How to install casperjs on windows8?

Question

Software testing

Hello! I'm trying to install casperjs on Windows according to the manual docs.casperjs.org/en/latest/installation.html#casp...
I downloaded and unpacked phantomjs and casperjs inside this folder, the file structure is as follows:

-phantomjs
--casperjs

I registered environment variables C:\OpenServer\domains\phantomjs;C:\OpenServer\domains\phantomjs\casperjs\bin
Next, to understand if casper is installed, I run gitbush in the phantomjs folder and write the casperjs command, I get the error /c/Users/zk /AppData/Roaming/npm/casperjs: line 12: python: command not found
What am I doing wrong?