# 12 Specific Data Types

This chapter describes the functions that deal with specific types of Python objects. It is structured like the ``family tree'' of Python object types.

- 12.1 Fundamental Objects
  - 12.1.1 Type Objects
  - 12.1.2 The None Object
- 12.2 Sequence Objects
  - 12.2.1 String Objects
  - 12.2.2 Tuple Objects
  - 12.2.3 List Objects
- 12.3 Mapping Objects
  - 12.3.1 Dictionary Objects
- 12.4 Numeric Objects
  - 12.4.1 Plain Integer Objects
  - 12.4.2 Long Integer Objects
  - 12.4.3 Floating Point Objects
  - 12.4.4 Complex Number Objects
- 12.5 Other Objects
  - 12.5.1 File Objects
  - 12.5.2 CObjects