Our settings work, but there's a major annoyance: they don't persist between sessions. Shut down the application and start it up again, and you'll see that the settings are back to their defaults. It's not a major problem, but it's a rough edge we shouldn't leave for our users.
Python gives us a variety of ways to persist data in files. We've already experienced CSV, which is designed for tabular data; there are other formats designed with different capabilities in mind.
The following table shows just a few of the options for storing data available in the Python standard library:
|
Library
|
Data type
|
Suitable
|
Benefits
|
Drawbacks
|
| pickle | Binary | Any kind of object | Fast, easy, small files | Not safe, files aren't ... |
