def resample(srcData):
    times = ['time%s' % i for i in range(1, 11)]
    srcData[times] = srcData[times].apply(pd.to_datetime)
    srcData['start_time'] = srcData['time1'].dt.hour
    srcData['total_time'] = 0
    for i in range(1, 10):
        srcData['time' + str(i)] = (srcData['time' + str((i+1))] - srcData['time' + str(i)]).fillna(0).dt.seconds
    times = ['time%s' % i for i in range(1,10)]
    srcData.drop('time10',1,inplace=True)
    srcData.drop('session_id',1,inplace=True)
    data['total_time'] = data[times].sum(axis=1)