Python Programs For Beginners - Simple & Interesting¶

# User enters the year
year = int(input("Enter Year: "))

# Leap Year Check
if year % 4 == 0 and year % 100 != 0:
    print(year, "is a Leap Year")
elif year % 100 == 0:
    print(year, "is not a Leap Year")
elif year % 400 ==0:
    print(year, "is a Leap Year")
else:
    print(year, "is not a Leap Year")

# taking user input
ch = input("Enter a character: ")
if((ch>='a' and ch<= 'z') or (ch>='A' and ch<='Z')):
    print(ch, "is an Alphabet")
else:
    print(ch, "is not an Alphabet")

# taking user input
ch = input("Enter a character: ")

if(ch=='A' or ch=='a' or ch=='E' or ch =='e' or ch=='I'
 or ch=='i' or ch=='O' or ch=='o' or ch=='U' or ch=='u'):
    print(ch, "is a Vowel")
else:
    print(ch, "is a Consonant")

# decimal value 1
num1 = '00001'
# decimal value 17
num2 = '10001'

# sum - decimal value 18
# binary value 10010
sum = bin(int(num1,2) + int(num2,2))
print(sum)

# two float values
val1 = 100.99
val2 = 76.15

# Adding the two given numbers
sum = float(val1) + float(val2)

# Displaying the addition result
print("The sum of given numbers is: ", sum)

# Getting the values of two numbers from user
val1 = float(input("Enter first number: "))
val2 = float(input("Enter second number: "))

# Adding the numbers
sum = val1 + val2

# Displaying the result
print("The sum of input numbers is: ", sum)

# taking input from user
number = int(input("Enter any number: "))

# prime number is always greater than 1
if number > 1:
    for i in range(2, number):
        if (number % i) == 0:
            print(number, "is not a prime number")
            break
    else:
        print(number, "is a prime number")

# if the entered number is less than or equal to 1
# then it is not prime number
else:
    print(number, "is not a prime number")

num = int(input("Enter any number: "))
flag = num%2
if flag == 0:
    print(num, "is an even number")
elif flag == 1:
    print(num, "is an odd number")
else:
    print("Error, Invalid input")

def factorial(num):
    """This is a recursive function that calls
   itself to find the factorial of given number"""
    if num == 1:
        return num
    else:
        return num * factorial(num - 1)


# We will find the factorial of this number
num = int(input("Enter a Number: "))

# if input number is negative then return an error message
# elif the input number is 0 then display 1 as output
# else calculate the factorial by calling the user defined function
if num < 0:
    print("Factorial cannot be found for negative numbers")
elif num == 0:
    print("Factorial of 0 is 1")
else:
    print("Factorial of", num, "is: ", factorial(num))

# User inputs the string and it gets stored in variable str
str = input("Enter a string: ")

# counter variable to count the character in a string
counter = 0
for s in str:
      counter = counter+1
print("Length of the input string is:", counter)