In [43]:

    

till_3 = (1,2,3)


    

In [44]:

    

till_3[0]


    

    
Out[44]:





1

In [45]:

    

till_3[0] = 0


    

    




---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-45-d80ac0bc38a6> in <module>()
----> 1 till_3[0] = 0

TypeError: 'tuple' object does not support item assignment

In [55]:

    

greeting = "Hello %s"
greeting = greeting % ("Chennaipy",)
print greeting


    

    




Hello Chennaipy

In [57]:

    

a=1
b=2
"Num of donuts: %s %s" % (a,b)


    

    
Out[57]:





'Num of donuts: 1 2'

In [51]:

    

name = "Chennaipy"
"Hello " + name + "!"


    

    
Out[51]:





'Hello Chennaipy!'

In [58]:

    

a = (4,)


    

In [59]:

    

a


    

    
Out[59]:





(4,)

In [ ]:

    

till_5_in_reverse = (5,4,3,2,1)


    

In [60]:

    

till_3


    

    
Out[60]:





(1, 2, 3)

In [61]:

    

till_3 + (4,)


    

    
Out[61]:





(1, 2, 3, 4)

In [62]:

    

till_3


    

    
Out[62]:





(1, 2, 3)

In [63]:

    

till_4 = till_3 + (4,)


    

In [64]:

    

till_4


    

    
Out[64]:





(1, 2, 3, 4)

In [65]:

    

only_one = (4)


    

In [66]:

    

only_one


    

    
Out[66]:





4

In [67]:

    

only_one = (4,)


    

In [68]:

    

only_one


    

    
Out[68]:





(4,)

In [69]:

    

(a,b,c) = (1,2,3)


    

In [70]:

    

a


    

    
Out[70]:





1

In [71]:

    

b


    

    
Out[71]:





2

In [72]:

    

c


    

    
Out[72]:





3

In [74]:

    

till_5_in_reverse


    

    
Out[74]:





(5, 4, 3, 2, 1)

In [75]:

    

sorted(till_5_in_reverse)


    

    
Out[75]:





[1, 2, 3, 4, 5]

In [76]:

    

till_5_in_reverse


    

    
Out[76]:





(5, 4, 3, 2, 1)

In [77]:

    

sorted(till_3, reverse=True)


    

    
Out[77]:





[3, 2, 1]

In [78]:

    

letters = []

for i in range(65,91):
    letters.append(chr(i))


    

In [79]:

    

sorted(letters, reverse=True)[:5]


    

    
Out[79]:





['Z', 'Y', 'X', 'W', 'V']

In [80]:

    

nums = range(10)


    

In [81]:

    

nums


    

    
Out[81]:





[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

In [82]:

    

squared_nums = []
for num in nums:
    squared_nums.append(num*num)
    
squared_nums


    

    
Out[82]:





[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

In [84]:

    

[ num*num for num in nums ]


    

    
Out[84]:





[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

In [85]:

    

nums


    

    
Out[85]:





[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

In [86]:

    

even_nums = []
for num in nums:
    if num % 2 == 0:
        even_nums.append(num)

even_nums


    

    
Out[86]:





[0, 2, 4, 6, 8]

In [93]:

    

[ num for num in nums if num % 2 == 0 ]


    

    
Out[93]:





[0, 2, 4, 6, 8]

In [88]:

    

names = ["foo", "bar", "foobar", "baz", "foobaz"]


    

In [89]:

    

[ name.upper() for name in names ]


    

    
Out[89]:





['FOO', 'BAR', 'FOOBAR', 'BAZ', 'FOOBAZ']