Could not install packages due to an EnvironmentError: [Errno 2]

Question

I`ve recently started having problems with pip installs. Every time I run this kind of command in Terminal, I get an error:

Could not install packages due to:

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Answer 1

copy all the files in "/home/shuaizhang/.local/lib/python3.6/site-packages/pip-19.0.1.dist-info/pip-19.0.1.dist-info/" to the upper directory "/home/shuaizhang/.local/lib/python3.6/site-packages/pip-19.0.1.dist-info/"

Then, pip3 install --user --upgrade pip , solved my problem.

I hope this will help.