My First App
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# fundatmental DataTypes
print( type(2 + 4))
print( type(2 - 4))
print( type(2 * 4))
print( type(2 / 4)) # 0.5
print(type(9.9 + 1.1)) # 11.0
print( 2 ** 5) #to the power of
print( 9 // 4) #divison but with rounding automatically
print ( 6 % 4) # remainder
# math functions
print(round(3.5))
print (abs(-20))
print ((20 -3 ) + 2 ** 2) #PEMDAS
print(bin(12345))
print(int('0b101', 2))
user_iq = 190
user_age = user_iq/4
print(user_age)
#Constants
PI = 3.14 # never meant to change ..you can but shouldnt
#double unscores dont not otuch them
a,b,c = 1, 2, 3
print(a)
print(b)
print(c)
iq = 100
age = iq/5
print(age)
#augmented assignment operator
some_value = 5
some_value += 2
print(some_value)
#Strings
'hello'
print(type ("Hello there"))
username = "coder"
password = 'coderpass'
long_string = '''
WOW
this
is now
'''
print(long_string)
first_name = 'Avery'
last_name = 'Gaskins'
full_name = first_name +' ' +last_name
print(full_name)
# String concatenation
print('hello' + ' Avery')
print('hello' + ' Avery')
print(type(str(100)))
#Type conversion
a = str(100)
#Escape Sequence
weather = "\t It's \"kind of\" sunny \n\t hope you have a good day"
print(weather)
#fromatted strings
name = 'Johnny'
age = 55
print(f'hi ' + name + '. age: ' + str(age))
print(f'hi {name}. age: {age}')
# [start:stop:stepover]
selfish = '01234567'
print(selfish[0:8:3])
print(selfish[1:])
print(selfish[:5])
print(selfish[::1])
print(selfish[-1]) # Start at the end of the string
print(selfish[::-1]) # list the string backwards
#Immutability - they cannot be changed
#selfish [0] = 8 # cannot resassing within the string
selfish = selfish + '8' # you have to change the whole string and create somthing new
print(selfish)
qoute = 'to be or not to be'
print(qoute.capitalize())
print(qoute.find('be'))
print(qoute.upper())
print(qoute.replace('be', 'me').capitalize())
print(qoute)
#boolean
name = 'Avery'
is_cool = False
is_cool = True
print(is_cool)
print(bool(1))
print(bool('True'))
name = 'Avery Gaskins'
age = 32
relationship_status = 'married'
print(relationship_status)
#your answer
#current_year = 2025
#birth_year = input('What year were you born?')
#user_calulated_age = current_year - int(birth_year)
#print(f' \nYou are {user_calulated_age} years old');
#comments
#username = input('enter username')
#password = input('enter password')
#password_length = len(password)
#hidden_password = '*' * password_length
#print(f'{username}, your password {hidden_password} is {password_length} long')
#List slicing
amazon_cart = [
'notebooks',
'sunglasses',
'things',
'toys',
'etc'
]
li2 = ['a','b','c']
li3 = [1,2,'a', True]
#acccessing list
print(amazon_cart[0])
print(amazon_cart[0::2])
amazon_cart[0] = 'laptop'
new_cart= amazon_cart[:]
new_cart[0] = 'gum'
print(new_cart)
print(amazon_cart)
#Matrix
matrix = [
[1,2,3],
[2,4,6],
[7,8,9]
]
print(matrix[0][1])
print(matrix[2][2])
basket = [1,2,3,4,5]
#adding #appending # extnd
#new_list = basket.append(100)
#new_list = basket.insert(4,100)
#new_list = basket.extend([100,101])
new_list = basket
print(basket)
print(new_list)
#removing
basket.pop()
basket.pop(0) # removes from index point
basket.remove(2) # removes from actually number or object in array
new_list = basket.remove(4)
new_list = basket.clear()
print(basket)
basket2 = ['a','b','c','d','e','d']
print('d' in basket2)
print('i' in 'him my name is avery')
print(basket2.index('d', 0 , 4))
print(basket2.count('d'))
basket2.sort()
basket2.reverse()
#print(basket2[::-1])
#print(basket2)
print(list(range(1,100)))
new_sentence= ' '.join(['hi', 'my', 'name', 'is', 'JOJO'])
print(new_sentence)
#list unpacking
a,b,c, *other, d = [1,2,3,4,5,6,7,8,9]
print(other)
print(d)
weapons = None
print(weapons)
#dictionary
dictionary = {
'a':[1,2,3],
'b':'hello',
'c': True
}
print(dictionary['b'])
print(dictionary['a'][1])
my_list = {
'a':[1,2,3],
'b':'hello',
'c': True
}, {
'a':[4,5,6],
'b':'goodbye',
'c': False
},
print(my_list[0]['a'][2])
#List has order
my_list2 = {
'basket':[1,2,3],
'greet':'hello',
'age': 20
}
print('basket' in my_list2)
print('size' in my_list2)
print('hello' in my_list2.values())
print
player2 = my_list2.copy()
#my_list2.clear()
print(my_list2.pop('age'))
print(my_list2.update({'age':55}))
print(my_list2.update({'ages':55}))
print(player2)
print(my_list2)
print(my_list2.get('age', 55))
#method 2 of creating dictionaries
user2 = dict(name = 'JohnJohn')
print(user2)
#Tuple
my_tuple = (1,2,3,4,5)
#my_tuple[1] = 'z'
print(my_tuple[1])
print(5 in my_tuple)
user_tuple = {
(1,2) : [1,2,3],
'greet': 'hello',
'age' : 20
}
print(user_tuple[(1,2)])
my_tuple2 = (1,2,3,4,5,5)
x = my_tuple2[0]
y = my_tuple2[1]
x,y,z, *other = (1,2,3,4,5)
print(z)
print(my_tuple2.count(5))
print(my_tuple2.index(5))
print(len(my_tuple2))
my_set = {1,2,3,4,5,5}
my_set.add(100)
print(my_set) #everything needs to be unique
my_list = [1,2,3,4,5,5]
print(set(my_list))
my_set = {1,2,3,4,5,5}
new_set = my_set.copy()
print(len(my_set)) # only counts uniqu
print(list(my_list)) # converst to list
my_set3 = {1,2,3,4,5}
your_set = {4,5,6,7,8,9,10}
#print(my_set3.difference(your_set))
#print(my_set3.discard(5))
#print(my_set3)
#print(my_set.difference_update(your_set))
#print(my_set)
#print(my_set.intersection(your_set))
#print(my_set.isdisjoint(your_set)) # False - these sets have nothing in common , True these sets have something in common
print(my_set.issubset(your_set))
print(my_set.issuperset(your_set))
#Conditinal Logic
is_old = False
is_licensed = True
if is_old and is_licensed:
print('you are old enough to drive, and you have a license!')
else:
print('you are not old enough')
print('out of loop')
#Truty and Falsy
#Truthy
print(bool('hello'))
print(bool(0))
#Falsy
print(bool(''))
print(bool(0))
#method 2 condtionals : Ternanry
# conditio_if_true if condtion else condition_if_else
is_friend = True
can_message = "message allowed" if is_friend else "not allowed to message"
print(can_message)
#short circuiting
is_friend2 = True
is_user= True
if is_friend2 or is_user:
print('best friends forever')
#Other logical operators < = > <= >= not and or print(not(True))
#Excercise #3
is_magician = True
is_expert = False
# check if mage AND expert: "you are a master mage
# check if mage but not expoer : at leasst your getting ther
# check if youre not a mage : well you need magic powers
if is_magician and is_expert:
print('you are a master mage!')
elif is_magician and not(is_expert):
print('at least your getting there')
else:
print('you need magic powers')
#Forloops
user = {
'name': 'Golem',
'age': 5006,
'can_swim': False
}
for item in user.items():
print(item)
for key, value in user.items():
print(key, value)
#excercise 4
my_list5 = [1,2,3,4,5,6,7,8,9,10]
product = 0
for item in my_list5:
print(f' {product} + {item}')
product += item
print(f' items count is {product}')
for item in user.values():
print(item)
for item in user.keys():
print(item)
for item in [1,2,3,4,5]:
for x in ['a','b','c']:
print(item, x)
print('for loop is over')
#iterable - collection that can be iterated over (list , yuple , set , string,dictionary)
#range
print(range(100))
for item in range(0,10):
print(f' email {item} to user')
for _ in range(2,0,-1):
print(list(range(10)))
#enumerate
for i,char in enumerate('Hellooooo'):
print(i,char)
for i,char in enumerate([1,2,3]):
print(i,char)
for i,char in enumerate(list(range(100))):
if char == 50:
print(f' the index of {char} is {i}')
#while loop
i = 0
while i < 50:
print(i)
i += 1
#break
else:
print('exit while loop')
#For loop ad while loop comparison
my_list = [1,2,3]
for item in my_list:
continue
print(item)
i =0
while i < len(my_list):
print(my_list[i])
i += 1
#while True: will allow the user to say anything unil the user say bye and then loop breaks
# response = input('say somthing: ')
# if (response == 'bye'):
# break
#Excercis!
picture = [
[0,0,0,1,0,0,0],
[0,0,1,1,1,0,0],
[0,1,1,1,1,1,0],
[1,1,1,1,1,1,1],
[0,0,0,1,0,0,0],
[0,0,0,1,0,0,0]
]
for row in picture:
for pixel in row:
if (pixel == 1):
print('*', end='')
else:
print(' ', end='')
print('') # need new line after every row
#Excercise check for duplicates
some_list = ['a', 'b', 'c', 'b', 'd', 'm', 'n', 'n' ]
new_list = []
for item in some_list:
if some_list.count(item) > 1:
if item not in new_list:
new_list.append(item)
print(new_list)
#functions
# Postional Parameters vs arguments
# Default parmetes
#return
def say_hello(name='JohnSmith', emoji='noting'):
print(f'Helllloo, {name} {emoji}')
#arguments - actualy valus we provide to a functions
say_hello('Avery', ':)')
say_hello()
# Parameters vs arguments
#def sum(num1, num2):
# def another_func(num1,num2):
# return num1 + num2
# return another_func(num1,num2)
#total = sum(10,5)
#print(total)
#methods and fucntions
def test(a):
'''
Info: this fucntion test and prints param A
'''
print(a)
test('!!!!')
help(test)
print(test.__doc__)
#cleancode
#def is_even(num):
# if num % 2 == 0:
# return True
# elif num % 2 !=0:
# return False
#print(is_even(51))
def is_even(num):
return num % 2 == 0
print(is_even(51))
def super_func(name, *args, i='hi', **kwargs):
print(kwargs)
total = 0
for items in kwargs.values():
total += items
return sum(args) + total
print(super_func('Andy', 1,2,3,4,5, num1=5, num2=10))
#Rule: params, *args, default paramets, **kwargs
numbersSample = [1,2,3,4,10,24,5,78,35]
def highest_even(numbers):
evenNums = []
currentNum = 0
passNum = 0
for items in numbers:
if items % 2 == 0:
evenNums.append(items)
for highest in evenNums:
currentNum = highest
if currentNum > passNum:
passNum = currentNum
return passNum
print( highest_even([1,2,3,4,10,24,5,78,220,100,35]))
#Data Structure - way for us to organize information and date into a structure that can be used
Python
INFO