In [ ]:

    

#tuples 
#lists 
#dictionaries


    

In [2]:

    

#tuple is a sequence of variables 
#cannot be changed imutable
tup = {"a",1,2,3,4,"shashank"}
tup


    

    
Out[2]:





{1, 2, 3, 4, 'a', 'shashank'}

In [6]:

    

#lists 
lst = ["a",1,2,3]
lst.append(5)
lst


    

    
Out[6]:





['a', 1, 2, 3, 5]

In [7]:

    

for item in lst:
    print(item)


    

    




a
1
2
3
5

In [16]:

    

len(lst)
lst[1]


    

    
Out[16]:





1

In [24]:

    

i=0
while(i <= len(lst)):
    print(lst[i])
    i = i+1


    

    




a
1
2
3
5






    




---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-24-9e87ff50a928> in <module>()
      1 i=0
      2 while(i <= len(lst)):
----> 3     print(lst[i])
      4     i = i+1

IndexError: list index out of range

In [26]:

    

i=0
while(i != len(lst)):
    print(lst[i])
    i = i+1


    

    




a
1
2
3
5

In [27]:

    

list_names = ["shashank","nisha","abhinav","kanksha"]


    

In [31]:

    

"nisha" in list_names


    

    
Out[31]:





True

In [32]:

    

x  = "This is a String"


    

In [33]:

    

x[0]


    

    
Out[33]:





'T'

In [35]:

    

x[0:1]


    

    
Out[35]:





'T'

In [36]:

    

x[0:2]


    

    
Out[36]:





'Th'

In [37]:

    

x[-1]


    

    
Out[37]:





'g'

In [43]:

    

x[-4:-2]


    

    
Out[43]:





'ri'

In [44]:

    

x[3:]


    

    
Out[44]:





's is a String'

In [45]:

    

x = 'Dr. Christopher Brooks'

print(x[4:15])


    

    




Christopher

In [67]:

    

name = "shashank venkata ragireddy"
namelen  = name.split()
print(namelen)
print(len(namelen))
firstname = name.split(' ')[0]
middlename = name.split(' ')[1]
lastname = name.split(' ')[2]
print(firstname)
print(middlename)
print(lastname)


    

    




['shashank', 'venkata', 'ragireddy']
3
shashank
venkata
ragireddy

In [69]:

    

#dictionary
d_movies = {"chrisnolan":"prestige","spielberg":"ET"}
d_movies["chrisnolan"]


    

    
Out[69]:





'prestige'

In [70]:

    

for item in d_movies:
    print(d_movies[item])


    

    




prestige
ET

In [72]:

    

for item in d_movies.values():
    print(item)


    

    




prestige
ET

In [74]:

    

for name,movie in d_movies.items():
    print(name)
    print(movie)


    

    




chrisnolan
prestige
spielberg
ET

In [78]:

    

#broadcasting 
x = {"shashank","venkata","ragireddy"}
x


    

    
Out[78]:





{'ragireddy', 'shashank', 'venkata'}

In [83]:

    

x = firstname , lastname , middlename


    

In [84]:

    

lastname


    

    
Out[84]:





'ragireddy'

In [ ]: