Invalid output when updating no value key.

[hrehfeld]

Description of your problem

Please provide a minimal, self-contained, and reproducible example.

[options]
Color

import configupdater
updater = configupdater.ConfigUpdater(allow_no_value=True)

updater.read("pacman.conf")

updater['options']['Color'] = 'yes'

with open('pacman.conf2', 'w') as f:
    updater.write(f)

Expected:

[options]
Color=yes

Result:

[options]
Color None yes

Versions and main components

• ConfigUpdater Version: 3.2
• Python Version: 3.13.3
• Operating system: arch
• How did you install ConfigUpdater: (pip)