所有可获得代码的模块
- _pytest._code.code
- _pytest.assertion
- _pytest.cacheprovider
- _pytest.capture
- _pytest.config
- _pytest.doctest
- _pytest.fixtures
- _pytest.freeze_support
- _pytest.hookspec
- _pytest.junitxml
- _pytest.legacypath
- _pytest.logging
- _pytest.main
- _pytest.mark
- _pytest.monkeypatch
- _pytest.nodes
- _pytest.outcomes
- _pytest.pytester
- _pytest.python
- _pytest.python_api
- _pytest.recwarn
- _pytest.reports
- _pytest.runner
- _pytest.stash
- _pytest.terminal
- _pytest.tmpdir
- 内置函数
