Deprecated spacing and border helper functions removed

:::note This guide is accurate as of Flet 0.85.0. Later releases might add new APIs or additional migration paths.

The breaking changes and deprecations index lists the guides created for each release. :::

Summary

Flet 0.85.0 removed deprecated module-level helper functions from ft.margin, ft.padding, ft.border, and ft.border_radius. Replace module-level helper calls with class methods:

Removed helper	Replacement
`margin.all(...)`	`Margin.all(...)`
`margin.symmetric(...)`	`Margin.symmetric(...)`
`margin.only(...)`	`Margin.only(...)`
`padding.all(...)`	`Padding.all(...)`
`padding.symmetric(...)`	`Padding.symmetric(...)`
`padding.only(...)`	`Padding.only(...)`
`border.all(...)`	`Border.all(...)`
`border.symmetric(...)`	`Border.symmetric(...)`
`border.only(...)`	`Border.only(...)`
`border_radius.all(...)`	`BorderRadius.all(...)`
`border_radius.horizontal(...)`	`BorderRadius.horizontal(...)`
`border_radius.vertical(...)`	`BorderRadius.vertical(...)`
`border_radius.only(...)`	`BorderRadius.only(...)`

Background

The helper functions were replaced by class methods to keep the public API consistent with the concrete value types they create. For example, Padding.all(...) now clearly returns a [Padding][flet.Padding] value, and BorderRadius.only(...) returns a [BorderRadius][flet.BorderRadius] value.

Migration guide

Code before migration:

python

import flet as ft

card = ft.Container(
    padding=ft.padding.all(12),
    border=ft.border.all(1, ft.Colors.OUTLINE),
    border_radius=ft.border_radius.all(8),
)

Code after migration:

python

import flet as ft

card = ft.Container(
    padding=ft.Padding.all(12),
    border=ft.Border.all(1, ft.Colors.OUTLINE),
    border_radius=ft.BorderRadius.all(8),
)

Timeline

Removed in: 0.85.0

References

API documentation: [Border][flet.Border], [BorderRadius][flet.BorderRadius], [Padding][flet.Padding]
Issues and PRs: #6425
Release notes: Flet 0.85.0