{'Team A': [{'start': '11/Jul/13 1:49 PM', 'end': '11/Nov/13 1:02 PM',
    'issue': 'KEY-12678'}], 'Team B': [{'start': '19/Aug/13 5:05 PM', 'end':
    '08/Nov/13 3:35 PM', 'issue': 'KEY-12679'}, {'start':
    '09/Jul/13 9:15 AM', 'end': '29/Jul/13 9:15 AM', 'issue': 'KEY-12680'}]}
Pythonic way to filter data with overlapping dates