Python global variable and class functionality

Question

Im creating a simple python program that gives basic functionality of an SMS_Inbox. I have created an SMS_Inbox method.

store = []
message_count = 0
class sm         


        

Answer 1

If the variable you are referring to is message_count, the error is because in Python, you have to specify a variable as global before you can make edits with it.

This should work.

store = []
message_count = 0
class sms_store:
    def add_new_arrival(self,number,time,text):
        global message_count
        store.append(("From: "+number, "Recieved: "+time,"Msg: "+text))
        message_count += 1
    def delete(self,i):
        if i > len(store-1):
            print("Index does not exist")
        else:
            global message_count
            del store[i]
            message_count -= 1

As written above, you'd be better off encapsulating it in the __init__ function instead of declaring it global.