Dash by Plotly looks like a great way for a Python developer to create interactive web apps without having to learn Javascript and Front End Web development. Another great project with similar aims and scope is Jupyter Dashboards.
What are the pros and cons of each?
In particular in a multi-user deployment? I also found the Plotly documentation quite unclear on what exactly is Open Source and whether the data gets uploaded to them or if the plotting can be done offline? There are clearly two modes for the underlying Plotly library but what mode does Dash operate in?
Disclaimer: I wrote Dash :)
I'd recommend just trying both of them. Dash takes about 30 minutes to run through the tutorial.
I'd also recommend checking out:
There are some high-level features of Dash (these are covered in the announcement letter in more detail)
callbacks
".Graph
component is interactive, allowing Dash app authors to write applications that respond to hovering, clicking, or selecting points on the graph.I also found the Plotly documentation quite unclear on what exactly is Open Source and whether the data gets uploaded to them or if the plotting can be done offline?
It sounds like this is referring to the plotly.py
graphing library. This is a separate library than Dash. Both libraries use the MIT licensed plotly.js
library for creating charts. plotly.js
doesn't send any data to the plotly server - it's completely client-side.
The plotly.py
library includes methods to send the data to your online plotly account for hosting, sharing, and editing the charts but it's completely opt-in. Again, plotly.py
is a separate library than Dash
. plotly.py
is for interactive graphing, Dash
is for creating interactive applications (which can include charts).
In particular in a multi-user deployment? There are clearly two modes for the underlying Plotly library but what mode does Dash operate in?