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translation-fstring-interpolation (ODOO058)

Preview (since 0.16.2.9) · Related issues · View source

Derived from the odoo linter.

This rule is unstable and in preview. The --preview flag is required for use.

What it does

Checks for translation calls whose term is an f-string, e.g. _(f"Hello {name}").

Why is this bad?

An f-string interpolates its values before the translation call runs, so the looked-up term contains the runtime values and never matches the exported translation entry. Since Odoo 14.0 the translation functions (_, self.env._) interpolate the values themselves: _("Hello %s", name).

Example

_(f"Hello {name}")

Use instead: 

_("Hello %s", name)