13-May-2026 After Class 8 Self Practice-4

first_name = 'Marcio'
last_name = 'Jeovety'
full_name = first_name + ' ' + last_name
print(full_name)

# string concatenation
print('hello' + ' Marcio')
print('hello ' + str(5))

#type conversion
print(type(str(100)))

# escape sequence
weather = '\nIt\'s \"kind of\" sunny'
#
print(weather)


# formatted strings
#name = 'Johnny'
#age = 55
#print(f'hi {name}. You are {age} years old')

# tuple is Immutability

#Built-in functions  + methods

quote = 'to be or not to be'
print("Original quote : " + quote)
print(quote.lower())
print(quote.upper())
print(quote.capitalize())
print(quote.title())

#
print("********************* find, replace, replace \' \' with \'\' (isalnum()) *******************")
print(quote.find('be'))
print(quote.replace('be', 'me'))
print(quote.replace(' ', '').isalnum())
print("********************* find, replace, replace \' \' with \'\' (isalnum()) *******************")
# 

print("Original quote : " + quote)

# Booleans
#name = 'Marcio'
is_cool = False
#
#is_cool = True
#
print(is_cool)
print(bool(-1))

birth_year = input('what year were you born?\n')
#
print('So you are ' + str(2026 - int(birth_year)) + ' years old.')


# Exercise Password checker


username = input('what is your name?\n')
password = input('what is your password?\n')
#
password_length = len(password)
hidden_password = '*' * password_length
#
print(f'Hello {username}, your password {hidden_password} is {password_length} letters long.')

# Lists
#List slicing

amazon_cart = [
    'notebooks',
    'sunglasses',
    'toys',
    'grapes'
]
#
#
amazon_cart[0] = 'macbook'
new_cart = amazon_cart[:]
new_cart[0] = 'windows'
#
print(amazon_cart)
print(new_cart)




# Matrix

matrix = [
    [1,2,3],
    [2,4,6],
    [7,8,9]
]
#
print(matrix[0][1])

# List methods
basket = ['m','a', 'k','b', 'c','z', 'd', 'e']


# adding
new_list = basket.append(100) 
basket.insert(4, 20)
new_list = basket
#
print(basket)
print(new_list)

# removing
basket.pop()
basket.pop(0)

#basket.remove(4)
print("aaaaaaaaaaaa")
print(basket)
print("aaaaaaaaaaaa")
#basket.clear()
print(basket)
print("find position")
basket = ['m','a', 'k','b', 'c','z', 'd', 'e']

# index
print(basket.index('b', 0, 4))
print('d' in basket)
print(basket.count('d'))

print("Original basket ", basket)
################################ Print Sort and Reverse *********************
print("################################ Print Sort and Reverse 1 START STEP 1*********************")
print(basket.sort())
print(basket)
print(basket.reverse())
print(basket)
print("################################ Print Sort and Reverse 1 START STEP 2*********************")
print(basket.sort())

print(basket)
print(basket.reverse())

print(basket)
print("################################ Print Sort and Reverse 1 START STEP 2*********************")
#
#

#
print(basket[::-1])
print(basket)
#
print(list(range(11)))

new_sentence = ' '.join(['hi', 'my', 'name', 'is', 'DoDo'])
print(new_sentence)


# list unpacking
#a,b,c, *other = [1,2,3,4,5,6,7,8,9]


#print(other)


# None is absence of value
weapons = None

print(weapons)


# dictionary

dictionary = {
    'a' : [1,2,3],
    'b' : 'hello',
    'x' : True
}

my_list = [{
    'a' : [1,2,3],
    'b' : 'hello',
    'x' : True
    },
    {
    'a' : [4,5,6],
    'b' : 'hello',
    'x' : True
    }
]
#
print(my_list[0]['a'][2])
print(my_list[1]['a'][1])


user = {
    'basket' : [1,2,3],
    'greet' : 'hello',
    'x' : True,
    'age' : 20
}

user2 = dict(name='Jon Jones')
print(user.get('age', 0))
print(user.get('basket', 0))
print('basket' in user)

print('age' in user.keys())
print(user.items())
print(user.keys())

user2 = user.copy()

print(user.update({'age': 55}))
print(user)
print(user2)