Properly Installing Python

There’s a good chance that you already have Python on your operating system.

If so, you do not need to install or configure anything else to use Python.Having said that, I would strongly recommend that you install the tools andlibraries described in the guides below before you start building Pythonapplications for real-world use. In particular, you should always installSetuptools, Pip, and Virtualenv — they make it much easier for you to useother third-party Python libraries.

Note

The use of Python 3 is highly preferred over Python 2. Consider upgrading your applications and infrastructure if you find yourself still using Python 2 in production today. If you are using Python 3, congratulations — you are indeed a person of excellent taste.—Kenneth Reitz

Installation Guides

These guides go over the proper installation of Pythonfor development purposes, as well as setuptools, pip and virtualenv.

Python 3 Installation Guides

• Python 3 on MacOS.
• Python 3 on Windows.
• Python 3 on Linux.

Legacy Python 2 Installation Guides

• Python 2 on MacOS.
• Python 2 on Microsoft Windows.
• Python 2 on Linux.

原文: https://docs.python-guide.org/starting/installation/