[Tutorial Request] Flask Bootstrap + Multiple Bokeh plots

[ethen8181]

Hi, Matt. Not sure if a tutorial request is allowed here. First of all, thanks for creating the Responsive Bar Charts with Bokeh, Flask and Python 3 tutorial, it was really insightful! I was wondering if you're planning to do a flask + flask_bootstrap and multiple bokeh plots tutorial ~ this is something that I would love to see ~~

[mattmakai]

hey @ethen8181, yea of course I love getting requests on here. I'm looking forward to doing more Bokeh tutorials but kinda waiting for the 1.0 release because so much of the API is changing and a lot of the code will have to be rewritten. Even the 0.12.5 to 0.12.6 release deprecated something I wrote in the Flask tutorial.

What would you like to see as far as Flask+Flask_bootstrap posts? Setting up and using it? Good practices for using a bootstrap-type library?

[ethen8181]

Good to know! I am looking for a how to embed multiple Bokeh plots in Flask (using flask_bootstrap) post, not so much on the how to set up flask or use flask_bootstrap.

I had a go at it by modifying your tutorial, and managed to get 1 Bokeh plot on there, but failed to get multiple bokeh plots to work. So thought you might had experience doing related things.

[mattmakai]

hmm I don't have time to check this out myself right now but did you double the line script, div = components(plot) so it was separated into unique variables for the script and div for 2 separate plots? did it just not display or give a certain error message?

[ethen8181]

Yeah, so I tried the following:

# p1 is a single plot, and this renders fine
plot_script, plot_div = components(p1)

# but when I tried to add multiple plots it just gives me a blank screen

# 1. gridplot doesn't work
# https://bokeh.pydata.org/en/latest/docs/user_guide/layout.html#grids-layout-for-plots
grid = gridplot([[p1, p2], [p3, p4]])
plot_script, plot_div = components(grid)

# 2. passing multiple plots to components also didn't work
# https://bokeh.pydata.org/en/latest/docs/user_guide/embed.html#components
plot_script, plot_div = components((p1, p2, p3, p4))

# 3. looping through components and then embedding all individual script and div
plot_divs = []
plot_scripts = []
for p in (p1, p2, p3, p4):
     plot_script, plot_div = components(p)
     plot_divs.append(plot_div)
     plot_scripts.append(plot_script)

The problem is there's no error message, it's just no plots would show up ...

[mattmakai]

unfortunately I looked through my Bokeh projects and haven't had to put multiple plots on a single page so I haven't had this issue. if I have time I'd love to give it a try but for a faster response it's worth dropping a note to the Bokeh devs (https://github.com/bokeh/bokeh) with your attempts and the lack of documentation around what seems like it would be a straightforward bit to code

[ethen8181]

Gotcha, thanks ~~

[martinh85]

Hello,

hmm I don't have time to check this out myself right now but did you double the line script, div = components(plot) so it was separated into unique variables for the script and div for 2 separate plots? did it just not display or give a certain error message?

Hello Matt,
have you found the solution how to handle multiple plots on same page?
https://stackoverflow.com/questions/54734169/bokeh-django-embedding-more-independent-plots-via-components

[mattmakai]

sorry @martinh85, I have not had time to look into it further. Bokeh has evolved a lot since I wrote this post so at some point I'll need to completely refactor what's in it to keep it up to date

[martinh85]

sorry @martinh85, I have not had time to look into it further. Bokeh has evolved a lot since I wrote this post so at some point I'll need to completely refactor what's in it to keep it up to date

thanks anyway Matt