First, download the latest version of Python 2.7 from the official website. If you want to be sure you are installing a fully up-to-date version, click the ...
Scroll down to find the latest version of Python 2.7, and click the blue Download link, as shown at the bottom of the image below. On the next page, click the ...
Simply you can Download python2.7 with respect to your 32/64-bit processor and install it. or else follow this link.. It shows you all steps with screenshots.