Check if Juypter is installed

[robnoflop]

Hey,

I tried using ZenML for the first time. With new tools, I always start with a clean virtual environment. After installing ZenML and running zenml go, I encountered the following error:

The error occurs at this line:

zenml/src/zenml/cli/base.py

Line 478 in 68bcb3b

subprocess.check_call(["jupyter", "notebook"], cwd=zenml_tutorial_path)

After installing jupyter in my venv everthing works fine.

Maybe you could simply add this simple check, as described in this Stack Overflow post: --> https://stackoverflow.com/questions/1051254/check-if-python-package-is-installed

Best,
Robert

[strickvl]

Thanks for opening the issue! You're right we could have a nicer handling of this, esp since you're just following the instructions on our README etc. I'll open a PR to make this clearer.

[strickvl]

Merged the fix for this in. Thanks again @robnoflop for the report!