Bug Report: pyenv shell integrations not enabled

[cjw296]

Describe the bug

While pyenv is used to build these images, the shell integrations are missing.

What this means is that if you install a package that provides a console script, such as pytest, the console script will not be available in your Circle CI jobs.

To Reproduce

A job with the following steps will do it:

      - run:
          name: "Install PyTest"
          command: "python -m pip install pytest"
      - run:
          name: "Run PyTest"
          command: "pytest --help"

Expected behavior

I'd expect the pytest help message to be printed.

Workarounds

I'm going to try python -m pytest instead.

[jasonyoung-pearl]

We had a similar issue. When using tfenv in CircleCI, export PATH=$HOME/.tfenv/bin:$PATH would entirely break pyenv. Instead we had to symlink tfenv and terraform binaries to a path that already existed in PATH.