Concrete Objects Layer
**********************

The functions in this chapter are specific to certain Python object
types. Passing them an object of the wrong type is not a good idea; if
you receive an object from a Python program and you are not sure that
it has the right type, you must perform a type check first; for
example, to check that an object is a dictionary, use
"PyDict_Check()".  The chapter is structured like the "family tree" of
Python object types.

警告: While the functions described in this chapter carefully check
  the type of the objects which are passed in, many of them do not
  check for *NULL* being passed instead of a valid object.  Allowing
  *NULL* to be passed in can cause memory access violations and
  immediate termination of the interpreter.


Fundamental Objects
===================

This section describes Python type objects and the singleton object
"None".

* Type Objects

* The "None" Object


Numeric Objects
===============

* Integer Objects

* 布尔对象

* Floating Point Objects

* Complex Number Objects

  * Complex Numbers as C Structures

  * Complex Numbers as Python Objects


Sequence Objects
================

Generic operations on sequence objects were discussed in the previous
chapter; this section deals with the specific kinds of sequence
objects that are intrinsic to the Python language.

* Bytes Objects

* bytearray 对象

  * 键入检查宏

  * Direct API functions

  * Macros

* Unicode Objects and Codecs

  * Unicode Objects

    * Unicode Type

    * Unicode Character Properties

    * Creating and accessing Unicode strings

    * Deprecated Py_UNICODE APIs

    * Locale Encoding

    * File System Encoding

    * wchar_t Support

  * Built-in Codecs

    * Generic Codecs

    * UTF-8 Codecs

    * UTF-32 Codecs

    * UTF-16 Codecs

    * UTF-7 Codecs

    * Unicode-Escape Codecs

    * Raw-Unicode-Escape Codecs

    * Latin-1 Codecs

    * ASCII Codecs

    * Character Map Codecs

    * MBCS codecs for Windows

    * Methods & Slots

  * Methods and Slot Functions

* Tuple Objects

* Struct Sequence Objects

* 列表对象


Container Objects
=================

* 字典对象

* Set Objects


Function Objects
================

* Function Objects

* Instance Method Objects

* 方法对象

* Cell Objects

* 代码对象


Other Objects
=============

* File Objects

* Module Objects

  * Initializing C modules

    * Single-phase initialization

    * Multi-phase initialization

    * Low-level module creation functions

    * Support functions

  * Module lookup

* Iterator Objects

* 描述符对象

* Slice Objects

* Ellipsis Object

* MemoryView objects

* Weak Reference Objects

* Capsules

* 生成器对象

* 协程对象

* DateTime Objects
