pip install -r requirements.txt
Collecting typing (from -r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/4a/bd/eee1157fc2d8514970b345d69cb9975dcd1e42cd7e61146ed841f6e68309/typing-3.6.6-py3-none-any.whl
Collecting tornado<6 (from -r requirements.txt (line 2))
  Downloading https://files.pythonhosted.org/packages/e6/78/6e7b5af12c12bdf38ca9bfe863fcaf53dc10430a312d0324e76c1e5ca426/tornado-5.1.1.tar.gz (516kB)
    100% |████████████████████████████████| 522kB 2.3MB/s 
Building wheels for collected packages: tornado
  Running setup.py bdist_wheel for tornado ... error
  Complete output from command /home/shinee/sites/script-server/env/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-9m5zqpq7/tornado/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmp8sqzva6bpip-wheel- --python-tag cp36:
  usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
     or: -c --help [cmd1 cmd2 ...]
     or: -c --help-commands
     or: -c cmd --help
  
  error: invalid command 'bdist_wheel'
  
  ----------------------------------------
  Failed building wheel for tornado
  Running setup.py clean for tornado
Failed to build tornado
Installing collected packages: typing, tornado
  Running setup.py install for tornado ... done
Successfully installed tornado-5.1.1 typing-3.6.6