How many classes should I put in one file?

Each Python file is called a module, and the directory structure that manages multiple modules in layers is called a package.

Unlike Java, a Python module can have multiple classes. Because the criteria for making Python modules is "make sense" rather than the number of classes.

It's weird to translate "make sense" into Korean, but you can think of it as focusing on "reusability."

For example, apscheduler

The apscheduler is a package that manages the module about the schedule

In this package, apscheduler.events / apscheduler.job / apscheduler.Each module, such as schedulers, manages the event/job/scheduler.