[PYTHON] Django cannot be installed in the development environment of pipenv + pyenv

 pipenv --python 3.6

After

 pipenv install django

Then

 ModuleNotFoundError: No module named 'pip._internal.download'

Something comes out and I can't install it. By the way, the version of pipenv is

% pipenv --version
pipenv, version 2018.7.1

It was said that pyenv could not be used if the latest version of pipenv was used, so I intentionally included an older version.

■ Solution I solved it by updating pipenv to the latest version.

sudo pip3 install pipenv --force-reinstall

Just run.

I don't know the reason, but I solved it for some reason. I guess, but the order of installation may affect (?) pipenv (latest version) → pyenv → pipenv (old version) → pipenv (latest version) It was the turn of.

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