title: How to fix "No module named 'encodings'" in Python3.7.1?
body: <p>I tried to start uwsgi for myproject(mywords_dict):</p>
  
  <pre><code>uwsgi --http :8000  -H /root/mywords_dict/env --chdir mywords_dict -w mywords_dict.wsgi
  </code></pre>
  
  <p>But received the following error:</p>
  
  <pre><code>Fatal Python error: initfsencoding: Unable to get the locale encoding
  ModuleNotFoundError: No module named 'encodings'
  </code></pre>
  
  <p>I am so confused that uwsgi can work well if I run it after entering virtual env .Python version of 'mywords_dict' is 3.7.1. I have checked that the there is encoding package in mywords_dic/env. And I can run python  successfully from there. Does anyone can help?</p>
  
  <pre><code>*** Starting uWSGI 2.0.18 (64bit) on [Fri Aug 30 00:15:16 2019] ***
  compiled with version: 4.8.5 20150623 (Red Hat 4.8.5-36) on 29 August 
  2019 13:49:55
  os: Linux-3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018
  nodename: VM_0_17_centos
  machine: x86_64
  clock source: unix
  pcre jit disabled
  detected number of CPU cores: 1
  current working directory: /root
  detected binary path: /root/.pyenv/versions/3.7.1/bin/uwsgi
  uWSGI running as root, you can use --uid/--gid/--chroot options
  *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
  chdir() to mywords_dict
  *** WARNING: you are running uWSGI without its master process manager ***
  your processes number limit is 3882
  your memory page size is 4096 bytes
  detected max file descriptor number: 100001
  lock engine: pthread robust mutexes
  thunder lock: disabled (you can enable it with --thunder-lock)
  uWSGI http bound on :8000 fd 4
  spawned uWSGI http 1 (pid: 22645)
  uwsgi socket 0 bound to TCP address 127.0.0.1:42301 (port auto-assigned) fd 3
  uWSGI running as root, you can use --uid/--gid/--chroot options
  *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** 
  Python version: 3.7.1 (default, Nov 11 2018, 01:35:46)  [GCC 4.8.5 20150623 (Red Hat 4.8.5-28)]
  Set PythonHome to /root/mywords_dict/env
  **Fatal Python error: initfsencoding: Unable to get the locale encoding
  ModuleNotFoundError: No module named 'encodings'**
  </code></pre>