In [2]:

    

2+5


    

    
Out[2]:





7

In [3]:

    

a = 2+5


    

In [4]:

    

print(a)


    

    




7

In [5]:

    

b = 3


    

In [6]:

    

c = a + b


    

In [7]:

    

print(c)


    

    




10

In [8]:

    

type(c)


    

    
Out[8]:





int

In [9]:

    

10/2


    

    
Out[9]:





5

In [10]:

    

"Hrant"


    

    
Out[10]:





'Hrant'

In [11]:

    

name = "Hrant"


    

In [12]:

    

print(name)


    

    




Hrant

In [14]:

    

surname= 'Davtyan'


    

In [15]:

    

type(name)


    

    
Out[15]:





str

In [16]:

    

name + surname


    

    
Out[16]:





'HrantDavtyan'

In [19]:

    

name + " " + surname


    

    
Out[19]:





'Hrant Davtyan'

In [23]:

    

surname - name


    

    




-------------------------------------------------------
TypeError             Traceback (most recent call last)
<ipython-input-23-d42d4f2b3b46> in <module>()
----> 1 surname - name

TypeError: unsupported operand type(s) for -: 'str' and 'str'

In [24]:

    

name*surname


    

    




-------------------------------------------------------
TypeError             Traceback (most recent call last)
<ipython-input-24-8e6e0e45a20d> in <module>()
----> 1 name*surname

TypeError: can't multiply sequence by non-int of type 'str'

In [25]:

    

name*5


    

    
Out[25]:





'HrantHrantHrantHrantHrant'

In [26]:

    

10/3


    

    
Out[26]:





3

In [27]:

    

5/2


    

    
Out[27]:





2

In [28]:

    

5//2


    

    
Out[28]:





2

In [29]:

    

5.0/2


    

    
Out[29]:





2.5

In [30]:

    

print(a)


    

    




7

In [31]:

    

type(a)


    

    
Out[31]:





int

In [32]:

    

float(a)


    

    
Out[32]:





7.0

In [33]:

    

type(name)


    

    
Out[33]:





str

In [34]:

    

a_text = str(a)


    

In [35]:

    

type(a_text)


    

    
Out[35]:





str

In [36]:

    

print(a_text)


    

    




7

In [38]:

    

len(name)


    

    
Out[38]:





5

In [39]:

    

len(name) + len(surname)


    

    
Out[39]:





12

In [40]:

    

print a


    

    




7

In [41]:

    

instructor = ["Hrant",surname,6]


    

In [43]:

    

print(instructor)


    

    




['Hrant', 'Davtyan', 6]

In [44]:

    

len(instructor)


    

    
Out[44]:





3

In [45]:

    

type(instructor)


    

    
Out[45]:





list

In [46]:

    

instructor[1]


    

    
Out[46]:





'Davtyan'

In [47]:

    

instructor[0]


    

    
Out[47]:





'Hrant'

In [50]:

    

instructor[-2]


    

    
Out[50]:





'Davtyan'

In [51]:

    

number_list = [5,6,13,56,75,8]


    

In [52]:

    

len(number_list)


    

    
Out[52]:





6

In [53]:

    

number_list[-1]


    

    
Out[53]:





8

In [54]:

    

number_list[0]


    

    
Out[54]:





5

In [56]:

    

number_list[0:3]


    

    
Out[56]:





[5, 6, 13]

In [57]:

    

#print(10)


    

In [58]:

    

number_list[2:5]


    

    
Out[58]:





[13, 56, 75]

In [59]:

    

number_list[3:-1]


    

    
Out[59]:





[56, 75]

In [60]:

    

number_list[3:]


    

    
Out[60]:





[56, 75, 8]

In [61]:

    

number_list[:5]


    

    
Out[61]:





[5, 6, 13, 56, 75]

In [63]:

    

number_list[10]


    

    




-------------------------------------------------------
IndexError            Traceback (most recent call last)
<ipython-input-63-0dea2c35ab9a> in <module>()
----> 1 number_list[10]

IndexError: list index out of range

In [64]:

    

range(5)


    

    
Out[64]:





[0, 1, 2, 3, 4]

In [65]:

    

range(10)


    

    
Out[65]:





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

In [66]:

    

print(instructor)


    

    




['Hrant', 'Davtyan', 6]

In [67]:

    

my_list = ["Jack","James","Jimmy"]


    

In [68]:

    

for i in range(3):
    print(my_list[i])


    

    




Jack
James
Jimmy

In [69]:

    

for i in range(3):
    print(i)


    

    




0
1
2

In [ ]: