[Tutor] (de)serialization questions

[Lee Harr]

> I have data about zip codes, street and city names (and perhaps later also of
> street numbers). I made a dictionary of the form {zipcode: (street, city)}

One dictionary with all of the data?

That does not seem like it will work. What happens when
2 addresses have the same zip code?


> Are there forms of object permanence that do not read all data into memory?

How about a file?

You could write your data one record per line, and then
read it in one line at a time also.



You could also use a csv file, or maybe use a database
like sqlite.