Werk #19859: printer_supply: skip nameless supplies during discovery

Component

Checks & agents

Title

printer_supply: skip nameless supplies during discovery

Date

Apr 23, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p1	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Service discovery for the printer_supply check crashed with TypeError: 'item' must be a non empty string or ommited entirely, got '' when a printer reported a supply entry without a name.

Nameless supplies are now skipped instead of aborting discovery for the whole device.

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