How can I set session details in conftest.py for yield along with fixture in pytest?

My aim is to create a pretest and post test in conftest.py file which will run after each test case in my test suite. i.e. I was trying to run the methods (login_page() and login()) before all tests and the methods (logout()) after all tests.

I have tried using the below code snippet

@pytest.fixture(scope="session", autouse=True)
def pretest():
    login_page()
    login()
    yield driver
    logout()

I have observed that, while my pre-tests (login_page() & login()) are running perfectly, before all test cases, post-tests (logout()) are not working as intended and was running only after all my selected test cases were executed.

To try a different approach, I had tried using the below code snippet in conftest.py as well

@pytest.fixture(scope="session", autouse=True)
def pretest():
    login_page()
    login()
@pytest.yield_fixture(scope="session", autouse=True)
def posttest():
    logout()

The above method was simply throwing some errors and was not launching the test as such.

I had also tried the below code snippet in conftest.py file

@pytest.yield_fixture(scope="session", autouse=True)
def pretest():
    login_page()
    login()
    yield driver
    logout()