ChoicePreference how to store?

[Bastilla123]

Country_Choices = ( (0, 'Deutschland'), (1, 'Niederlande'), (2, 'Frankreich'), )

@global_preferences_registry.register class client_country(ChoicePreference):

name = 'client_country'
choices = Country_Choices
default = '0'
required = False

Now i want to save this preference:

global_preferences['client_country'] = 1

Exception: This is not a string

global_preferences['client_country'] = '1'

Exception: '1' is not a valid choice

How can i save a ChoicePreference?

[felixrindt]

The docstring for ChoiceField says it only works for string values, so you probably can't use integer values in your choices.