[PYTHON] What to do if you are told "Import Error: cannot import name'HTTPSHandler'" when building a virtual environment using virtualenv

background

I wanted to build a python environment using virtualenv in my lab, but I got the error ʻImportError: cannot import name'HTTPSHandler'`. As a memorandum.

Execution environment

CentOS 7

procedure

  1. Install openssl-devel with yum install openssl-devel
  2. Remake python

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