描述符“日期”需要一个“ datetime.datetime”对象，但收到一个“ datetime.date”

Question

Trying to combine date & time and received error:

descriptor 'date' requires a 'datetime.datetime' object but received a 'datetime.date'

from datetime import date, datetime, time, timedelta

instance = Model.objects.get(pk=id)

datetime = datetime.combine(datetime.date(instance.mydate), datetime.time(instance.mytime))

Edit:

mydate and mytime are stored here:

class Model(models.Model):
    mydate = models.DateField(blank=True, null=True)
    mytime = models.TimeField(blank=True, null=True)

Edit 2:

I did have this in place but was looking for a 1 line solution:

mydate = datetime.strptime(str(instance.mydate), '%Y-%m-%d')        
mytime = datetime.strptime(str(instance.mytime), '%H:%M:%S')        
datetime = datetime.combine(datetime.date(mydate), datetime.time(mytime))

Answer 1

The issue is that you are actually trying to call datetime.datetime.date() , you should be calling datetime.date() . I am guessing you need to use datetime.time() instead of datetime.datetime.time() also.

Also, according to documentation , the parameters to datetime.date() are three integers indicating the year, month and day of the date.

You should do -

datetime = datetime.combine(date(instance.mydate.year, instance.mydate.month, instance.mydate.day), time(instance.mytime.hour, instance.mytime.minute, instance.mytime.second))

Give the time, upto the accuracy you want, As an example I gave till second , documentation for that is here .