class Animal:
    def speak(self):
        print("Animal speaks")

class Dog(Animal):
    def speak(self):
        print("Dog barks")


dog_barks = Dog()
dog_barks.speak()

Dog barks

#  created : 20250111

#  https://www.scientecheasy.com/2022/09/reserved-keywords-in-python.html/

#  python iteration keyword

for count in range(1, 4):
  print("Scientech Easy, Dhanbad")

Scientech Easy, Dhanbad
Scientech Easy, Dhanbad
Scientech Easy, Dhanbad

count = 0
while(count < 3):
    print("The current count is: ", count)
    count = count + 1
print("While loop ended …

def second_largest(nums):
    nums.remove(max(nums))
    return max(nums)

# Test the function
nums = [10, 20, 30, 40, 50]
print("Second largest number:", second_largest(nums))

Second largest number: 40

def separate_even_odd(lst):
    even = []
    odd = []
    for num in lst:
        if num % 2 == 0:
            even.append(num)
        else:
            odd.append(num)
    print("Even Numbers:", even)
    print("Odd Numbers:", odd)

# Example usage
separate_even_odd([1, 2, 3, 4, 5, 6])

Even Numbers: [2, 4, 6]
Odd Numbers: [1, 3, 5]

from collections import Counter

def frequency():
    nums = list(map(int, input("Enter the numbers (separated by spaces): ").split(',')))
    frequency = Counter(nums)
    print("Element frequencies:", frequency)

frequency()

Enter the numbers (separated by spaces):  1,23,4,5,64,4,3,2


Element frequencies: Counter({4: 2, 1: 1, 23: 1, 5 …

def is_list_palindrome(lst):
    start = 0
    end = len(lst) - 1
    while start < end:
        if lst[start] != lst[end]:
            print("The list is not a palindrome.")
            return
        start += 1
        end -= 1
    print("The list is a palindrome.")

# Example usage
is_list_palindrome([1, 2, 3, 2, 1])
is_list_palindrome([1, 2, 3])

The list is …

#  created : 20250113

#  https://www.scientecheasy.com/2022/10/logical-operators-in-python.html/

#  x > y and y > z # Two relational expressions combined by a logical and operator.

#  Types of Logical or Boolean Operators in Python
# and
#  or 
#  not

# Logical AND Operator

x, y = 10, 5
result = (x == 10 and y == 5) 

print(result …

#  created : 20250125

#  https://www.scientecheasy.com/2022/10/if-statement-in-python.html/

def logical():
    x, y, z = 20, 40, 50
    if((y > x) and (y < z)): # True 
         print("y is greater than x but smaller than z") 
    if((x > y) and (y < z)): # False
         print("z is greater than x, y")
    if …

#  created : 20250111

#  https://www.scientecheasy.com/2022/10/loops-in-python.html/

count = 0
while count < 10:
    print('Hello world')
    count += 1
print('Loop finished')

Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Hello world
Loop finished

start, end = 10, 50
for …

#  created : 20250113

#  https://www.scientecheasy.com/2022/10/membership-operators-in-python.html/

#  Membership In operator
# in 
# not in

my_string = 'Every person loves his country in the world.'
print('E' in my_string)
print('country' in my_string)
print('like' in my_string)
print('lo' in my_string)

True
True
False
True

my_list = [2, 4, 6, 8 …