CI error: pip not installed on 2.7 about cimg-python HOT 3 CLOSED

There seems to be a PATH issue with regard to interactive vs non-interactive Bash sessions here. Investigating.

The Dockerfile itself checks pip before finishing so strange:

from cimg-python.

🎉

from cimg-python.

It also doesn't seem to be in root's $PATH, even in an interactive session

circleci@78b8e0c69367:~/project$ pip --version
pip 19.2.3 from /home/circleci/.pyenv/versions/3.7.7/lib/python3.7/site-packages/pip (python 3.7)
circleci@78b8e0c69367:~/project$ sudo pip --version
sudo: pip: command not found
circleci@78b8e0c69367:~/project$ sudo su - 
root@78b8e0c69367:~# pip --version
-su: pip: command not found
root@78b8e0c69367:~# logout
circleci@78b8e0c69367:~/project$ which pip
/home/circleci/.pyenv/shims/pip

pip does work as the circleci user, but was still confusing, especially since Circle's example docs suggest using sudo pip install pipenv (https://circleci.com/docs/2.0/language-python/#cache-dependencies)

from cimg-python.