Python Coursera

#-------------------list------------------
"""""
num_list = [23, 25,12, 543, 345, 123, 43, 64, 23]
list1 = [1, 2, 3, 4, 5]
print(*list1)
print(list1, sep=" ")
list1.insert(0, 6)
list1.append(8)
list1.extend([1, 2, 3, 4])
list1.pop(3)
del list1 [4]
print(list1, sep=" ")
"""
#---------------Tuple---------------------
"""""
my_tuple = 1, "Erasyl", 5.4, True

print(type(my_tuple))
print(my_tuple.count('Erasyl'))
"""
#-------------set-------------------
"""""
set_a = {1, 2, 3, 4, 5}
print(type(set_a))
set_a.add(6)
set_a.add(5)
set_a.remove(2)
print(set_a)

set_b = {4, 5, 6, 7, 8}

set_a.union (set_b)
print(set_a.union(set_b))
print(set_a | set_b)
print(set_a.intersection(set_b))
print(set_a & set_b)
print(set_a.difference(set_b))
print(set_a - set_b)
print(set_a.symmetric_difference(set_b))
print(set_a ^ set_b)
"""
#---------------Dictionaries----------------------
""""
my_d = {1: 'Test', 'Name': 'Erasyl', }
my_d[2] = 'Test2'
print(my_d)
for key, value in my_d.items():
    print(str(key) + " : " + value)
"""

#-------------Args and Kwargs-----------------------
"""
def sum_of(*args):
    sum = 0
    for x in args:
        sum += x
    return sum
print(sum_of(5, 3, 6))

def sum_of_k(**kwargs):
    sum = 0
    for key, value in kwargs.items():
        sum += value
    return sum

print(sum_of_k(coffe = 2.99, cake = 4.33, juse = 2.99))
"""
#-------------Exceptions-------------------------------
"""
def divide_by(a, b):
    return a / b

try:
    ans = divide_by(40, 0)
except ZeroDivisionError as e:
    print(e, "we connot divide by zero")
except Exception as e:
    print("Somthing is wrong!", e)
"""

#--------------------file------------------------------
"""
file = open('test.txt', mode= 'r')

data = file.readline()
print(data)
file.close()

with open('test.txt', mode = 'r') as file:
    data = file.readline()

print(data)

"""
#------------------create file--------------------------
"""
with open('newfile.txt', 'w') as file:
    file.write("This is a new file created!")
with open('newfile.txt', 'w') as file:
    file.writelines(["This is a new file created", "\n This is another line to be added"])
with open('newfile.txt', 'a') as file:
    file.writelines(["\nThis is a new file created", "\n This is another line to be added"])
"""
#-----------------reading files--------------------------
"""
with open('newfile.txt', 'r') as file:
    print(file.read(10))

with open('newfile.txt', 'r') as file:
    print(file.readline())

with open('newfile.txt', 'r') as file:
    for x in file:
        print(x)
"""
#----------------map and filter----------------------------
"""
menu = ["espresso", "mocha", "latte", "cppuccion", "cortado", "americano"]

def find_coffee(coffee):
    if coffee[0] == 'c':
        return coffee
#map---->
map_coffee = map(find_coffee, menu)
print(map_coffee)
for x in map_coffee:
    print(x)
#filter---->
filter_coffee = filter(find_coffee, menu)
print(filter_coffee)
for x in filter_coffee:
    print(x)

"""
#----------------class--------------------
"""
class Myclass():
    a = 5
    def hello(self):
        print("hello, world!")


myc = Myclass()

print(myc.a)
print(myc.hello())
"""
#----------------class2---------------------
"""
class Recipe():
    def __init__(self, dish, items, time) -> None:
        self.dish = dish
        self.items =items
        self.time = time

    def contents(self):
        print("The " + self.dish + " has " + str(self.items) + \
              " and takes " + str(self.time) + " min to prepare")

pizza = Recipe("Pizza", ["cheese", "bread", "tomato"], 45)
pasta = Recipe("Pasta", ["penne", "sauce"], 55)

print(pizza.items)
print(pasta.items)
print(pizza.contents())
"""
#-----------------class, instance methods---------------------------
"""
class Payslips:
    def __init__(self, name, payment, amount) -> None:
        self.name = name
        self.payment = payment
        self.amount = amount

    def pay(self):
        self.payment = "yes"

    def status(self):
        if self.payment == "no":
            return self.name + " is not paid yet"
        else:
            return self.name + " is paid " + str(self.amount)


Erzhan = Payslips("Erzhan", "no", 1000)
Samat = Payslips("Samat", "no", 3000)

print(Erzhan.status(), "\n", Samat.status())

Samat.pay()

print(Erzhan.status(), "\n", Samat.status())
"""

#------------------Parent classes vs child classes--------------------
"""
class Employees:
    def __init__(self, name, last) -> None:
        self.name = name
        self.last = last

class Supervisors(Employees):
    def __init__(self, name, last, password) -> None:
        super().__init__(name, last)
        self.password = password

class Chefs(Employees):
    def leave_request(self, days):
        return "May I take a leave for " + str(days) + " days"

adil = Supervisors("Adil", "A", "apple")

enilik = Chefs("Enilik", "E")
juno = Chefs("Juno", "J")

print(enilik.leave_request(3))
print(adil.password)
print(enilik.name)
"""