In [2]:

    

import datetime


    

In [3]:

    

datetime.datetime.now()


    

    
Out[3]:





datetime.datetime(2017, 2, 2, 18, 45, 32, 547720)

In [4]:

    

datetime.datetime.utcnow()


    

    
Out[4]:





datetime.datetime(2017, 2, 2, 23, 45, 59, 519592)

In [6]:

    

dt = datetime.datetime.now()
v = str(dt)


    

In [7]:

    

datetime.datetime.


    

    
Out[7]:





'2017-02-02 18:46:35.523684'

In [11]:

    

v[:v.rfind('.')]


    

    
Out[11]:





'2017-02-02 18:46:35'

In [19]:

    

dt = datetime.datetime.strptime(v[:v.rfind('.')], '%Y-%m-%d %H:%M:%S')
dt


    

    
Out[19]:





datetime.datetime(2017, 2, 2, 18, 46, 35)

In [18]:

    

dt2 = dt + datetime.timedelta(days=1)
dt2


    

    
Out[18]:





datetime.datetime(2017, 2, 3, 18, 46, 35)

In [20]:

    

datetime.datetime.now() - dt


    

    
Out[20]:





datetime.timedelta(0, 658, 675389)

In [22]:

    

print str(datetime.datetime.now())
datetime.datetime.now().strftime('%Y***************%m-%d %H:%M:%S')


    

    




2017-02-02 19:00:31.354712






    
Out[22]:





'2017***************02-02 19:00:31'

In [24]:

    

datetime.datetime.now() == dt


    

    
Out[24]:





False

In [25]:

    

def fun(name):
    print 'Hello {}'.format(name)


    

In [26]:

    

fun('Zac')


    

    




Hello Zac

In [28]:

    

var = fun
var


    

    
Out[28]:





<function __main__.fun>

In [29]:

    

var('Bob')


    

    




Hello Bob

In [31]:

    

def run_a_func(func):
    func(3)


    

In [32]:

    

run_a_func(var)


    

    




Hello 3

In [33]:

    




    

In [34]:

    

var


    

    
Out[34]:





<function __main__.fun>

In [35]:

    

list([1,2,3])


    

    
Out[35]:





[1, 2, 3]

In [47]:

    

l = [('z', 22), ('b', 15), ('p', 27)]


    

In [39]:

    

l.sort()


    

In [41]:

    

sorted(l, )


    

    
Out[41]:





[1, 2, 2, 6, 8]

In [44]:

    

sorted(l)


    

    
Out[44]:





[('b', 15), ('g', 22), ('p', 27)]

In [ ]:

    

def fun(arg1, arg2):
    do_stuff


    

In [45]:

    

lambda x: x[1]


    

    
Out[45]:





<function __main__.<lambda>>

In [48]:

    

sorted(l, key=lambda x: x[1])


    

    
Out[48]:





[('b', 15), ('z', 22), ('p', 27)]

In [ ]: