Python Lab programs

Python programs

All programs are well executed without any error, if in case error comes then write the program number in comment section...

Programs with output👇

1.Write a program to demonstrate different number data types in Python

a = 5 

print(type(a)) 

print(type(5.0)) 

c = 5 + 3j

print(c + 3)

print(isinstance(c, complex)) 

print(0b1101011) 

print(0xFB + 0b10) 

print(0o15) 

print(int(2.3)) 

print(int(-2.8)) 

print(float(5)) 

print(complex('3+5j'))

""" Output

<class 'int'>

<class 'float'>

(8+3j)

True

107

253

13

2

-2

5.0

(3+5j) """

2.Write a program to perform different Arithmetic Operations on numbers in Python.

a=9

b=4 

print('add: ',a+b) 

print('sub: ',a-b) 

print('mul:',a*b) 

print('div: ',a/b) 

print('Floor div: ',a//b) 

print('mod: ',a%b) 

print(divmod(a, b))

"""output 

add:  13

sub:  5

mul: 36

div:  2.25

Floor div:  2

mod:  1

(2, 1)"""

3.Write a program to create, concatenate and print a string and accessing sub-string from a given string.

my_string = "Hello"  

print(my_string)


my_string = """Hello, welcome to

the world of Python""" 

print(my_string) 

str1 = 'Hello' 

str2 ='World!' 

print('str1 + str2 = ', str1 + str2) 
 

print('str1 * 3 =', str1 * 3) 

str = 'programiz' 

print('str = ', str)

print('str[0] = ', str[0])

print('str[-1] = ', str[-1]) 

print('str[1:5] = ', str[1:5]) 

print('str[5:-2] = ', str[5:-2]) 

print('a' in 'program') 

print('at' not in 'battle') 

quote = 'Let it be, let it be, let it be' 

result = quote.find('let it')

print("Substring 'let it':", result) 

result = quote.find('small') 

print("Substring 'small ':", result)

if (quote.find('be,') != -1):     

    print("Contains substring 'be,'") 

else: 

    print("Doesn't contain substring") 

quote = 'Do small things with great love' 

print(quote.find('small things', 10))

print(quote.find('small things', 2)) 

print(quote.find('o small ', 10, -1)) 

print(quote.find('things ', 6, 20)) 

sentence = 'Python programming is fun.'

result = sentence.index('is fun') 

print("Substring 'is fun':", result) 

print(sentence.index('ing', 10)) 

print(sentence.index('g is', 10, -4))

"""output 

Hello

Hello, welcome to

the world of Python

str1 + str2 =  HelloWorld!

str1 * 3 = HelloHelloHello

str =  programiz

str[0] =  p

str[-1] =  z

str[1:5] =  rogr

str[5:-2] =  am

True

False

Substring 'let it': 11

Substring 'small ': -1

Contains substring 'be,'

-1

3

-1

9

Substring 'is fun': 19

15

17 """

4.Write a python script to print the current date in the following format “Sun May 29 02:26:23 IST 2017”

import datetime

now = datetime.datetime.now() 

dt = now.strftime("%a %B %d %H:%M:%S IST %Y") 

print("Current Date in the required format\n",dt)

"""output 

Current Date in the required format

 Thu April 21 20:12:23 IST 2022 """

5. Write a program to create, append, and remove lists in python.

colors = ['red', 'blue', 'green'] 

print (colors[0])

print (colors[2])

print (len(colors))

squares = [1, 4, 9, 16] 

sum=0

for num in squares:

    sum +=num 

print(sum) 

list = ['larry', 'curly', 'moe'] 

if 'curly' in list: 

    print ('There') 

list.append('shemp')

list.insert(0, 'xxx')

list.extend(['yyy', 'zzz']) 

print(list)

print(list.index('curly'))

list.remove('curly') 

list.pop(1) 

print(list)

del list[2]; 

print("After deleting value at index 2 : ")

print(list) 

list = ['a', 'b', 'c', 'd']

print(list[1:-1]) 

list[0:2] = 'z' 

print(list) 

"""output 

red

green

3

30

There

['xxx', 'larry', 'curly', 'moe', 'shemp', 'yyy', 'zzz']

2

['xxx', 'moe', 'shemp', 'yyy', 'zzz']

After deleting value at index 2 :

['xxx', 'moe', 'yyy', 'zzz']

['b', 'c']

['z', 'c', 'd'] """

6.Write a program to demonstrate working with tuples in python.

Tuple1 = ()

print("Initial empty Tuple: ")

print (Tuple1) 

Tuple1 = ('Geeks', 'For') 

print("\nTuple with the use of String:",Tuple1) 

list1 = [1, 2, 4, 5, 6] 

print("\nTuple using List: ") 

print(tuple(list1))

Tuple1 = ('Geeks') 

n = 5 

print("\nTuple with a loop") 

for i in range(int(n)): 

    print(Tuple1)

Tuple1 = tuple('Geeks') 

print("\nTuple with the use of function: ")

print(Tuple1) 
 

Tuple1 = (5, 'Welcome', 7, 'Geeks') 

print("\nTuple with Mixed Datatypes: ")

print(Tuple1) 

Tuple1=(0,1,2,3) 

Tuple2 =('python','geek') 

Tuple3 = (Tuple1,Tuple2) 

print("\nTuple with nested tuples: ")

print(Tuple1)

Tuple1 = ('Geeks',) * 3 

print("\nTuple with repetition: ")

print(Tuple1) 

Tuple1 = (0, 1, 2, 3) 

Tuple2 = ('Geeks', 'For', 'Geeks') 

Tuple3 = Tuple1 + Tuple2

print("Tuple 1: ")

print(Tuple1)

print("\nTuple2: ") 

print(Tuple2) 

print("\nTuples after Concatenaton: ") 

print(Tuple3) 

Tuple1 = tuple('GEEKSFORGEEKS') 
 

print("Removal of First Element: ")

print(Tuple1[1:]) 

print("\nTuple after sequence of Element is reversed: ")

print(Tuple1[::-1])  

print("\nPrinting elements between Range 4-9: ") 

print(Tuple1[4:9]) 
 

x = ("Guru99", 20, "Education") 

(company, emp, profile) = x 

print(company) 

print(emp) 

print(profile) 

#Slicing of Tuple 

x = ("a", "b","c", "d", "e") 

print(x[2:4])

"""output

Initial empty Tuple:

()

Tuple with the use of String: ('Geeks', 'For')

Tuple using List:

(1, 2, 4, 5, 6)

Tuple with a loop

Geeks

Tuple with the use of function:

('G', 'e', 'e', 'k', 's')

Tuple with Mixed Datatypes:

(5, 'Welcome', 7, 'Geeks')

Tuple with nested tuples:

(0, 1, 2, 3)

Tuple with repetition:

('Geeks', 'Geeks', 'Geeks')

Tuple 1:

(0, 1, 2, 3)

Tuple2:

('Geeks', 'For', 'Geeks')

Tuples after Concatenaton:

(0, 1, 2, 3, 'Geeks', 'For', 'Geeks')

Removal of First Element:

('E', 'E', 'K', 'S', 'F', 'O', 'R', 'G', 'E', 'E', 'K', 'S')

Tuple after sequence of Element is reversed:

('S', 'K', 'E', 'E', 'G', 'R', 'O', 'F', 'S', 'K', 'E', 'E', 'G')

Printing elements between Range 4-9:

('S', 'F', 'O', 'R', 'G')

Guru99

20

Education

('c', 'd')

"""

7.Write a program to demonstrate working with dictionaries in python

Dict = {}

print("Empty Dictionary: ")

print(Dict) 

Dict = {1: 'Geeks', 2: 'For', 3: 'Geeks'} 

print("\nDictionary with the use of Integer Keys: ")

print(Dict) 

Dict = {'Name': 'Geeks', 1: [1, 2, 3, 4]} 

print("\nDictionary with the use of Mixed Keys: ")

print(Dict) 

Dict = dict({1: 'Geeks', 2: 'For', 3:'Geeks'}) 

print("\nDictionary with the use of dict(): ")

print(Dict) 

Dict = dict([(1, 'Geeks'), (2, 'For')]) 

print("\nDictionary with each item as a pair: ")

print(Dict) 

Dict = {1: 'Geeks', 2: 'For', 

3:{'A' : 'Welcome', 'B' : 'To', 'C' : 'Geeks'}} 

print(Dict) 

Dict = {}

print("Empty Dictionary: ")

print(Dict) 

Dict[0] = 'Geeks' 

Dict[2] = 'For' 

Dict[3] = 1 

print("\nDictionary after adding 3 elements: ")

print(Dict) 

Dict['Value_set'] = 2, 3, 4 

print("\nDictionary after adding 3 elements: ")

print(Dict) 

Dict[2] = 'Welcome'

print("\nUpdated key value: ")

print(Dict) 

Dict[5] = {'Nested' :{'1' : 'Life', '2' : 'Geeks'}} 

print("\nAdding a Nested Key: ")

print(Dict)

Dict = {1: 'Geeks', 'name': 'For', 3: 'Geeks'} 
 

print("Acessing a element using key:") 

print(Dict['name']) 

print("Acessing a element using key:") 

print(Dict[1]) 

print("Acessing a element using get:") 

print(Dict.get(3)) 

Dict = { 5 : 'Welcome', 6 : 'To', 7 : 'Geeks', 

'A' : {1 : 'Geeks', 2 : 'For', 3 : 'Geeks'}, 

'B' : {1 : 'Geeks', 2 : 'Life'}} 

print("Initial Dictionary: ")

print(Dict) 

del Dict[6] 

print("\nDeleting a specific key: ")

print(Dict) 

del Dict['A'][2] 

print("\nDeleting a key from Nested Dictionary: ")

print(Dict) 

Dict.pop(5) 

print("\nPopping specific element: ")

print(Dict) 

Dict.popitem() 

print("\nPops first element: ")

print(Dict)

Dict.clear() 

print("\nDeleting Entire Dictionary: ")

print(Dict)

"""output

Empty Dictionary:

{}

Dictionary with the use of Integer Keys:

{1: 'Geeks', 2: 'For', 3: 'Geeks'}

Dictionary with the use of Mixed Keys:

{'Name': 'Geeks', 1: [1, 2, 3, 4]}

Dictionary with the use of dict():

{1: 'Geeks', 2: 'For', 3: 'Geeks'}

Dictionary with each item as a pair:

{1: 'Geeks', 2: 'For'}

{1: 'Geeks', 2: 'For', 3: {'A': 'Welcome', 'B': 'To', 'C': 'Geeks'}}

Empty Dictionary:

{}

Dictionary after adding 3 elements:

{0: 'Geeks', 2: 'For', 3: 1}

Dictionary after adding 3 elements:

{0: 'Geeks', 2: 'For', 3: 1, 'Value_set': (2, 3, 4)}

Updated key value:

{0: 'Geeks', 2: 'Welcome', 3: 1, 'Value_set': (2, 3, 4)}

Adding a Nested Key:

{0: 'Geeks', 2: 'Welcome', 3: 1, 'Value_set': (2, 3, 4), 5: {'Nested': {'1': 'Life', '2': 'Geeks'}}}

Acessing a element using key:

For

Acessing a element using key:

Geeks

Acessing a element using get:

Geeks

Initial Dictionary:

{5: 'Welcome', 6: 'To', 7: 'Geeks', 'A': {1: 'Geeks', 2: 'For', 3: 'Geeks'}, 'B': {1: 'Geeks', 2: 'Life'}}

Deleting a specific key:

{5: 'Welcome', 7: 'Geeks', 'A': {1: 'Geeks', 2: 'For', 3: 'Geeks'}, 'B': {1: 'Geeks', 2: 'Life'}}

Deleting a key from Nested Dictionary:

{5: 'Welcome', 7: 'Geeks', 'A': {1: 'Geeks', 3: 'Geeks'}, 'B': {1: 'Geeks', 2: 'Life'}}

Popping specific element:

{7: 'Geeks', 'A': {1: 'Geeks', 3: 'Geeks'}, 'B': {1: 'Geeks', 2: 'Life'}}

Pops first element:

{7: 'Geeks', 'A': {1: 'Geeks', 3: 'Geeks'}}

Deleting Entire Dictionary:

{}

"""

8.Write a python program to find largest of three numbers.

num1 = 10

num2 = 14 

num3 = 12 


if (num1 >= num2) and (num1 >= num3): 

    largest = num1 

elif (num2 >= num1) and (num2 >= num3): 

    largest = num2 

else: 

    largest = num3 

print("The largest number between %d, %d, %d is %d"%(num1,num2,num3, largest))

"""output

The largest number between 10, 14, 12 is 14

"""

9.Write a Python program to convert temperatures to and from Celsius, Fahrenheit.

temp = input("Input the temperature you like to convert? (e.g., 45F, 102C etc.) : ")

degree = int(temp[:-1]) 

i_convention = temp[-1] 

if i_convention.upper() == "C": 

    result = int(round((9 * degree) / 5 + 32)) 

    o_convention = "Fahrenheit" 

elif i_convention.upper() == "F": 

    result = int(round((degree - 32) * 5 / 9)) 

    o_convention = "Celsius" 

else: 

    print("Input proper convention.") 

    quit() 

print("The temperature in", o_convention, "is", result, "degrees.")

"""output

Input the temperature you like to convert? (e.g., 45F, 102C etc.) : 54f

The temperature in Celsius is 12 degrees.

"""

10.Write a Python program to construct the following pattern, using a nested for loop

j=7 

k=7 

p=1 

for i in range(8): 

    print(" * "," " * k," #" * i," " *(7-i)," * ")

    k=k-1

while j > 1:   

    j=j-1 

    print(" * "," " * p," #" * j," "*(7-j)," * ")

    p +=1

"""output

 *                    *

 *          #         *

 *         # #        *

 *        # # #       *

 *       # # # #      *

 *      # # # # #     *

 *     # # # # # #    *

 *    # # # # # # #   *

 *     # # # # # #    *

 *      # # # # #     *

 *       # # # #      *

 *        # # #       *

 *         # #        *

 *          #         *

"""

Python Lab programs

0 Comments

Menu Footer Widget

Python Lab programs

You may like these posts

0 Comments

Follow Us

Menu Footer Widget