Introduction to Python 2.7.18
At 23:06 on April 20, 2020, Beijing time, Python 2 maintainer and Release Manager Benjamin Peterson officially announced in the mail group that Python 2.7.18 was officially released, and this is the last version of Python 2.
20 years after the release of Python 2 and 11 years after the stable version of Python 2.7 was maintained, Python author Guido Van Rossum announced this week that Python 2.7.18, which will be launched from now on, will be the end of Python 2. He recommends that programmers, businesses/organizations, etc. migrate to Python 3 as soon as possible to continue receiving free first-hand support.
Official website download address:
Python Release Python 2.7.18 | Python.org 
https://www.python.org/downloads/release/python-2718/ My 64-bit win10 downloaded the files in the red box below
installation steps
It is installed on the C drive by default. During the installation process, pay attention to select pip and Add python.exe to Path, so that environment variables can be added automatically.
After that, click Done.
C:\python27 is the python installation directory, and the file C:\python27\Scripts is a pip file (python package management tool).
If there is no Add python.exe to Path, manually add environment variables
Add environment variables: Click My Computer—Properties—Advanced System Settings—Environment Variables—System Variable Path—Edit, add C:\python27 and C:\python27\Scripts, and separate variables with semicolons ";".
postscript
After the installation is complete, for the .py file, check the properties, make sure the opening method is as follows, double-click it, and it will run.
Reference link:
( 3 messages) Python2 installation tutorial (taking the final version of Python2.7.18 as an example)