无法安装humanize //python官方停止支援Python2 Setup tool

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Complete output from command python setup.py egg_info:
/usr/lib/python2.7/site-packages/pkg_resources/py2_warn.py:21: UserWarning: Setuptools will stop working on Python 2
************************************************************
You are running Setuptools on Python 2, which is no longer
supported and
>>> SETUPTOOLS WILL STOP WORKING <<<
in a subsequent release (no sooner than 2020-04-20).
Please ensure you are installing
Setuptools using pip 9.x or later or pin to `setuptools<45`
in your environment.
If you have done those things and are still encountering
this message, please follow up at
https://bit.ly/setuptools-py2-warning.
************************************************************
  sys.version_info < (3,) and warnings.warn(pre + "*" * 60 + msg + "*" * 60)
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-build-MkY32c/humanize/setup.py", line 3, in <module>
    with open("README.md", encoding="UTF-8") as f:
TypeError: 'encoding' is an invalid keyword argument for this function

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-MkY32c/humanize/