覚えておいた開始ログ，終了ログの対応関係を調べる

gistfile1.txt

for start in start_session_logs:
    term = next(itertools.ifilter(lambda it:it["DateTime"] >= start["DateTime"] and it["IP"] == start["IP"], terminate_session_logs), None)
    if term:
        start["terminate log"] = term
        term["start log"] = start