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Posted to notifications@superset.apache.org by "dosubot[bot] (via GitHub)" <gi...@apache.org> on 2026/05/02 02:59:28 UTC
Re: [D] Unable to configure French locale (number formatting) with Helm chart [superset]
GitHub user dosubot[bot] edited a comment on the discussion: Unable to configure French locale (number formatting) with Helm chart
<!-- Answer -->
Your superset_config.py settings (like BABEL_DEFAULT_LOCALE, D3_FORMAT, etc.) only affect backend and some server-rendered content—they do not control how numbers are formatted in the Superset frontend. In Helm chart 0.14.2, there is no built-in way to pass these locale or number formatting settings to the frontend, and extraAppConfig is not supported in this version.
Superset’s frontend uses its own number formatting logic, defaulting to en-US style (comma for thousands, period for decimals) regardless of backend config. To enforce French number formatting in the browser, you need a mechanism to inject frontend config (like extraAppConfig), which is only available in newer chart versions. Upgrading your Helm chart to a version that supports extraAppConfig or similar frontend config is the recommended approach. There are no documented workarounds for 0.14.2 that reliably enforce French number formatting in the UI.
For reference, see how Superset handles frontend number formatting [here](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/packages/superset-ui-core/src/number-format/D3FormatConfig.ts) and [here](https://github.com/apache/superset/blob/829e4d92d91ceae4b43b1ed3b063ffe45377799c/superset-frontend/packages/superset-ui-core/src/number-format/NumberFormatterRegistrySingleton.ts).
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GitHub link: https://github.com/apache/superset/discussions/35093#discussioncomment-14365584
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