In [7]:

    

import random
import numpy


    

In [139]:

    

seq = [random.choice([1, 2, 2, 3, 3, 3]) for _ in xrange(100)]
numpy.histogram(seq, bins=3)


    

    
Out[139]:





(array([21, 34, 45]),
 array([ 1.        ,  1.66666667,  2.33333333,  3.        ]))

In [112]:

    




    

In [140]:

    

import datetime


    

In [161]:

    

datetime.datetime(2013, 10, 1, 0, 0, 0) + datetime.timedelta(30)


    

    
Out[161]:





datetime.datetime(2013, 10, 31, 0, 0)

In [157]:

    

print datetime.datetime.strptime("13-10-01 00:00:59", "%y-%m-%d %H:%M:%S")


    

    




2013-10-01 00:00:59

In [ ]: