Python Datatypes

1+2

​

Out[1]:

3. . .

print("Hello, Welcome ")

​

Hello, Welcome

. . .

a=10

. . .

print (a)

​

10

a = 10

A = 10

if a == A :

    print ("True")

else:

    print("False")

True

. . .

a = 10

A = 10

if a is A :

    print ("True")

else:

    print("False")

True

. . .

a = 10

A = 20

if a == A :

    print("TRue")

else:

    print("False")

False

. . .

10/3

Out[8]:

3.3333333333333335

. . .

10//3

Out[9]:

3

. . .

10%3

Out[10]:

1

. . .

 a=10

a =+ 20

print(a)

20. . .

a+=30. . .

print(a)

50

. . .

x=10

. . .

 x is 10

Out[15]:

True

. . .

pi=3.16

print(type(pi))

<class 'float'>

. . .

str1="Hello"

print(str1)

str1="Hello"

print(str1)

Hello

. . .

str1="Hello"

print(str1[0])

print(str1[-1])

print(str1[::-1])

H

o

olleH

. . .

# Slicing [start : stop : interval]

s = "PythonIsLove"

​

res1 = s[-4:-10:-1]

res2 = s[-4:-10:-2]

res3 = s[-4:-10:-3]

print(res1)

print(res2)

print(res3)

LsInoh

LIo

Ln

. . .

a = '1_111'

print(type(a))

print(a)

print(float(a))

<class 'str'>

1_111

1111.0 

# Strings and its Function

. . .

  

str2=" my name is Kuldip "

str3=' '

str4 = "Singh"

str5=str2+str3+str4

print(str5)

print(str5.capitalize())

print(str5.count('i'))

print(str5.upper())

print(str5.lower())

print(str5.replace('i','*'))

print(len(str2))

print(len(str2.strip()))

str6 = "My Name Is Kuldip Singh"

print(str6.split())

print(type(str6))

print(type(str6.split()))

str7='''My Name is Kuldip.

I am from Odisa.

I live in Karnataka.'''

print(str7)

print(str7.find('My'))

print(str7.find('Kul'))

 my name is Kuldip  Singh

 my name is kuldip  singh

3

 MY NAME IS KULDIP  SINGH

 my name is kuldip  singh

 my name *s Kuld*p  S*ngh

19

17

['My', 'Name', 'Is', 'Kuldip', 'Singh']

<class 'str'>

<class 'list'>

My Name is Kuldip.

I am from Odisa.

I live in Karnataka.

0

11

. . .

# Tuple

. . .

t1=('a','b','c','d')

t2=('e','f','g')

print(type(t1))

print(t1+t2)

print(t1*2)

print(t1[2])

print(t1[1:3])

<class 'tuple'>

('a', 'b', 'c', 'd', 'e', 'f', 'g')

('a', 'b', 'c', 'd', 'a', 'b', 'c', 'd')

c

('b', 'c')

. . .

# List

. . .

l1= [1123,'abc',11.34]

print(type(l1))

print (l1)

l1+=['Python',686,3.14]

print (l1)

#l1.remove[1] -- Error due to Immutable

print(l1)

print(l1[1:4])

l1.append('Thanks')

print(l1)

l2=['Kuldip','How are u ?']

l1.append(l2)

print(l1)

l1.insert(2,'number')

print(l1)

l1.insert(8,'Hey!!')

print(l1)

l1.insert(9,'Hi!!')

print(l1)

l1.insert(12,'Hello!!')

print(l1)

<class 'list'>

[1123, 'abc', 11.34]

[1123, 'abc', 11.34, 'Python', 686, 3.14]

[1123, 'abc', 11.34, 'Python', 686, 3.14]

['abc', 11.34, 'Python']

[1123, 'abc', 11.34, 'Python', 686, 3.14, 'Thanks']

[1123, 'abc', 11.34, 'Python', 686, 3.14, 'Thanks', ['Kuldip', 'How are u ?']]

[1123, 'abc', 'number', 11.34, 'Python', 686, 3.14, 'Thanks', ['Kuldip', 'How are u ?']]

[1123, 'abc', 'number', 11.34, 'Python', 686, 3.14, 'Thanks', 'Hey!!', ['Kuldip', 'How are u ?']]

[1123, 'abc', 'number', 11.34, 'Python', 686, 3.14, 'Thanks', 'Hey!!', 'Hi!!', ['Kuldip', 'How are u ?']]

[1123, 'abc', 'number', 11.34, 'Python', 686, 3.14, 'Thanks', 'Hey!!', 'Hi!!', ['Kuldip', 'How are u ?'], 'Hello!!']

. . .

# Dictionary

. . .

d1 = {}

print(type(d1))

print(d1)

d1={1:'123',2:'Kuldip'}

print(d1)

d1={1:'123',2:'Kuldip',3:1.4}

print(d1)

print(d1[1])

#print(d1[5]) -- Error as no key numbered 5

print(d1[3])

​

print(len(d1))

print(d1.values())

print(d1.keys())

​

<class 'dict'>

{}

{1: '123', 2: 'Kuldip'}

{1: '123', 2: 'Kuldip', 3: 1.4}

123

1.4

3

dict_values(['123', 'Kuldip', 1.4])

dict_keys([1, 2, 3])

. . .

# Sets

. . .

myset1 ={}

print(type(myset1))

print(myset1)

myset1 ={1,2,3,4}

print(myset1)

myset2 ={3,4,5,6}

print(myset2)

print(myset1 & myset2) # intersection

print(myset1 | myset2) # Union

print(myset1 - myset2) # Difference

<class 'dict'>

{}

{1, 2, 3, 4}

{3, 4, 5, 6}

{3, 4}

{1, 2, 3, 4, 5, 6}

{1, 2}

. . .

# Flow control

. . .

Fruits = ['Apple', 'Banana','Grapes','Orange','Guava']

for x in Fruits:

    print(x)

Apple

Banana

Grapes

Orange

Guava

. . .

Fruits = ['Apple', 'Banana','Grapes','Orange','Guava']

if Fruits[2]=='Grapes':

    print ('Available')

else:

    print ("Not available")

​

Available

. . .

a=1

b=1

while a<5:

    while b <= a+1:

        print(b)

        b=b+1

    a=a+1​

1

2

3

4

5

. . .

rows = 5

for num in range(rows):

    for i in range(num):

        print(num, end=" ")  # print number

    # line after each row to display pattern correctly

    print(" ")

1 

2 2 

3 3 3 

4 4 4 4 

. . .

 x

rows = 10

for num in range(1, rows+1):

    for i in range(1, num + 1):

        print(i, end=' ')

    print("")

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

1 2 3 4 5 6

1 2 3 4 5 6 7

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9 10

. . .