Generate Altair Charts as Json or HTML in Python.

Export Altair to HTML/Json

You can call .to_json and .to_html on any chart that you've defined to get the json or html out.

days = ['Mon', 'Tues', 'Wed', 'Thurs', 'Fri', 'Sat', 'Sun']

p1 = (alt.Chart(plot_df)
  .mark_line()
  .encode(x='date', y='births', color=alt.Color('wday', sort=days))
  .properties(width=125, height=125)
  .interactive())

print(p1.to_html())
print(p1.to_json())

You can also save the json file to disk if you liked to be served as a file by a server later.

import pathlib

pathlib.Path("chart-schema.json").write_text(p1.to_json())

Demo

Below you'll see an example of the hosted chart.

We're using a little trick to help us host this via the justcharts project. Here's the code that we used:

<script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
<script src="https://cdn.jsdelivr.net/gh/koaning/justcharts/justcharts.js"></script>

<vegachart schema-url="chart-schema.json"></vegachart>

If this sounds interesting, you can learn more about it on the justcharts announcement page.