本参考手册罗列并说明了Python 标准库的各种功能, 以及许多非核心的模组(按不同的操作系统和编译时

的设置而定, 不是每台机上的Python 都能用这些模组.) 本手册同时记载了Python 语言所有的标准数据类

型, 内建函数, 异常类, 这些在参考手册中被忽略了或只是扼要的提过一下.-This library reference manual documents Python’s standard library, as well as many optional library modules

(which may or may not be available, depending on whether the underlying platform supports them and on the

configuration choices made at compile time). It also documents the standard types of the language and its built-in

functions and exceptions, many of which are not or incompletely documented in the Reference Manual.