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Chapter Summary
This chapter took a deeper look at Python’s dynamic typing model—that is, the way that Python keeps track of object types for us automatically, rather than requiring us to code declaration statements in our scripts. Along the way, we learned how variables and objects are associated by references in Python; we also explored the idea of garbage collection, learned how shared references to objects can affect multiple variables, and saw how references impact the notion of equality in Python.
Because there is just one assignment model in Python, and because assignment pops up everywhere in the language, it’s important that you have a handle on the model before moving on. The following quiz should help you review some of this chapter’s ideas. After that, we’ll resume our object tour in the next chapter, with strings.
