Utilities
*********

The functions in this chapter perform various utility tasks, ranging
from helping C code be more portable across platforms, using Python
modules from C, and parsing function arguments and constructing Python
values from C values.

* Operating System Utilities

* System Functions

* Process Control

* Importing Modules

* Data marshalling support

* 语句解释及变量编译

  * 解析参数

    * 字符串和缓存区

    * 数字

    * 其他对象

    * API 函数

  * 创建变量

* String conversion and formatting

* Reflection

* Codec registry and support functions

  * Codec lookup API

  * Registry API for Unicode encoding error handlers
