Without information about your operating system and how you installed Python, guesswork is involved. Things you might try:
1. Your system may call the command pip3 rather than pip (to distinguish it from the obsolete version).
2. Your operating system / package manager may provide a packaged version of pip that works well in your managed environment. For example, on Debian/Ubuntu systems you might do:
sudo apt install python3-pip
3. If you installed Python from
python.org (and some other versions), you can use `ensurepip` to get the right pip.
python -m ensurepip
4. Failing all those, there is a get-pip.py script that will attempt to bootstrap a pip installation.