In Jupyter Notebooks, the tooltip feature (shift + tab) works for some kernels (e.g. Python 3) but not others (e.g. Scala, Groovy). Is that expected?

Question

This is my first foray into Jupyter Notebooks. My background is in Java and Scala development in classical IDEs (e.g. IntelliJ, Eclipse).

I have Jupyter Notebook 5.0.0 installed with only two nbextensions: jupyter-js-widgets and beakerx.

My Python 3 notebooks allow me to use the tooltip feature (i.e. if I were to hit the combination shift+tab inside a method's parenthesis, I get expected arguments). However my Scala and Groovy notebooks do not (but I can run the cells just fine).

Is this expected or am I missing something? If this is expected, how do folks author in the notebooks without the ability to discover method arguments like you can in a standard IDE?

Answer 1

First, you have to run your statements (import module and declarations) by SHIFT + ENTER. Then it will show you tooltip after Shift + Tab was pressed.

Answer 2

For the modules that you have imported, must run it first in cell. The key combination for the tooltip SHIFT + Tab will work.