Using .extend() from voluptuous with good Schema

[typon]

Is it possible to extend schema like in voluptuous? I really miss this feature.

from voluptuous import Schema person = Schema({'name': str}) person_with_age = person.extend({'age': int}) sorted(list(person_with_age.schema.keys())) ['age', 'name']

[Varriount]

How does this work when you try to extend a schema that uses a list as a base?

[kolypto]

Not currently, no: you can only do this manually:

person_schema = {'name': str}
age_schema = {'age': int}

person = Schema(person_schema)
person_with_age = Schema({ **person_schema, **age_schema })  # merged dicts (Python 3.5+)

Same thing with a list: manually update a list.

[kolypto]

I'll consider implementing this in the coming release