12 ds python list in telugu vlr training

In [1]:

#https://www.tutorialspoint.com/python/python_lists.htm List

In [2]:

a=[22,44,55]

In [3]:

a

Out[3]:

[22, 44, 55]

In [5]:

a[0]

Out[5]:

22

In [6]:

type(a)

Out[6]:

list

In [7]:

list1=[1,"ramesh",True,9059868766]

In [8]:

list1

Out[8]:

[1, 'ramesh', True, 9059868766]

In [9]:

list2=["hyd",list1]

In [10]:

list2

Out[10]:

['hyd', [1, 'ramesh', True, 9059868766]]

In [11]:

a=[2,3,4,[3,4,"r"],"t"]

In [12]:

a

Out[12]:

[2, 3, 4, [3, 4, 'r'], 't']

In [14]:

for i in list1:
    print (i)

1
ramesh
True
9059868766

In [16]:

for i in list2:
    print (i)

hyd
[1, 'ramesh', True, 9059868766]

In [17]:

list1[2]

Out[17]:

True

In [18]:

list1[1:2]

Out[18]:

['ramesh']

In [19]:

list

Out[19]:

list

In [20]:

list

Out[20]:

list

In [21]:

list1

Out[21]:

[1, 'ramesh', True, 9059868766]

In [22]:

list1[0:2]

Out[22]:

[1, 'ramesh']

In [23]:

list1[2:4]

Out[23]:

[True, 9059868766]

In [24]:

list1

Out[24]:

[1, 'ramesh', True, 9059868766]

In [25]:

list1[1]="suresh"

In [26]:

list1

Out[26]:

[1, 'suresh', True, 9059868766]

In [27]:

list3=list1

In [28]:

list3

Out[28]:

[1, 'suresh', True, 9059868766]

In [31]:

del list3[5]

---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-31-e74a5e61fdbc> in <module>()
----> 1 del list3[5]

IndexError: list assignment index out of range

In [30]:

list3

Out[30]:

[1, 'suresh', True]

In [32]:

len(list1)

Out[32]:

3

In [33]:

list1

Out[33]:

[1, 'suresh', True]

In [34]:

list4=list1+a

In [35]:

list4

Out[35]:

[1, 'suresh', True, 2, 3, 4, [3, 4, 'r'], 't']

In [36]:

list5=["ramesh"*5]

In [37]:

list5

Out[37]:

['rameshrameshrameshrameshramesh']

In [38]:

2 in list4

Out[38]:

True

In [39]:

5 in list4

Out[39]:

False

In [40]:

list4

Out[40]:

[1, 'suresh', True, 2, 3, 4, [3, 4, 'r'], 't']

In [41]:

list4[-1]

Out[41]:

't'

In [45]:

list4[1:-4]

Out[45]:

['suresh', True, 2]

In [46]:

li1=range(10)

In [47]:

li1

Out[47]:

range(0, 10)

In [49]:

print(list(li1))

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

In [53]:

a=range(1,30)

In [54]:

a

Out[54]:

range(1, 30)

In [55]:

list(a)

Out[55]:

[1,
 2,
 3,
 4,
 5,
 6,
 7,
 8,
 9,
 10,
 11,
 12,
 13,
 14,
 15,
 16,
 17,
 18,
 19,
 20,
 21,
 22,
 23,
 24,
 25,
 26,
 27,
 28,
 29]

In [56]:

a=range(0,100,2)

In [57]:

list(a)

Out[57]:

[0,
 2,
 4,
 6,
 8,
 10,
 12,
 14,
 16,
 18,
 20,
 22,
 24,
 26,
 28,
 30,
 32,
 34,
 36,
 38,
 40,
 42,
 44,
 46,
 48,
 50,
 52,
 54,
 56,
 58,
 60,
 62,
 64,
 66,
 68,
 70,
 72,
 74,
 76,
 78,
 80,
 82,
 84,
 86,
 88,
 90,
 92,
 94,
 96,
 98]

In [58]:

len(a)

Out[58]:

50

In [59]:

a[-1]

Out[59]:

98

In [67]:

a[-1]

Out[67]:

98

In [68]:

a[:-1]

Out[68]:

range(0, 98, 2)

In [69]:

list(a[:-1])

Out[69]:

[0,
 2,
 4,
 6,
 8,
 10,
 12,
 14,
 16,
 18,
 20,
 22,
 24,
 26,
 28,
 30,
 32,
 34,
 36,
 38,
 40,
 42,
 44,
 46,
 48,
 50,
 52,
 54,
 56,
 58,
 60,
 62,
 64,
 66,
 68,
 70,
 72,
 74,
 76,
 78,
 80,
 82,
 84,
 86,
 88,
 90,
 92,
 94,
 96]