On Jul 14, 7:03 am, phonky <pho...@europe.com> wrote: > > Now, I do not know yet how the account number scheme looks like.
Exactly. The data store knows a lot more than the client (your program) will ever know. The correct answer is to do nothing. Use your data store to generate the IDs for you. The implementations discussed here will not generate unique IDs across invocations, but the data store will persist the sequence for you appropriately. The more correct answer is to abstract away the client to your data store as well. See SQLAlchemy. If you're writing a data store, you're doing it wrong. See PostgreSQL, MySQL, or any other data store out there that are perfectly fine for development and production use. I like to use UUIDs for the IDs. Others like big ints that are a sequence. I've seen people use encrypted big ints, basically random strings that aren't really random. In the end, you only have to change the code that talks to the data store, and the rest of your program only cares about the equality of the id. -- http://mail.python.org/mailman/listinfo/python-list