how to sort a list based on timestamp value of an object

Question

I have an object called Orders. One of the field in orders is last_modified. the format of this field is 01-JAN-16 02.15.49.086630 PM

Then i have a list of these orders i.e., orders_list. How can I sort this list based on last_modified value?

jpp · Accepted Answer · 2018-10-09 14:23:40Z

4

You can use sorted with a custom key. In this case, you need to convert your string field to datetime:

from datetime import datetime

date_format = '%d-%b-%y %H.%M.%S.%f %p'

res = sorted(orders_list, key=lambda x: datetime.strptime(x.last_modified, date_format))

See Python's strftime directives to see how to construct date_format.

answered Oct 9, 2018 at 14:23

jpp

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