Objects in Python
We have a design in hand and are ready to turn that design into a working program! Of course, it doesn't usually happen this way. We'll be seeing examples and hints for good software design throughout the book, but our focus is object-oriented programming. So, let's have a look at the Python syntax that allows us to create object-oriented software.
After completing this chapter, we will understand the following:
- Python's type hints
- Creating classes and instantiating objects in Python
- Organizing classes into packages and modules
- How to suggest that people don't clobber an object's data, invalidating the internal state
- Working with third-party packages available from the Python Package Index, PyPI
This chapter will also continue our case study, moving into the design of some of the classes.