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License: BSD 3-Clause "New" or "Revised" License

Python 100.00%

sphinxext-altair's Introduction

sphinxext-altair

sphinxext-altair provides the directive altair-plot to insert live-rendered Altair plots within your Sphinx documentation:

    .. altair-plot::
        import altair as alt
        from vega_datasets import data


        cars = data.cars()

        alt.Chart(cars).mark_point().encode(
            x='Horsepower',
            y='Miles_per_Gallon',
            color='Origin',
            shape='Origin'
        )

You can enable the extension by adding it to your conf.py:

extensions = [
    ...
    "sphinxext_altair.altairplot",
    ...
]

You can find all available options in the docstring of sphinxext_altair/altairplot.py. For more examples on how to use this extension, see the test Sphinx documentation in tests/roots/test-altairplot or the official Altair documentation.

You can install the extension with:

pip install sphinxext-altair

Contributing

It's recommended to use a virtual environment for development:

python -m venv .venv
# Install the project in editable mode including development dependencies
pip install -e '.[dev]'

sphinxext-altair uses black for code formatting, mypy for static type checking, ruff for various linting rules, and pytest for testing. All these tools can be executed by running:

hatch run test

As part of those tests, a Sphinx documentation is built at tests/roots/test-altairplot. You can manually build this documentation and view it which is very useful during development of a new feature. For example, if you want to add a new option to the altair-plot directive, you can add another example in the file tests/roots/test-altairplot/index.rst and then build and view the documentation by running:

hatch run build-test-docs
hatch run serve-test-docs

The test documentation can now be viewed at http://localhost:8000.

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binste jtilly

sphinxext-altair's Issues

Embed options are lost

I include several altair plots in a Sphinx project, and I wish to set the locale to Dutch. In Jupyter I can use the following to set the locale:

import altair as alt
from vega_datasets import data
import requests

resp = requests.get('https://raw.githubusercontent.com/d3/d3-format/master/locale/nl-NL.json')
nl_format = resp.json()
resp = requests.get('https://raw.githubusercontent.com/d3/d3-time-format/master/locale/nl-NL.json')
nl_time_format = resp.json()
alt.renderers.set_embed_options(formatLocale=nl_format, timeFormatLocale=nl_time_format)

source = data.stocks()
plot = alt.Chart(source).mark_line().encode(
    x='date',
    y='price',
    color='symbol',
).interactive()
plot

However, when exporting to json/html or using sphinxext these settings are lost from the embed options:

print(plot.to_html())

<!DOCTYPE html>
<html>
<head>
  <style>
    .error {
        color: red;
    }
  </style>
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm//vega@5"></script>
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm//[email protected]"></script>
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm//vega-embed@6"></script>
</head>
<body>
  <div id="vis"></div>
  <script>
    (function(vegaEmbed) {
      var spec = {"config": {"view": {"continuousWidth": 400, "continuousHeight": 300}}, "data": {"name": "data-96e857a61c6b623bafe23440d582a500"}, "mark": "line", "encoding": {"color": {"type": "nominal", "field": "symbol"}, "x": {"type": "temporal", "field": "date"}, "y": {"type": "quantitative", "field": "price"}}, "selection": {"selector001": {"type": "interval", "bind": "scales", "encodings": ["x", "y"]}}, "$schema": "https://vega.github.io/schema/vega-lite/v4.8.1.json", "datasets": {"data-96e857a61c6b623bafe23440d582a500": [{"symbol": "MSFT", "date": "2000-01-01T00:00:00", "price": 39.81}, {"symbol": "MSFT", "date": "2000-02-01T00:00:00", "price": 36.35}, {"symbol": "MSFT", "date": "2000-03-01T00:00:00", "price": 43.22}, {"symbol": "MSFT", "date": "2000-04-01T00:00:00", "price": 28.37}, {"symbol": "MSFT", "date": "2000-05-01T00:00:00", "price": 25.45}, {"symbol": "MSFT", "date": "2000-06-01T00:00:00", "price": 32.54}, {"symbol": "MSFT", "date": "2000-07-01T00:00:00", "price": 28.4}, {"symbol": "MSFT", "date": "2000-08-01T00:00:00", "price": 28.4}, {"symbol": "MSFT", "date": "2000-09-01T00:00:00", "price": 24.53}, {"symbol": "MSFT", "date": "2000-10-01T00:00:00", "price": 28.02}, {"symbol": "MSFT", "date": "2000-11-01T00:00:00", "price": 23.34}, {"symbol": "MSFT", "date": "2000-12-01T00:00:00", "price": 17.65}, {"symbol": "MSFT", "date": "2001-01-01T00:00:00", "price": 24.84}, {"symbol": "MSFT", "date": "2001-02-01T00:00:00", "price": 24.0}, {"symbol": "MSFT", "date": "2001-03-01T00:00:00", "price": 22.25}, {"symbol": "MSFT", "date": "2001-04-01T00:00:00", "price": 27.56}, {"symbol": "MSFT", "date": "2001-05-01T00:00:00", "price": 28.14}, {"symbol": "MSFT", "date": "2001-06-01T00:00:00", "price": 29.7}, {"symbol": "MSFT", "date": "2001-07-01T00:00:00", "price": 26.93}, {"symbol": "MSFT", "date": "2001-08-01T00:00:00", "price": 23.21}, {"symbol": "MSFT", "date": "2001-09-01T00:00:00", "price": 20.82}, {"symbol": "MSFT", "date": "2001-10-01T00:00:00", "price": 23.65}, {"symbol": "MSFT", "date": "2001-11-01T00:00:00", "price": 26.12}, {"symbol": "MSFT", "date": "2001-12-01T00:00:00", "price": 26.95}, {"symbol": "MSFT", "date": "2002-01-01T00:00:00", "price": 25.92}, {"symbol": "MSFT", "date": "2002-02-01T00:00:00", "price": 23.73}, {"symbol": "MSFT", "date": "2002-03-01T00:00:00", "price": 24.53}, {"symbol": "MSFT", "date": "2002-04-01T00:00:00", "price": 21.26}, {"symbol": "MSFT", "date": "2002-05-01T00:00:00", "price": 20.71}, {"symbol": "MSFT", "date": "2002-06-01T00:00:00", "price": 22.25}, {"symbol": "MSFT", "date": "2002-07-01T00:00:00", "price": 19.52}, {"symbol": "MSFT", "date": "2002-08-01T00:00:00", "price": 19.97}, {"symbol": "MSFT", "date": "2002-09-01T00:00:00", "price": 17.79}, {"symbol": "MSFT", "date": "2002-10-01T00:00:00", "price": 21.75}, {"symbol": "MSFT", "date": "2002-11-01T00:00:00", "price": 23.46}, {"symbol": "MSFT", "date": "2002-12-01T00:00:00", "price": 21.03}, {"symbol": "MSFT", "date": "2003-01-01T00:00:00", "price": 19.31}, {"symbol": "MSFT", "date": "2003-02-01T00:00:00", "price": 19.34}, {"symbol": "MSFT", "date": "2003-03-01T00:00:00", "price": 19.76}, {"symbol": "MSFT", "date": "2003-04-01T00:00:00", "price": 20.87}, {"symbol": "MSFT", "date": "2003-05-01T00:00:00", "price": 20.09}, {"symbol": "MSFT", "date": "2003-06-01T00:00:00", "price": 20.93}, {"symbol": "MSFT", "date": "2003-07-01T00:00:00", "price": 21.56}, {"symbol": "MSFT", "date": "2003-08-01T00:00:00", "price": 21.65}, {"symbol": "MSFT", "date": "2003-09-01T00:00:00", "price": 22.69}, {"symbol": "MSFT", "date": "2003-10-01T00:00:00", "price": 21.45}, {"symbol": "MSFT", "date": "2003-11-01T00:00:00", "price": 21.1}, {"symbol": "MSFT", "date": "2003-12-01T00:00:00", "price": 22.46}, {"symbol": "MSFT", "date": "2004-01-01T00:00:00", "price": 22.69}, {"symbol": "MSFT", "date": "2004-02-01T00:00:00", "price": 21.77}, {"symbol": "MSFT", "date": "2004-03-01T00:00:00", "price": 20.46}, {"symbol": "MSFT", "date": "2004-04-01T00:00:00", "price": 21.45}, {"symbol": "MSFT", "date": "2004-05-01T00:00:00", "price": 21.53}, {"symbol": "MSFT", "date": "2004-06-01T00:00:00", "price": 23.44}, {"symbol": "MSFT", "date": "2004-07-01T00:00:00", "price": 23.38}, {"symbol": "MSFT", "date": "2004-08-01T00:00:00", "price": 22.47}, {"symbol": "MSFT", "date": "2004-09-01T00:00:00", "price": 22.76}, {"symbol": "MSFT", "date": "2004-10-01T00:00:00", "price": 23.02}, {"symbol": "MSFT", "date": "2004-11-01T00:00:00", "price": 24.6}, {"symbol": "MSFT", "date": "2004-12-01T00:00:00", "price": 24.52}, {"symbol": "MSFT", "date": "2005-01-01T00:00:00", "price": 24.11}, {"symbol": "MSFT", "date": "2005-02-01T00:00:00", "price": 23.15}, {"symbol": "MSFT", "date": "2005-03-01T00:00:00", "price": 22.24}, {"symbol": "MSFT", "date": "2005-04-01T00:00:00", "price": 23.28}, {"symbol": "MSFT", "date": "2005-05-01T00:00:00", "price": 23.82}, {"symbol": "MSFT", "date": "2005-06-01T00:00:00", "price": 22.93}, {"symbol": "MSFT", "date": "2005-07-01T00:00:00", "price": 23.64}, {"symbol": "MSFT", "date": "2005-08-01T00:00:00", "price": 25.35}, {"symbol": "MSFT", "date": "2005-09-01T00:00:00", "price": 23.83}, {"symbol": "MSFT", "date": "2005-10-01T00:00:00", "price": 23.8}, {"symbol": "MSFT", "date": "2005-11-01T00:00:00", "price": 25.71}, {"symbol": "MSFT", "date": "2005-12-01T00:00:00", "price": 24.29}, {"symbol": "MSFT", "date": "2006-01-01T00:00:00", "price": 26.14}, {"symbol": "MSFT", "date": "2006-02-01T00:00:00", "price": 25.04}, {"symbol": "MSFT", "date": "2006-03-01T00:00:00", "price": 25.36}, {"symbol": "MSFT", "date": "2006-04-01T00:00:00", "price": 22.5}, {"symbol": "MSFT", "date": "2006-05-01T00:00:00", "price": 21.19}, {"symbol": "MSFT", "date": "2006-06-01T00:00:00", "price": 21.8}, {"symbol": "MSFT", "date": "2006-07-01T00:00:00", "price": 22.51}, {"symbol": "MSFT", "date": "2006-08-01T00:00:00", "price": 24.13}, {"symbol": "MSFT", "date": "2006-09-01T00:00:00", "price": 25.68}, {"symbol": "MSFT", "date": "2006-10-01T00:00:00", "price": 26.96}, {"symbol": "MSFT", "date": "2006-11-01T00:00:00", "price": 27.66}, {"symbol": "MSFT", "date": "2006-12-01T00:00:00", "price": 28.13}, {"symbol": "MSFT", "date": "2007-01-01T00:00:00", "price": 29.07}, {"symbol": "MSFT", "date": "2007-02-01T00:00:00", "price": 26.63}, {"symbol": "MSFT", "date": "2007-03-01T00:00:00", "price": 26.35}, {"symbol": "MSFT", "date": "2007-04-01T00:00:00", "price": 28.3}, {"symbol": "MSFT", "date": "2007-05-01T00:00:00", "price": 29.11}, {"symbol": "MSFT", "date": "2007-06-01T00:00:00", "price": 27.95}, {"symbol": "MSFT", "date": "2007-07-01T00:00:00", "price": 27.5}, {"symbol": "MSFT", "date": "2007-08-01T00:00:00", "price": 27.34}, {"symbol": "MSFT", "date": "2007-09-01T00:00:00", "price": 28.04}, {"symbol": "MSFT", "date": "2007-10-01T00:00:00", "price": 35.03}, {"symbol": "MSFT", "date": "2007-11-01T00:00:00", "price": 32.09}, {"symbol": "MSFT", "date": "2007-12-01T00:00:00", "price": 34.0}, {"symbol": "MSFT", "date": "2008-01-01T00:00:00", "price": 31.13}, {"symbol": "MSFT", "date": "2008-02-01T00:00:00", "price": 26.07}, {"symbol": "MSFT", "date": "2008-03-01T00:00:00", "price": 27.21}, {"symbol": "MSFT", "date": "2008-04-01T00:00:00", "price": 27.34}, {"symbol": "MSFT", "date": "2008-05-01T00:00:00", "price": 27.25}, {"symbol": "MSFT", "date": "2008-06-01T00:00:00", "price": 26.47}, {"symbol": "MSFT", "date": "2008-07-01T00:00:00", "price": 24.75}, {"symbol": "MSFT", "date": "2008-08-01T00:00:00", "price": 26.36}, {"symbol": "MSFT", "date": "2008-09-01T00:00:00", "price": 25.78}, {"symbol": "MSFT", "date": "2008-10-01T00:00:00", "price": 21.57}, {"symbol": "MSFT", "date": "2008-11-01T00:00:00", "price": 19.66}, {"symbol": "MSFT", "date": "2008-12-01T00:00:00", "price": 18.91}, {"symbol": "MSFT", "date": "2009-01-01T00:00:00", "price": 16.63}, {"symbol": "MSFT", "date": "2009-02-01T00:00:00", "price": 15.81}, {"symbol": "MSFT", "date": "2009-03-01T00:00:00", "price": 17.99}, {"symbol": "MSFT", "date": "2009-04-01T00:00:00", "price": 19.84}, {"symbol": "MSFT", "date": "2009-05-01T00:00:00", "price": 20.59}, {"symbol": "MSFT", "date": "2009-06-01T00:00:00", "price": 23.42}, {"symbol": "MSFT", "date": "2009-07-01T00:00:00", "price": 23.18}, {"symbol": "MSFT", "date": "2009-08-01T00:00:00", "price": 24.43}, {"symbol": "MSFT", "date": "2009-09-01T00:00:00", "price": 25.49}, {"symbol": "MSFT", "date": "2009-10-01T00:00:00", "price": 27.48}, {"symbol": "MSFT", "date": "2009-11-01T00:00:00", "price": 29.27}, {"symbol": "MSFT", "date": "2009-12-01T00:00:00", "price": 30.34}, {"symbol": "MSFT", "date": "2010-01-01T00:00:00", "price": 28.05}, {"symbol": "MSFT", "date": "2010-02-01T00:00:00", "price": 28.67}, {"symbol": "MSFT", "date": "2010-03-01T00:00:00", "price": 28.8}, {"symbol": "AMZN", "date": "2000-01-01T00:00:00", "price": 64.56}, {"symbol": "AMZN", "date": "2000-02-01T00:00:00", "price": 68.87}, {"symbol": "AMZN", "date": "2000-03-01T00:00:00", "price": 67.0}, {"symbol": "AMZN", "date": "2000-04-01T00:00:00", "price": 55.19}, {"symbol": "AMZN", "date": "2000-05-01T00:00:00", "price": 48.31}, {"symbol": "AMZN", "date": "2000-06-01T00:00:00", "price": 36.31}, {"symbol": "AMZN", "date": "2000-07-01T00:00:00", "price": 30.12}, {"symbol": "AMZN", "date": "2000-08-01T00:00:00", "price": 41.5}, {"symbol": "AMZN", "date": "2000-09-01T00:00:00", "price": 38.44}, {"symbol": "AMZN", "date": "2000-10-01T00:00:00", "price": 36.62}, {"symbol": "AMZN", "date": "2000-11-01T00:00:00", "price": 24.69}, {"symbol": "AMZN", "date": "2000-12-01T00:00:00", "price": 15.56}, {"symbol": "AMZN", "date": "2001-01-01T00:00:00", "price": 17.31}, {"symbol": "AMZN", "date": "2001-02-01T00:00:00", "price": 10.19}, {"symbol": "AMZN", "date": "2001-03-01T00:00:00", "price": 10.23}, {"symbol": "AMZN", "date": "2001-04-01T00:00:00", "price": 15.78}, {"symbol": "AMZN", "date": "2001-05-01T00:00:00", "price": 16.69}, {"symbol": "AMZN", "date": "2001-06-01T00:00:00", "price": 14.15}, {"symbol": "AMZN", "date": "2001-07-01T00:00:00", "price": 12.49}, {"symbol": "AMZN", "date": "2001-08-01T00:00:00", "price": 8.94}, {"symbol": "AMZN", "date": "2001-09-01T00:00:00", "price": 5.97}, {"symbol": "AMZN", "date": "2001-10-01T00:00:00", "price": 6.98}, {"symbol": "AMZN", "date": "2001-11-01T00:00:00", "price": 11.32}, {"symbol": "AMZN", "date": "2001-12-01T00:00:00", "price": 10.82}, {"symbol": "AMZN", "date": "2002-01-01T00:00:00", "price": 14.19}, {"symbol": "AMZN", "date": "2002-02-01T00:00:00", "price": 14.1}, {"symbol": "AMZN", "date": "2002-03-01T00:00:00", "price": 14.3}, {"symbol": "AMZN", "date": "2002-04-01T00:00:00", "price": 16.69}, {"symbol": "AMZN", "date": "2002-05-01T00:00:00", "price": 18.23}, {"symbol": "AMZN", "date": "2002-06-01T00:00:00", "price": 16.25}, {"symbol": "AMZN", "date": "2002-07-01T00:00:00", "price": 14.45}, {"symbol": "AMZN", "date": "2002-08-01T00:00:00", "price": 14.94}, {"symbol": "AMZN", "date": "2002-09-01T00:00:00", "price": 15.93}, {"symbol": "AMZN", "date": "2002-10-01T00:00:00", "price": 19.36}, {"symbol": "AMZN", "date": "2002-11-01T00:00:00", "price": 23.35}, {"symbol": "AMZN", "date": "2002-12-01T00:00:00", "price": 18.89}, {"symbol": "AMZN", "date": "2003-01-01T00:00:00", "price": 21.85}, {"symbol": "AMZN", "date": "2003-02-01T00:00:00", "price": 22.01}, {"symbol": "AMZN", "date": "2003-03-01T00:00:00", "price": 26.03}, {"symbol": "AMZN", "date": "2003-04-01T00:00:00", "price": 28.69}, {"symbol": "AMZN", "date": "2003-05-01T00:00:00", "price": 35.89}, {"symbol": "AMZN", "date": "2003-06-01T00:00:00", "price": 36.32}, {"symbol": "AMZN", "date": "2003-07-01T00:00:00", "price": 41.64}, {"symbol": "AMZN", "date": "2003-08-01T00:00:00", "price": 46.32}, {"symbol": "AMZN", "date": "2003-09-01T00:00:00", "price": 48.43}, {"symbol": "AMZN", "date": "2003-10-01T00:00:00", "price": 54.43}, {"symbol": "AMZN", "date": "2003-11-01T00:00:00", "price": 53.97}, {"symbol": "AMZN", "date": "2003-12-01T00:00:00", "price": 52.62}, {"symbol": "AMZN", "date": "2004-01-01T00:00:00", "price": 50.4}, {"symbol": "AMZN", "date": "2004-02-01T00:00:00", "price": 43.01}, {"symbol": "AMZN", "date": "2004-03-01T00:00:00", "price": 43.28}, {"symbol": "AMZN", "date": "2004-04-01T00:00:00", "price": 43.6}, {"symbol": "AMZN", "date": "2004-05-01T00:00:00", "price": 48.5}, {"symbol": "AMZN", "date": "2004-06-01T00:00:00", "price": 54.4}, {"symbol": "AMZN", "date": "2004-07-01T00:00:00", "price": 38.92}, {"symbol": "AMZN", "date": "2004-08-01T00:00:00", "price": 38.14}, {"symbol": "AMZN", "date": "2004-09-01T00:00:00", "price": 40.86}, {"symbol": "AMZN", "date": "2004-10-01T00:00:00", "price": 34.13}, {"symbol": "AMZN", "date": "2004-11-01T00:00:00", "price": 39.68}, {"symbol": "AMZN", "date": "2004-12-01T00:00:00", "price": 44.29}, {"symbol": "AMZN", "date": "2005-01-01T00:00:00", "price": 43.22}, {"symbol": "AMZN", "date": "2005-02-01T00:00:00", "price": 35.18}, {"symbol": "AMZN", 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"price": 9.98}, {"symbol": "AAPL", "date": "2001-06-01T00:00:00", "price": 11.62}, {"symbol": "AAPL", "date": "2001-07-01T00:00:00", "price": 9.4}, {"symbol": "AAPL", "date": "2001-08-01T00:00:00", "price": 9.27}, {"symbol": "AAPL", "date": "2001-09-01T00:00:00", "price": 7.76}, {"symbol": "AAPL", "date": "2001-10-01T00:00:00", "price": 8.78}, {"symbol": "AAPL", "date": "2001-11-01T00:00:00", "price": 10.65}, {"symbol": "AAPL", "date": "2001-12-01T00:00:00", "price": 10.95}, {"symbol": "AAPL", "date": "2002-01-01T00:00:00", "price": 12.36}, {"symbol": "AAPL", "date": "2002-02-01T00:00:00", "price": 10.85}, {"symbol": "AAPL", "date": "2002-03-01T00:00:00", "price": 11.84}, {"symbol": "AAPL", "date": "2002-04-01T00:00:00", "price": 12.14}, {"symbol": "AAPL", "date": "2002-05-01T00:00:00", "price": 11.65}, {"symbol": "AAPL", "date": "2002-06-01T00:00:00", "price": 8.86}, {"symbol": "AAPL", "date": "2002-07-01T00:00:00", "price": 7.63}, {"symbol": "AAPL", "date": "2002-08-01T00:00:00", "price": 7.38}, {"symbol": "AAPL", "date": "2002-09-01T00:00:00", "price": 7.25}, {"symbol": "AAPL", "date": "2002-10-01T00:00:00", "price": 8.03}, {"symbol": "AAPL", "date": "2002-11-01T00:00:00", "price": 7.75}, {"symbol": "AAPL", "date": "2002-12-01T00:00:00", "price": 7.16}, {"symbol": "AAPL", "date": "2003-01-01T00:00:00", "price": 7.18}, {"symbol": "AAPL", "date": "2003-02-01T00:00:00", "price": 7.51}, {"symbol": "AAPL", "date": "2003-03-01T00:00:00", "price": 7.07}, {"symbol": "AAPL", "date": "2003-04-01T00:00:00", "price": 7.11}, {"symbol": "AAPL", "date": "2003-05-01T00:00:00", "price": 8.98}, {"symbol": "AAPL", "date": "2003-06-01T00:00:00", "price": 9.53}, {"symbol": "AAPL", "date": "2003-07-01T00:00:00", "price": 10.54}, {"symbol": "AAPL", "date": "2003-08-01T00:00:00", "price": 11.31}, {"symbol": "AAPL", "date": "2003-09-01T00:00:00", "price": 10.36}, {"symbol": "AAPL", "date": "2003-10-01T00:00:00", "price": 11.44}, {"symbol": "AAPL", "date": "2003-11-01T00:00:00", "price": 10.45}, {"symbol": "AAPL", "date": "2003-12-01T00:00:00", "price": 10.69}, {"symbol": "AAPL", "date": "2004-01-01T00:00:00", "price": 11.28}, {"symbol": "AAPL", "date": "2004-02-01T00:00:00", "price": 11.96}, {"symbol": "AAPL", "date": "2004-03-01T00:00:00", "price": 13.52}, {"symbol": "AAPL", "date": "2004-04-01T00:00:00", "price": 12.89}, {"symbol": "AAPL", "date": "2004-05-01T00:00:00", "price": 14.03}, {"symbol": "AAPL", "date": "2004-06-01T00:00:00", "price": 16.27}, {"symbol": "AAPL", "date": "2004-07-01T00:00:00", "price": 16.17}, {"symbol": "AAPL", "date": "2004-08-01T00:00:00", "price": 17.25}, {"symbol": "AAPL", "date": "2004-09-01T00:00:00", "price": 19.38}, {"symbol": "AAPL", "date": "2004-10-01T00:00:00", "price": 26.2}, {"symbol": "AAPL", "date": "2004-11-01T00:00:00", "price": 33.53}, {"symbol": "AAPL", "date": "2004-12-01T00:00:00", "price": 32.2}, {"symbol": "AAPL", "date": "2005-01-01T00:00:00", "price": 38.45}, {"symbol": "AAPL", "date": "2005-02-01T00:00:00", "price": 44.86}, {"symbol": "AAPL", "date": "2005-03-01T00:00:00", "price": 41.67}, {"symbol": "AAPL", "date": "2005-04-01T00:00:00", "price": 36.06}, {"symbol": "AAPL", "date": "2005-05-01T00:00:00", "price": 39.76}, {"symbol": "AAPL", "date": "2005-06-01T00:00:00", "price": 36.81}, {"symbol": "AAPL", "date": "2005-07-01T00:00:00", "price": 42.65}, {"symbol": "AAPL", "date": "2005-08-01T00:00:00", "price": 46.89}, {"symbol": "AAPL", "date": "2005-09-01T00:00:00", "price": 53.61}, {"symbol": "AAPL", "date": "2005-10-01T00:00:00", "price": 57.59}, {"symbol": "AAPL", "date": "2005-11-01T00:00:00", "price": 67.82}, {"symbol": "AAPL", "date": "2005-12-01T00:00:00", "price": 71.89}, {"symbol": "AAPL", "date": "2006-01-01T00:00:00", "price": 75.51}, {"symbol": "AAPL", "date": "2006-02-01T00:00:00", "price": 68.49}, {"symbol": "AAPL", "date": "2006-03-01T00:00:00", "price": 62.72}, {"symbol": "AAPL", "date": "2006-04-01T00:00:00", "price": 70.39}, {"symbol": "AAPL", "date": "2006-05-01T00:00:00", "price": 59.77}, {"symbol": "AAPL", "date": "2006-06-01T00:00:00", "price": 57.27}, {"symbol": "AAPL", "date": "2006-07-01T00:00:00", "price": 67.96}, {"symbol": "AAPL", "date": "2006-08-01T00:00:00", "price": 67.85}, {"symbol": "AAPL", "date": "2006-09-01T00:00:00", "price": 76.98}, {"symbol": "AAPL", "date": "2006-10-01T00:00:00", "price": 81.08}, {"symbol": "AAPL", "date": "2006-11-01T00:00:00", "price": 91.66}, {"symbol": "AAPL", "date": "2006-12-01T00:00:00", "price": 84.84}, {"symbol": "AAPL", "date": "2007-01-01T00:00:00", "price": 85.73}, {"symbol": "AAPL", "date": "2007-02-01T00:00:00", "price": 84.61}, {"symbol": "AAPL", "date": "2007-03-01T00:00:00", "price": 92.91}, {"symbol": "AAPL", "date": "2007-04-01T00:00:00", "price": 99.8}, {"symbol": "AAPL", "date": "2007-05-01T00:00:00", "price": 121.19}, {"symbol": "AAPL", "date": "2007-06-01T00:00:00", "price": 122.04}, {"symbol": "AAPL", "date": "2007-07-01T00:00:00", "price": 131.76}, {"symbol": "AAPL", "date": "2007-08-01T00:00:00", "price": 138.48}, {"symbol": "AAPL", "date": "2007-09-01T00:00:00", "price": 153.47}, {"symbol": "AAPL", "date": "2007-10-01T00:00:00", "price": 189.95}, {"symbol": "AAPL", "date": "2007-11-01T00:00:00", "price": 182.22}, {"symbol": "AAPL", "date": "2007-12-01T00:00:00", "price": 198.08}, {"symbol": "AAPL", "date": "2008-01-01T00:00:00", "price": 135.36}, {"symbol": "AAPL", "date": "2008-02-01T00:00:00", "price": 125.02}, {"symbol": "AAPL", "date": "2008-03-01T00:00:00", "price": 143.5}, {"symbol": "AAPL", "date": "2008-04-01T00:00:00", "price": 173.95}, {"symbol": "AAPL", "date": "2008-05-01T00:00:00", "price": 188.75}, {"symbol": "AAPL", "date": "2008-06-01T00:00:00", "price": 167.44}, {"symbol": "AAPL", "date": "2008-07-01T00:00:00", "price": 158.95}, {"symbol": "AAPL", "date": "2008-08-01T00:00:00", "price": 169.53}, {"symbol": "AAPL", "date": "2008-09-01T00:00:00", "price": 113.66}, {"symbol": "AAPL", "date": "2008-10-01T00:00:00", "price": 107.59}, {"symbol": "AAPL", "date": "2008-11-01T00:00:00", "price": 92.67}, {"symbol": "AAPL", "date": "2008-12-01T00:00:00", "price": 85.35}, {"symbol": "AAPL", "date": "2009-01-01T00:00:00", "price": 90.13}, {"symbol": "AAPL", "date": "2009-02-01T00:00:00", "price": 89.31}, {"symbol": "AAPL", "date": "2009-03-01T00:00:00", "price": 105.12}, {"symbol": "AAPL", "date": "2009-04-01T00:00:00", "price": 125.83}, {"symbol": "AAPL", "date": "2009-05-01T00:00:00", "price": 135.81}, {"symbol": "AAPL", "date": "2009-06-01T00:00:00", "price": 142.43}, {"symbol": "AAPL", "date": "2009-07-01T00:00:00", "price": 163.39}, {"symbol": "AAPL", "date": "2009-08-01T00:00:00", "price": 168.21}, {"symbol": "AAPL", "date": "2009-09-01T00:00:00", "price": 185.35}, {"symbol": "AAPL", "date": "2009-10-01T00:00:00", "price": 188.5}, {"symbol": "AAPL", "date": "2009-11-01T00:00:00", "price": 199.91}, {"symbol": "AAPL", "date": "2009-12-01T00:00:00", "price": 210.73}, {"symbol": "AAPL", "date": "2010-01-01T00:00:00", "price": 192.06}, {"symbol": "AAPL", "date": "2010-02-01T00:00:00", "price": 204.62}, {"symbol": "AAPL", "date": "2010-03-01T00:00:00", "price": 223.02}]}};
      var embedOpt = {"mode": "vega-lite"};

      function showError(el, error){
          el.innerHTML = ('<div class="error" style="color:red;">'
                          + '<p>JavaScript Error: ' + error.message + '</p>'
                          + "<p>This usually means there's a typo in your chart specification. "
                          + "See the javascript console for the full traceback.</p>"
                          + '</div>');
          throw error;
      }
      const el = document.getElementById('vis');
      vegaEmbed("#vis", spec, embedOpt)
        .catch(error => showError(el, error));
    })(vegaEmbed);

  </script>
</body>
</html>

The variable embedOpt is missing the configured locale settings.

I can workaround this in the sphinx extension by rewriting the jinja2 template for the plot, at least hard coding the required options, but I would expect these settings to be included automatically.

import altair.sphinxext.altairplot as altsphplt
import jinja2
altsphplt.VGL_TEMPLATE = jinja2.Template(
    """
<div id="{{ div_id }}">
<script>
  // embed when document is loaded, to ensure vega library is available
  // this works on all modern browsers, except IE8 and older
  document.addEventListener("DOMContentLoaded", function(event) {
      var spec = {{ spec }};
      var opt = {
        "mode": "{{ mode }}",
        "renderer": "{{ renderer }}",
        "actions": {{ actions}},
        'formatLocale': {
                      'decimal': ',',
                      'thousands': '.',
                      'grouping': [3],
                      'currency': ['€\xa0', '']
                    },
                    'timeFormatLocale': {
                      'dateTime': '%a %e %B %Y %X',
                      'date': '%d-%m-%Y',
                      'time': '%H:%M:%S',
                      'periods': ['AM', 'PM'],
                      'days': ['zondag',
                        'maandag',
                        'dinsdag',
                        'woensdag',
                        'donderdag',
                        'vrijdag',
                        'zaterdag'],
                      'shortDays': ['zo', 'ma', 'di', 'wo', 'do', 'vr', 'za'],
                      'months': ['januari',
                        'februari',
                        'maart',
                        'april',
                        'mei',
                        'juni',
                        'juli',
                        'augustus',
                        'september',
                        'oktober',
                        'november',
                        'december'],
                      'shortMonths': ['jan',
                        'feb',
                        'mrt',
                        'apr',
                        'mei',
                        'jun',
                        'jul',
                        'aug',
                        'sep',
                        'okt',
                        'nov',
                        'dec']
                    }
        };
      vegaEmbed('#{{ div_id }}', spec, opt).catch(console.err);
  });
</script>
</div>
"""
)

Please follow these steps to make it more efficient to solve your issue:

Since Altair is a Python wrapper around the Vega-Lite visualization grammar, most bugs should be reported directly to Vega-Lite. You can click the Action Button of your Altair chart and "Open in Vega Editor" to create a reproducible Vega-Lite example and see if you get the same error in the Vega Editor.
Search for duplicate issues.
Use the latest version of Altair.
Describe how to reproduce the bug and include the full code and data to reproduce it, ideally using a sample data set from vega_datasets.

Wheel adds unwanted files to site-packages directory

With this package, we're running into the same issue as vega/altair#3057. Installing the wheel adds README.md, LICENSE, pyproject.toml to .env/lib/python3.11/site-packages/.

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