Databricks notebook renderer

[nicolaskruchten]

Right now it seems like the only way to render in Databricks notebook is via displayHTML(fig.to_html()).

From Slack:

Is displayHTML a built-in databricks thing? If so, then this could be done as ExternalRenderer renderer, where the side-effect is calling displayHTML. And we could use the presence of that function in the global namespace to automatically enable the renderer.

Basically identical to BrowserRenderer (

plotly.py/packages/python/plotly/plotly/io/_base_renderers.py

Lines 659 to 707 in 168398e

	class BrowserRenderer(ExternalRenderer):
	"""
	Renderer to display interactive figures in an external web browser.
	This renderer will open a new browser window or tab when the
	plotly.io.show function is called on a figure.
	This renderer has no ipython/jupyter dependencies and is a good choice
	for use in environments that do not support the inline display of
	interactive figures.
	mime type: 'text/html'
	"""
	def __init__(
	self,
	config=None,
	auto_play=False,
	using=None,
	new=0,
	autoraise=True,
	post_script=None,
	animation_opts=None,
	):
	self.config = config
	self.auto_play = auto_play
	self.using = using
	self.new = new
	self.autoraise = autoraise
	self.post_script = post_script
	self.animation_opts = animation_opts
	def render(self, fig_dict):
	from plotly.io import to_html
	html = to_html(
	fig_dict,
	config=self.config,
	auto_play=self.auto_play,
	include_plotlyjs=True,
	include_mathjax="cdn",
	post_script=self.post_script,
	full_html=True,
	animation_opts=self.animation_opts,
	default_width="100%",
	default_height="100%",
	validate=False,
	)
	open_html_in_browser(html, self.using, self.new, self.autoraise)

)
but calling displayHTML instead of open_html_in_browser. We should probably extract a shared ExternalHtmlRenderer parent class too. Then add an auto-detect section like the colab one in

plotly.py/packages/python/plotly/plotly/io/_renderers.py

Lines 454 to 460 in 168398e

	if not default_renderer:
	try:
	import google.colab
	default_renderer = "colab"
	except ImportError:
	pass

. But it would check for a NameError on the displayHTML function.

[LePuppy]

Hi, I'm actually displaying graph_objects figures inside Databricks ! I build the figure then use fig.show() and this work perfectly for me.

[nicolaskruchten]

Ah yes, we did this in #1703