How to let PyCall print out results in a Jupyter Notebook

I noticed that if we ask julia to execute the following code in a Jupyter Notebook:

using PyCall
print('Hello World')

Nothing is shown in the notebook, but if you execute the same code in a regular Julia console from terminal, ‘Hello World’ is been printed. Does anyone know why? And how to let the Notebook version also show the result?

THank you.