Dealing with multiple context managers

[nilamo]

What about passing the other functions a file object it can read/write to, instead of having it open it's own files? Something like

with requests.Session() as rest_session:
    with open("log.txt", "a") as log:
        data = rest_session.get_data()
        unrelated = read(log)
        write(data, log)
        if unrelated == "OK":
            rest_session.POST("spam")