  <p>But I now want execute a python shell in <code>windows powershell terminal</code> to do this. Can I do this? How to write the python script?</p>