Map of example scripts to Chapter sections

1. Subclassing built-in types
  1.1 ./subclassing_builtin_types.py

2. Accessing methods from superclasses
  2.1 ./super_pizza.py

3. Descriptors
  3.1 ./descriptors_revealing_access.py
  3.2 ./descriptors_init_on_access.py
  3.3 ./descriptors_lazy_class_attribute.py

4. Properties
  4.1 ./properties_explicit.py
  4.1 ./properites_decorator.py

5. Class decorators
  5.1 ./class_decorator.py

6. Using the __new__() method to override instance creation process
  6.1 ./new_method_instance_counting.py
  6.2 ./new_method_nonzero.py

7. Metaclasses
  7.1 ./metaclasses.py

8. Hy
  8.1 ./hyllo.hy
  8.2 ./py_hyllo.py
