Simple Python Programs with Examples

The best way to learn Python is by practicing examples. The page contains examples on basic concepts of Python. You are advised to take the references from these examples and try them on your own.

All the programs on this page are tested and should work on all platforms.

Python Basic Programs with Examples for Beginners

Write a Python program to display the current date and time.


import datetime
now = datetime.datetime.now()
print ("Current date and time : ")
print (now.strftime("%Y-%m-%d %H:%M:%S"))

import datetime

now = datetime.datetime.now()

print ("Current date and time : ")

print (now.strftime("%Y-%m-%d %H:%M:%S"))

Write a Python program which accepts the radius of a circle from the user and compute the area.


from math import pi
radius = float(input ("Input the radius of the circle : "))
print ("The area of the circle with radius " + str(radius) + " is: " + str(pi * radius**2))

from math import pi

radius = float(input ("Input the radius of the circle : "))

print ("The area of the circle with radius " + str(radius) + " is: " + str(pi * radius**2))

Write a Python program which accepts the user’s first and last name and print them in reverse order.


firstname = input("Input your First Name : ")
lastname = input("Input your Last Name : ")
print ("Hello  " + lastname + " " + firstname)

firstname = input("Input your First Name : ")

lastname = input("Input your Last Name : ")

print ("Hello " + lastname + " " + firstname)

Write a Python program to accept a filename from the user and print the extension of that file.


filename = input("Input the Filename: ")
f_extns = filename.split(".")
print ("The extension of the file is : " + repr(f_extns[-1]))

filename = input("Input the Filename: ")

f_extns = filename.split(".")

print ("The extension of the file is : " + repr(f_extns[-1]))

Write a Python program to display the examination schedule.


exam_start_date = (12,10,2018)
print( "The examination will start from : %i / %i / %i"%exam_start_date)

exam_start_date = (12,10,2018)

print( "The examination will start from : %i / %i / %i"%exam_start_date)

Write a Python program that accepts an integer (n) and computes the value of n+nn+nnn.


a = int(input("Input an integer : "))
num1 = int( "%s" % a )
num2 = int( "%s%s" % (a,a) )
num3 = int( "%s%s%s" % (a,a,a) )
print (num1+num2+num3)

a = int(input("Input an integer : "))

num1 = int( "%s" % a )

num2 = int( "%s%s" % (a,a) )

num3 = int( "%s%s%s" % (a,a,a) )

print (num1+num2+num3)

Write a Python program to print the calendar of a given month and year.


import calendar
year = int(input("Input the year : "))
month = int(input("Input the month : "))
print(calendar.month(year, month))

import calendar

year = int(input("Input the year : "))

month = int(input("Input the month : "))

print(calendar.month(year, month))

Write a Python program to calculate the sum of three given numbers, if the values are equal then return thrice of their sum.


def sum_thrice(x, y, z):
 
     sum = x + y + z
 
     if x == y == z:
      sum = sum * 3
     return sum
 
print(sum_thrice(1, 2, 3))
print(sum_thrice(3, 3, 3))

def sum_thrice(x, y, z):

sum = x + y + z

if x == y == z:

sum = sum * 3

return sum

print(sum_thrice(1, 2, 3))

print(sum_thrice(3, 3, 3))

Write a Python program to find whether a given number is even or odd.


num = int(input("Enter a number: "))
mod = num % 2
if mod > 0:
    print("This is an odd number.")
else:
    print("This is an even number.")

num = int(input("Enter a number: "))

mod = num % 2

if mod > 0:

print("This is an odd number.")

else:

print("This is an even number.")

Write a Python program to check whether a file exists.


import os.path
open('tech.txt', 'w')
print(os.path.isfile('tech.txt'))

import os.path

open('tech.txt', 'w')

print(os.path.isfile('tech.txt'))

Write a Python program to solve (x + y) * (x + y).


x, y = 5, 4
result = x * x + 2 * x * y + y * y
print("({} + {}) ^ 2) = {}".format(x, y, result))

x, y = 5, 4

result = x * x + 2 * x * y + y * y

print("({} + {}) ^ 2) = {}".format(x, y, result))

Write a Python program to display your details like name, age, address.


def personal_details():
    name, age = "Rohit", 25
    address = "Mumbai, Maharashtra, India"
    print("Name: {}\nAge: {}\nAddress: {}".format(name, age, address))
 
personal_details()

def personal_details():

name, age = "Rohit", 25

address = "Mumbai, Maharashtra, India"

print("Name: {}\nAge: {}\nAddress: {}".format(name, age, address))

personal_details()

Write a Python program to add two objects if both objects are an integer type.


def add_numbers(x, y):
    if not (isinstance(x, int) and isinstance(y, int)):
         raise TypeError("Inputs must be integers")
    return x + y
 
print(add_numbers(30, 20))

def add_numbers(x, y):

if not (isinstance(x, int) and isinstance(y, int)):

raise TypeError("Inputs must be integers")

return x + y

print(add_numbers(30, 20))

Write a Python program to compute the greatest common divisor (GCD).


def gcd(a, b):
    gcd = 1
 
    if a % b == 0:
        return y
 
    for k in range(int(b / 2), 0, -1):
        if a % k == 0 and b % k == 0:
            gcd = k
            break  
    return gcd
 
print(gcd(20, 60))
print(gcd(10, 40))

def gcd(a, b):

gcd = 1

if a % b == 0:

return y

for k in range(int(b / 2), 0, -1):

if a % k == 0 and b % k == 0:

gcd = k

break

return gcd

print(gcd(20, 60))

print(gcd(10, 40))

Write a Python program to get the least common multiple (LCM).


def lcm(a, b):
   if a > b:
       z = a
   else:
       z = b
 
   while(True):
       if((z % a == 0) and (z % b == 0)):
           lcm = z
           break
       z += 1
 
   return lcm
print(lcm(10, 20))
print(lcm(15, 17))

def lcm(a, b):

if a > b:

z = a

else:

z = b

while(True):

if((z % a == 0) and (z % b == 0)):

lcm = z

break

z += 1

return lcm

print(lcm(10, 20))

print(lcm(15, 17))

Write a Python program that will accept the base and height of a triangle and compute the area.


base = int(input("Input the base : "))
height = int(input("Input the height : "))
 
area = base*height/2
 
print("area = ", area)

base = int(input("Input the base : "))

height = int(input("Input the height : "))

area = base*height/2

print("area = ", area)

Write a Python program to concatenate all elements in a list into a string and return it.


def concatenate_list_data(list):
    result= ''
    for element in list:
        result += str(element)
    return result
 
print(concatenate_list_data([2, 10, 22, 21]))

def concatenate_list_data(list):

result= ''

for element in list:

result += str(element)

return result

print(concatenate_list_data([2, 10, 22, 21]))

Write a Python program to test whether a passed letter is a vowel or not.


def is_vowel(char):
    all_vowels = 'aeiou'
    return char in all_vowels
print(is_vowel('e'))
print(is_vowel('z'))

def is_vowel(char):

all_vowels = 'aeiou'

return char in all_vowels

print(is_vowel('e'))

print(is_vowel('z'))

Write a Python to find local IP addresses using Pythons stdlib.


import socket
print([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] 
if not ip.startswith("127.")][:1], [[(s.connect(('8.8.8.8', 53)), 
s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, 
socket.SOCK_DGRAM)]][0][1]]) if l][0][0])

import socket

print([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2]

if not ip.startswith("127.")][:1], [[(s.connect(('8.8.8.8', 53)),

s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET,

socket.SOCK_DGRAM)]][0][1]]) if l][0][0])

Write a python program to sum of the first n positive integers.


num = int(input("Input a number: "))
sum_num = (num * (num + 1)) / 2
print(sum_num)

num = int(input("Input a number: "))

sum_num = (num * (num + 1)) / 2

print(sum_num)

Write a Python program to convert height (in feet and inches) to centimeters.


print("Input your height: ")
h_ft = int(input("Feet: "))
h_inch = int(input("Inches: "))
 
h_inch += h_ft * 12
h_cm = round(h_inch * 2.54, 1)
 
print("Your height is : %d cm." % h_cm)

print("Input your height: ")

h_ft = int(input("Feet: "))

h_inch = int(input("Inches: "))

h_inch += h_ft * 12

h_cm = round(h_inch * 2.54, 1)

print("Your height is : %d cm." % h_cm)

Write a Python program to convert the distance (in feet) to inches, yards, and miles.


d_ft = int(input("Input distance in feet: "))
d_inches = d_ft * 12
d_yards = d_ft / 3.0
d_miles = d_ft / 5280.0
 
print("The distance in inches is %i inches." % d_inches)
print("The distance in yards is %.2f yards." % d_yards)
print("The distance in miles is %.2f miles." % d_miles)

d_ft = int(input("Input distance in feet: "))

d_inches = d_ft * 12

d_yards = d_ft / 3.0

d_miles = d_ft / 5280.0

print("The distance in inches is %i inches." % d_inches)

print("The distance in yards is %.2f yards." % d_yards)

print("The distance in miles is %.2f miles." % d_miles)

Write a Python program Convert all units of time into seconds.


days = int(input("Input days: ")) * 3600 * 24
hours = int(input("Input hours: ")) * 3600
minutes = int(input("Input minutes: ")) * 60
seconds = int(input("Input seconds: "))
 
Totaltime = days + hours + minutes + seconds
 
print("The  amounts of seconds", Totaltime)

days = int(input("Input days: ")) * 3600 * 24

hours = int(input("Input hours: ")) * 3600

minutes = int(input("Input minutes: ")) * 60

seconds = int(input("Input seconds: "))

Totaltime = days + hours + minutes + seconds

print("The amounts of seconds", Totaltime)

Write a Python program to Calculate body mass index.


height = float(input("Input your height in meters: "))
weight = float(input("Input your weight in kilogram: "))
print("Your body mass index is: ", round(weight / (height * height), 2))

height = float(input("Input your height in meters: "))

weight = float(input("Input your weight in kilogram: "))

print("Your body mass index is: ", round(weight / (height * height), 2))

Write a Python program to Calculate the sum of the digits in an integer.


num = int(input("Input a four digit numbers: "))
a  = num //1000
a1 = (num - a*1000)//100
a2 = (num - a*1000 - a1*100)//10
a3 = num - a*1000 - a1*100 - a2*10
print("The sum of digits in the number is", a+a1+a2+a3)

num = int(input("Input a four digit numbers: "))

a = num //1000

a1 = (num - a*1000)//100

a2 = (num - a*1000 - a1*100)//10

a3 = num - a*1000 - a1*100 - a2*10

print("The sum of digits in the number is", a+a1+a2+a3)

Write a Python program to Concatenate N strings.


list_of_numbers = ['one', 'two', 'three']  
numbers = '-'.join(list_of_numbers)
print()
print("All Numbers: "+numbers)
print()

list_of_numbers = ['one', 'two', 'three']

numbers = '-'.join(list_of_numbers)

print()

print("All Numbers: "+numbers)

print()

Write a Python program to Get the ASCII value of a character.


print()
print("c>>",ord('c'))
print("A>>",ord('A'))
print("5>>",ord('5'))
print("#>>",ord('#'))
print()

print()

print("c>>",ord('c'))

print("A>>",ord('A'))

print("5>>",ord('5'))

print("#>>",ord('#'))

print()

Write a Python program to Swap two variables.


a = 50
b = 30
print("\nBefore swap a = %d and b = %d" %(a, b))
a, b = b, a
print("\nAfter swaping a = %d and b = %d" %(a, b))
print()

a = 50

b = 30

print("\nBefore swap a = %d and b = %d" %(a, b))

a, b = b, a

print("\nAfter swaping a = %d and b = %d" %(a, b))

print()

Write a Python program to get the name of the host on which the routine is running.


import socket
host_name = socket.gethostname()
print()
print("Host name:", host_name)
print()

import socket

host_name = socket.gethostname()

print()

print("Host name:", host_name)

print()

Write a Python program to find postive or negative number


num = float(input("Input a number: "))
if num > 0:
   print("It is positive number")
elif num == 0:
   print("It is Zero")
else:
   print("It is a negative number")

num = float(input("Input a number: "))

if num > 0:

print("It is positive number")

elif num == 0:

print("It is Zero")

else:

print("It is a negative number")

Write a Python program to remove the first item from a specified list.


Car = ["AUDI", "FERRARI", "HONDA", "Bentley", "Bugatti"]
print("\nOriginal Car: ",Car)
del Car[0]
print("After removing the first Car: ",Car)
print()

Car = ["AUDI", "FERRARI", "HONDA", "Bentley", "Bugatti"]

print("\nOriginal Car: ",Car)

del Car[0]

print("After removing the first Car: ",Car)

print()

Write a Python program to input a number, if it is not a number generate an error message.


while True:
    try:
        a = int(input("Input a number: "))
        break
    except ValueError:
        print("\nThis is not a number. Try again...")
        print()

while True:

try:

a = int(input("Input a number: "))

break

except ValueError:

print("\nThis is not a number. Try again...")

print()

Write a Python program to filter the positive numbers from a list.


nums = [-10, 10, 15, -56]
print("Original numbers in the list: ",nums)
Pos_nums = list(filter(lambda x: x >0, nums))
print("Positive numbers in the list: ",Pos_nums)

nums = [-10, 10, 15, -56]

print("Original numbers in the list: ",nums)

Pos_nums = list(filter(lambda x: x >0, nums))

print("Positive numbers in the list: ",Pos_nums)

Write a Python program to sum of all counts in a collections.


import collections
num = [1,2,3,4,5,6]
print(sum(collections.Counter(num).values()))

import collections

num = [1,2,3,4,5,6]

print(sum(collections.Counter(num).values()))

Write a Python program to convert true to 1 and false to 0.


x = 'true'
x = int(x == 'true')
print(x)
x = 'xyz'
x = int(x == 'true')
print(x)

x = 'true'

x = int(x == 'true')

print(x)

x = 'xyz'

x = int(x == 'true')

print(x)

Write a Python program to remove and print every third number from a list of numbers until the list becomes empty.


def remove_nums(int_list):
  #list starts with 0 index
  position = 3 - 1 
  idx = 0
  len_list = (len(int_list))
  while len_list>0:
    idx = (position+idx)%len_list
    print(int_list.pop(idx))
    len_list -= 1
nums = [10,20,30,40,50,60]
remove_nums(nums)

def remove_nums(int_list):

#list starts with 0 index

position = 3 - 1

idx = 0

len_list = (len(int_list))

while len_list>0:

idx = (position+idx)%len_list

print(int_list.pop(idx))

len_list -= 1

nums = [10,20,30,40,50,60]

remove_nums(nums)

Write a Python program to create the combinations of 3 digit combo.


numbers = []
for num in range(1000):
  num=str(num).zfill(3)
print(num)
numbers.append(num)

numbers = []

for num in range(1000):

num=str(num).zfill(3)

print(num)

numbers.append(num)

Write a Python program to add two positive integers without using the ‘+’ operator.


def add_without_plus_operator(x, y):
    while y != 0:
        data = x & y
        x = x ^ y
        y = data << 1
    return x
print(add_without_plus_operator(2, 10))
print(add_without_plus_operator(-20, 10))
print(add_without_plus_operator(-10, -20))

def add_without_plus_operator(x, y):

while y != 0:

data = x & y

x = x ^ y

y = data << 1

return x

print(add_without_plus_operator(2, 10))

print(add_without_plus_operator(-20, 10))

print(add_without_plus_operator(-10, -20))

Write a Python program to find the median among three given numbers.


a = input("Input the first number: ")
y = input("Input the second number: ")
z = input("Input the third number: ")
print("Median of the above 3 numbers is: ")
 
if y < a and a < z:
    print(a)
elif z < a and a < y:
    print(a)
 
elif z < y and y < a:
    print(y)
elif a < y and y < z:
    print(y)
 
elif y < z and z < a:
    print(z)    
elif a < z and z < y:
    print(z)

a = input("Input the first number: ")

y = input("Input the second number: ")

z = input("Input the third number: ")

print("Median of the above 3 numbers is: ")

if y < a and a < z:

print(a)

elif z < a and a < y:

print(a)

elif z < y and y < a:

print(y)

elif a < y and y < z:

print(y)

elif y < z and z < a:

print(z)

elif a < z and z < y:

print(z)

Write a Python program to find the number of notes (Sample of notes: 10, 20, 50, 100, 200 and 500 ).


def no_notes(a):
  Q = [500, 200, 100, 50, 20, 10]
  x = 0
  for i in range(6):
    q = Q[i]
    x += int(a / q)
    a = int(a % q)
  if a > 0:
    x = -1
  return x
print(no_notes(500))
print(no_notes(560))

def no_notes(a):

Q = [500, 200, 100, 50, 20, 10]

x = 0

for i in range(6):

q = Q[i]

x += int(a / q)

a = int(a % q)

if a > 0:

x = -1

return x

print(no_notes(500))

print(no_notes(560))

Simple Python Programs with Examples

Python Basic Programs with Examples for Beginners

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Python Basic Programs with Examples for Beginners

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