Function pytest_cmdline_parse

src/_pytest/helpconfig.py:123–152

()

@pytest.hookimpl(wrapper=True)
def pytest_cmdline_parse() -> Generator[None, Config, Config]:
    config = yield

    if config.option.debug:
        # --debug | --debug <file.log> was provided.
        path = config.option.debug
        debugfile = open(path, "w", encoding="utf-8")
        debugfile.write(
            "versions pytest-{}, "
            "python-{}\ninvocation_dir={}\ncwd={}\nargs={}\n\n".format(
                pytest.__version__,
                ".".join(map(str, sys.version_info)),
                config.invocation_params.dir,
                os.getcwd(),
                config.invocation_params.args,
            )
        )
        config.trace.root.setwriter(debugfile.write)
        undo_tracing = config.pluginmanager.enable_tracing()
        sys.stderr.write(f"writing pytest debug information to {path}\n")

        def unset_tracing() -> None:
            debugfile.close()
            sys.stderr.write(f"wrote pytest debug information to {debugfile.name}\n")
            config.trace.root.setwriter(None)
            undo_tracing()

        config.add_cleanup(unset_tracing)

    return config


def show_version_verbose(config: Config) -> None: