Namespaces in Python: Built-in, Global, Enclosing, and Local

What are the namespaces in Python?
In a program of any complexity, you’ll create hundreds or thousands of names, each pointing to a specific object.
How does Python keep track of all these names so that they don’t interfere with one another?
This video covers Python namespaces, the structures used to organize the symbolic names assigned to objects in a Python program.