Map of example scripts to Chapter sections

1. Lists and tuples:
  1.1 ./lists.py

2. Iterators
  2.1 ./iterators.py

3. The yield statement
  3.1 ./yield_fibonacci.py
  3.2 ./yield_chaining_generators.py
  3.3 ./yield_psychologist.py

4. Decorators
  4.1 ./decorators_repeat.py
  4.2 ./decorators_repeat_with_metadata.py

5. Context managers - the with statement
  5.1 ./content_manager_as_class.py


