sort dates in python array

Question

How to sort the below array of dates on python 2.4

 timestamps = [\'2011-06-2\', \'2011-08-05\', \'2011-02-04\', \'2010-1-14\', \'2010-12-13\', \'2010-1-12\'         


        

Answer 1

This sort ascending dates in dd/mm/yyyy format

from datetime import datetime 
c_array=['07/12/2017', '30/01/2018', '31/05/2016', '30/09/2016', '30/01/2017', '31/05/2017']

sorted(c_array, key=lambda x: datetime.strptime(x, "%d/%m/%Y").strftime("%Y-%m-%d"))
#out: ['31/05/2016', '30/09/2016', '30/01/2017', '31/05/2017', '07/12/2017', '30/01/2018']

Answer 2

print(sorted(list_of_strings,key=lambda x :(int(x.split('-')[0]),int(x.split('-')[1]),int(x.split('-')[2])))

Answer 3

>>> import time
>>> timestamps = ['2011-06-2', '2011-08-05', '2011-02-04', '2010-1-14', '2010-12-13', '2010-1-12', '2010-2-11', '2010-2-07', '2010-12-02', '2011-11-30', '2010-11-26', '2010-11-23', '2010-11-22', '2010-11-16']
>>> timestamps.sort(key=lambda x: time.mktime(time.strptime(x,"%Y-%m-%d")))
>>> timestamps
['2010-1-12', '2010-1-14', '2010-2-07', '2010-2-11', '2010-11-16', '2010-11-22', '2010-11-23', '2010-11-26', '2010-12-02', '2010-12-13', '2011-02-04', '2011-06-2', '2011-08-05', '2011-11-30']