Update windrose examples to use barpolar

[jonmmease]

Plotly.js 1.41 will be included in the plotly.py 3.3 release next week and it would be nice to have some barpolar documentation examples to reference in the release announcement.

To start with, would anyone have time to port the JavaScript and Python wind rose examples (https://plot.ly/python/wind-rose-charts/) from area to barpolar?

cc @etpinard @jackparmer

[jackparmer]

@Kully or @michaelbabyn Can you please take this (whoever gets to it first)

The old area wind roses essentially shouldn't be in the docs anymore, they're deprecated with barpolar

[Kully]

@Kully or @michaelbabyn Can you please take this (whoever gets to it first)

I got it!

[Kully]

As we don't have Barpolar in master yet, I am just going to replace the Area text but not run the examples.

So I don't have to redo the work a second time, is the spelling going to be go.BarPolar(...) or go.Barpolar(...)?

[jonmmease]

It will be Barpolar, and hopefully I'll have a release candidate published by tomorrow morning. And we'll need to run the examples before publishing right? So that the barpolar trace is displayed rather than area.

Thanks @Kully!

[jonmmease]

Here's the branch with barpolar in it plotly/plotly.py#1202. I'm hitting an issue using barpolar with FigureWidget that I need to work through before we release this but it's in fine shape for the docs.

[jonmmease]

@Kully 3.3.0rc1 with barpolar support has been published to PyPI and anaconda cloud