# 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