def _item_by_key_postfix(dictionary, key_prefix):
    for key, value in dictionary.items():
        if key.endswith(key_prefix):
            return value

    return {}
Returns two dataseries that exhibit only those values whose datetimes are in both dataseries.
dataset/ETHPy150Open softlayer/softlayer-python/SoftLayer/testing/xmlrpc.py/_item_by_key_postfix--crossover with--dataset/ETHPy150Open gbeced/pyalgotrade/pyalgotrade/dataseries/aligned.py/datetime_aligned