How can static method access class variable in Python?

Question

This is what my code looks like

class InviteManager():     ALREADY_INVITED_MESSAGE = "You are already on our invite list"     INVITE_MESSAGE = "Thank you! we will be in touch soon"      @staticmethod     @missing_input_not_allowed     def invite(email):         try:             db.session.add(Invite(email))             db.session.commit()         except IntegrityError:             return ALREADY_INVITED_MESSAGE         return INVITE_MESSAGE 

When I run my tests, I see

NameError: global name 'INVITE_MESSAGE' is not defined 

How can I access INVITE_MESSAGE inside @staticmethod?

Answer 1

You can access it as InviteManager.INVITE_MESSAGE, but a cleaner solution is to change the static method to a class method:

@classmethod @missing_input_not_allowed def invite(cls, email):     return cls.INVITE_MESSAGE 

(Or, if your code is really as simple as it looks, you can replace the whole class with a bunch of functions and constants in a module. Modules are namespaces.)