The modules described in this chapter help you write software. For example, the
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.
The list of modules described in this chapter is:
typing — Support for type hints
pydoc — Documentation generator and online help systemdoctest — Test interactive Python examples
unittest — Unit testing framework
unittest.mock — mock object library
unittest.mock — getting startedtest — Regression tests package for Python
test.support — Utilities for the Python test suitetest.support.socket_helper — Utilities for socket teststest.support.script_helper — Utilities for the Python execution teststest.support.bytecode_helper — Support tools for testing correct bytecode generation