Find better name for the Panel classes

[philippjfr]

After discussing the organization of the panel library we decided that the PanelBase class and its subclass are misnamed. This is because we all agreed that the concept of a panel more accurately describes the combination of several components, e.g. a set of widgets with some associated plot.

The class name for the classes that currently inherit from PanelBase should convey the idea that it is a viewable and reactive object that wraps some other object and displays it as part of some larger panel.

Names that we have considered (and so far rejected):

• SubPanel

CC: @jbednar @ceball @jlstevens

[jbednar]

The class name for the classes that currently inherit from PanelBase should convey the idea that it is a viewable and reactive object that wraps some other object and displays it as part of some larger panel

I agree with all this, except that "displays it as part of some larger panel" is not a defining feature; it's something that can be done, but is in no way required. Just wrapping up an mpl figure as something that displays itself is already a meaningful action, whether or not the result ends up in a panel. That's why I don't like SubPanel.

How about Pane?

[jlstevens]

Pane seems to be the best suggestion so far though View and Viewport were also suggested.

[jbednar]

I'm happy with Pane or View, with a slight preference for Pane because it is not as heavily overloaded as View (even though "view" is quite accurate).

I vote for @philippjfr just choosing one of the options, renaming panels.py to e.g. pane.py, and then removing "Panel" from all of the class names. That way I can do:

from panel import pane

pane.Matplotlib(fig)
pane.HTML(df.head(), height=200)

These classes don't always have to be used, but I do finding myself having to import them fairly often, and names like HTMLPanel aren't particularly readable...