Install on macOS doesn't work about amazon-dash

[Nekmo]

Hello, I am trying to reproduce the error without success on my machine:

(tmp-71d4da54785d17c) [nekmo@homura ~/.virtualenvs/tmp-71d4da54785d17c]$ pip install pip==20.2b1 setuptools==50.3.2
Collecting pip==20.2b1
  Downloading pip-20.2b1-py2.py3-none-any.whl (1.5 MB)
     |████████████████████████████████| 1.5 MB 3.5 MB/s 
Collecting setuptools==50.3.2
  Using cached setuptools-50.3.2-py3-none-any.whl (785 kB)
Installing collected packages: setuptools, pip
  Attempting uninstall: setuptools
    Found existing installation: setuptools 51.0.0
    Uninstalling setuptools-51.0.0:
      Successfully uninstalled setuptools-51.0.0
  Attempting uninstall: pip
    Found existing installation: pip 20.3.3
    Uninstalling pip-20.3.3:
      Successfully uninstalled pip-20.3.3
Successfully installed pip-20.2b1 setuptools-50.3.2
(tmp-71d4da54785d17c) [nekmo@homura ~/.virtualenvs/tmp-71d4da54785d17c]$ pip install click-default-group
Collecting click-default-group
  Using cached click-default-group-1.2.2.tar.gz (3.3 kB)
Collecting click
  Using cached click-7.1.2-py2.py3-none-any.whl (82 kB)
Building wheels for collected packages: click-default-group
  Building wheel for click-default-group (setup.py) ... done
  Created wheel for click-default-group: filename=click_default_group-1.2.2-py3-none-any.whl size=3384 sha256=41c1a01ca645c3ffb6cb6fa179211601451e3b4e2758c5e3353612b026e044fe
  Stored in directory: /home/nekmo/.cache/pip/wheels/f1/e3/67/f79591b232f0deb8e51317fa288eef8b996e2d6cf033bdc1a0
Successfully built click-default-group
Installing collected packages: click, click-default-group
Successfully installed click-7.1.2 click-default-group-1.2.2
WARNING: You are using pip version 20.2b1; however, version 21.0 is available.
You should consider upgrading via the '/home/nekmo/.virtualenvs/tmp-71d4da54785d17c/bin/python -m pip install --upgrade pip' command.
(tmp-71d4da54785d17c) [nekmo@homura ~/.virtualenvs/tmp-71d4da54785d17c]$ python --version
Python 3.9.1
(tmp-71d4da54785d17c) [nekmo@homura ~/.virtualenvs/tmp-71d4da54785d17c]$ 

Can you please try running the following command on your machine?

pip install click-default-group

Thanks! :)

[controlcde]

I don't know what I have done, but after executing python setup.py install again the install process get through.