IDLE
此章描述的模块帮助您编写软件。例如， pydoc module takes a module and generates documentation based on the module’s contents. The doctest and unittest modules contains frameworks for writing unit tests that automatically exercise code and verify that the expected output is produced. 2to3 can translate Python 2.x source code into valid Python 3.x code.
pydoc
doctest
unittest
此章描述的模块列表：
typing
Any
collections
collections.abc
contextlib
unittest.mock
side_effect
return_value
lib2to3
test
test.support
test.support.socket_helper
test.support.script_helper
test.support.bytecode_helper
test.support.threading_helper
test.support.os_helper
test.support.import_helper
test.support.warnings_helper
typing — 支持类型提示
键入搜索术语或模块、类、函数名称。