小编Nog*_*cas的帖子

我正在尝试使用pretty_print选项打印出xml doc.但这是一个错误

TypeError:tostring()得到一个意外的关键字参数'pretty_print'

我在这里错过了什么吗？

def CreateXML2():
    Date = etree.Element("Date", value=time.strftime(time_format, time.localtime()));
    UserNode = etree.SubElement(Date, "User");
    IDNode = etree.SubElement(UserNode, "ID");
    print(etree.tostring(Date, pretty_print=True));

我正在编写timediff函数来计算2给出日期时间之间的时间(秒)差异

def timediff(time1, time2):
    timeformat = '%d%b%Y:%H:%M:%S'
    #time1="01MAR2016:07:11:53"
    #time2="01MAR2016:16:28:38"

    try:
        date_object1 = datetime.strptime(time1, timeformat)
        date_object2 = datetime.strptime(time2, timeformat)
    except ValueError:
        print "time1 format: " + repr(time1)
        print "time2 format: " + repr(time2)
        raise                      

    return abs((date_object2 - date_object1).seconds)  

似乎没有把"月,日,年"计算在内.如果它处于相同的"月,日,年",它给出正确的计算

>>> t1="01MAR2016:07:11:53"
>>> t2="01MAR2016:16:28:38"
>>> timediff(t1, t2)
33405

但是对于不同的"月,日,年",它给出了错误的答案.这只计算时差~18小时(约为65k秒)

>>> t1="02APR2016:06:43:51"
>>> t2="06APR2016:00:58:03"
>>> timediff(t1, t2)
65652

或24小时不同,它给出0

>>> t1="01MAR2016:07:11:53"
>>> t2="02MAR2016:07:11:53"
>>> timediff(t1, t2)
0

datetime采用我给出的时间格式

>>> t1="01MAR2016:07:11:53"
>>> t2="02MAR2016:07:11:53"
>>> datetime.strptime(t1, timeformat)
datetime.datetime(2016, 3, 1, 7, 11, 53)
>>> datetime.strptime(t2, …