I really like Invoke / Fabric for Python projects, though it feels weird to use in non-Python projects when it comes to dependencies. [Now I have to explain to non-Python people things like virtual envs, pipenv vs pip vs pipsi, pyenv, etc.]

Just curious if you install Invoke individually for each project or keep one global install?

I suppose I could always git exclude the tasks.py Invoke files.

I usually keep Invoke globally installed that way I can use it for setting up and interacting with pipenvs externally. Most of my calls beside the initial setup make use of 'pipenv run <command>' that way I never actually have to navigate inside of the virtualenv for most cases.

I'll second invoke. I use it for all of my python projects now and I love working with it. It makes it very clean to manage more complex tasks that have a lot of conditionals involved.