a=1

def do(x):
    return(x+a)

print(do(1))


class Points(object):
  def __init__(self,x,y):

    self.x=x
    self.y=y

  def print_point(self):

    print('x=',self.x,' y=',self.y)

p2=Points(1,2)

p2.x=2

p2.print_point()

print("*****************")

x=5
while(x!=2):
  print(x)
  x=x-1
  
print("*****************")


class Points(object):
  def __init__(self,x,y):

    self.x=x
    self.y=y

  def print_point(self):

    print('x=',self.x,' y=',self.y)

p1=Points("A","B")
p1.print_point()

print("*****************")

for i,x in enumerate(['A','B','C']):
    print(i+1,x)

A = ((11, 12), [21, 21])

print(A[1])

L = []
print(L.append(['a','b']))

B = ["hard rock", 1, 1.2]
del(B[1])
print(B)

C = (("desco",10))
print(len(C))

D = {"a", "b"}
D.add("c")
print(D)

i=6
print(i<5)

print("a"=="A")

print (True or False)

for x in range(0,3):
    print(x)
    
for Y in ["A", "B", "C"]:
    print(Y + "A")
    
for i, x in enumerate(["A", "B", "C"]):
    print(i,x)

def square(num):
    return num ** 2

print (square(2))

print(lambda num: num * 2)

map_list = [1,2,3,4,5]

print(list(map(square, map_list)))

print(list(map(lambda num: num ** 2, [1,2,3,4,5])))


a = [1,2,3,4]
b = [17,12,11,10]
c = [-1,-4,5,9]

print(list(map(lambda x, y, z: x + y + z, a, b, c)))


print("*******************")

letters_list = [letters for letters in 'Hello world']
print(letters_list)

print("*******************")

numbers_list = [numbers for numbers in list(range(10))]
print(numbers_list)

print("*******************")
print(range(5))

print(list(range(5)))


print("*******************")
my_list = [1,2,3,4,5,6,7]

for item in my_list:
    print(item)
    
print("*******************")

i = 1
while i <= 5:
    print("the value of i is {}".format(i))
    i = i +1

print("*******************")

j = 1
while j < 5:
    print("the value of j is {}".format(j))
    j = j +1
else:
        print("exiting the loop")
        
print("*******************")

print((1 + 2) * (3 + 4))

print(1 + 2 * 3 + 4)

print("*******************")


# Creating a class
class class_name:
    def __init__(self   .optional_parameter_1, optional_parameter_2):
    self.attribute_1 = optional_parameter_1
    self.attribute_2 = optional_parameter_2


    def method_name(self, optional_parameter_1):
    # Code to execute
    return optional_output



# Create an instance of a class
object = class_name(parameter_1, parameter_2)



# Calling an object method
object.method_name(parameter_3)