A tool to visualize the structure of a python library?

Hello everyone!
I was wondering if there is a tool to visualize the structure of a python library (i.e.: pandas).
I would like to be able to see the classes, the object they can create, the attributes an object have (i.e.: all the attributes of a Dataframe) and all the method I can apply to it.
I know that this information is already available in the manuals but it is hard - at least for me- to have an overview of a library’s “functions” in their entirety. I think such a tool would greatly help people to learn python.

Thanks in advance,
Giacomo

At a terminal, try:

python -m pydoc -b