Organizing python code

sample_registration.py

#!/usr/bin/env python
# encoding: utf-8


# Code in your services folder
class StoreInDb():
    def run(data):
        StoreInDb.storeLogic(data)
        data['db_status'] = "User stored in database"

    def storeLogic(data):
        pass


class RegisterNewsletter():
    def run(data):
        RegisterNewsletter.registerLogic(data)
        data['newsletter_status'] = "User registered newsletter"

    def registerLogic(data):
        pass


class SendConfirmation():
    def run(data):
        SendConfirmation.emailingLogic(data)
        data['confirmation_status'] = "User Sent confirmation letter"

    def emailingLogic(data):
        pass

# Code in your controller
data = {'firstName': 'John', 'sirName': 'Doe', 'email': 'john@doe.com'}
StoreInDb.run(data)
RegisterNewsletter.run(data)
print(data)