This question may be addressed more effectively by a forum that supports your OS, or if you are using a third-party python, the forum that supports your python distribution. For linux, pip is usually available as a distro package, but may be included with a basic installation. For macOS, Apple does not recommend use of the "system" python for user processing. There are many 3rd party python distributions that are suitable for user processing on macOS.
brew install python
In case you have both python2 & python3 installed on machine
python2.7 -m ensurepip --default-pip
simply should solve the issue.
If instead you are missing pip from python 3 then simply change python2.7 to python3 in the command above.
Furthermore, if you have issues with 'request' modules not working I can help as well. The next step after installing pip would be installing request. While you are supposed to be able to do so with pip, I was unable to install for Python 2.7 (my OS default). You CAN install using easy install like so :
sudo easy_install requests
Sudo is necessary here as you are installing in /usr/..... After that, you should try running the processor installation again. I am using 7.5.3. and was able to successfully install 12/14 steps with mine failing at that point. After performing these two steps you should be able to successfully finish installation. Again, I made a lot of assumptions but I hope you are able to find some help in this.