Урок_8

Урок 8. Практическое задание/task_1.py

@@ -12,3 +12,32 @@
 Второй, с декоратором @staticmethod, должен проводить валидацию числа, месяца
 и года (например, месяц — от 1 до 12). Проверить работу полученной структуры на реальных данных.
 """
+
+class Data:
+
+    def __init__(self, date):
+        self.day_month_year = date
+
+    @classmethod
+    def make_attributes(cls, date):
+        temp_list = date.split('-')
+        Data.day = int(temp_list[0])
+        Data.month = int(temp_list[1])
+        Data.year = int(temp_list[2])
+
+    @staticmethod
+    def validate():
+        if Data.day not in range(1, 31):
+            return "imposible day num"
+        if Data.month not in range(1, 12):
+            return "imposible day month"
+        if Data.year <= 0:
+            return "imposible day year"
+        return f"current date is: {Data.day}/{Data.month}/{Data.year}"
+
+#    def __str__(self):
+ #       print(f"Date is {Data.make_attributes}")
+
+
+Data.make_attributes("10-04-2023")
+print(Data.validate())

Урок 8. Практическое задание/task_2.py

@@ -5,3 +5,20 @@
 Проверьте его работу на данных, вводимых пользователем. При вводе пользователем нуля
 в качестве делителя программа должна корректно обработать эту ситуацию и не завершиться с ошибкой.
 """
+
+class MyException(Exception):
+    txt = "IMPOSIBLE!!!!"
+
+    def __str__(self):
+        return self.txt
+
+number = int(input('Please enter number '))
+devider = int(input('Please enter devider '))
+
+try:
+    if devider == 0:
+        raise MyException
+except MyException as err:
+    print(err)
+else:
+    print(f'result of devision is {number/devider:.2f}')

Урок 8. Практическое задание/task_3.py

@@ -9,3 +9,26 @@
 
 Класс-исключение должен контролировать типы данных элементов списка.
 """
+
+class MyException(Exception):
+    txt = "PROBLEM!!!! Value can't be converted to int"
+
+    def __str__(self):
+        return self.txt
+
+
+final_list = []
+while True:
+    val = input("Please enter number or 'stop' for finish ")
+    if val == 'stop':
+        break
+    else:
+        try:
+            if val.isnumeric():
+                final_list.append(int(val))
+            else:
+                raise MyException
+        except MyException as err:
+            print(err)
+
+print(final_list)

Урок 8. Практическое задание/task_4_5_6.py

@@ -19,3 +19,136 @@
 Подсказка: постарайтесь по возможности реализовать в проекте
 «Склад оргтехники» максимум возможностей, изученных на уроках по ООП.
 """
+
+class NoSpace(Exception):
+    txt = "There is no free space in this stock"
+
+    def __str__(self):
+        return self.txt
+
+
+class UnknownItem(Exception):
+    txt = "I don't know this item"
+
+    def __str__(self):
+        return self.txt
+
+
+class NotInt(Exception):
+    txt = "PROBLEM!!!! Value can't be converted to int"
+
+    def __str__(self):
+        return self.txt
+
+class Stock:
+    list_of_equipment = {
+        'Printer': [],
+        'Scaner': [],
+        'Copier': []
+    }
+
+    def __init__(self, size):
+        self.size = size
+
+    def add_to_stock(self, item):
+        if self.size > 0:
+            if item.class_name() == 'Printer':
+                self.list_of_equipment['Printer'].append(item)
+                self.size -= 1
+            elif item.class_name() == 'Scaner':
+                self.list_of_equipment['Scaner'].append(item)
+                self.size -= 1
+            elif item.class_name() == 'Copier':
+                self.list_of_equipment['Scaner'].append(item)
+                self.size -= 1
+            else:
+                raise UnknownItem
+        else:
+            raise NoSpace
+        return "item was successfully added"
+
+    def take_of_item(self, item):
+        if item.class_name() == 'Printer':
+            self.list_of_equipment['Printer'].remove(item)
+            self.size += 1
+        elif item.class_name() == 'Scaner':
+            self.list_of_equipment['Scaner'].remove(item)
+            self.size += 1
+        elif item.class_name() == 'Copier':
+            self.list_of_equipment['Scaner'].remove(item)
+            self.size += 1
+        else:
+            raise UnknownItem
+
+    def show_equipment(self):
+        res = "There are in stock: \n"
+        for key in self.list_of_equipment:
+            if len(self.list_of_equipment[key]) > 0:
+                res += f"{key}s = {len(self.list_of_equipment[key])} \n"
+                res += "models are: \n"
+                for el in self.list_of_equipment[key]:
+                    res += f"{el.firm_name} model {el.model} \n"
+            else:
+                res += f"{key} no in stock\n"
+        return res
+
+
+class Equipment:
+    voltage = 220
+
+    def __init__(self, name, model):
+        self.firm_name = name
+        self.model = model
+
+    def class_name(self):
+        return self.__class__.__name__
+
+    def __str__(self):
+        return self.firm_name
+
+
+class Printer(Equipment):
+    paper_size = 'A3'
+    pass
+
+
+class Copier(Equipment):
+    color = False
+    pass
+
+
+class Scaner(Equipment):
+    scan_speed_list_per_minute = 10
+    pass
+
+go_on = True
+stock_capisity = input("Please enter stock capasity, or enter 'cancel'")
+while go_on:
+    try:
+        if stock_capisity == 'cancel':
+            break
+        else:
+            if stock_capisity.isnumeric():
+                stock = Stock(int(stock_capisity))
+                go_on = False
+            else:
+                raise NotInt
+    except NotInt as e:
+        print(e)
+
+try:
+    pr1 = Printer("HP", 'ls-1010')
+    stock.add_to_stock(pr1)
+    print(stock.show_equipment())
+    pr2 = Printer("Keosera", '2323')
+    stock.add_to_stock(pr2)
+    print(stock.show_equipment())
+    scaners = [['lenovo', '2324'], ['LG', '234-5'], ['Samsung', 'sg-123']]
+    for el in scaners:
+        stock.add_to_stock(Scaner(el[0],el[1]))
+    print(stock.show_equipment())
+    print("_____________")
+    stock.take_of_item(pr2)
+    print(stock.show_equipment())
+except (NoSpace, UnknownItem) as e:
+        print(e)

Урок 8. Практическое задание/task_7.py

@@ -6,3 +6,43 @@
 создав экземпляры класса (комплексные числа) и выполнив сложение и умножение созданных экземпляров.
 Проверьте корректность полученного результата.
 """
+
+import re
+
+
+class Complexus:
+
+    def __init__(self, comlex_number):
+        if comlex_number[0] == '-':
+            comlex_number = comlex_number[1:-1]
+            if comlex_number.find('-') != -1:
+                self.first = int("-" + re.split('[- ]', comlex_number)[0])
+                self.second = int('-' + re.split('[- ]', comlex_number)[1].replace('i', ''))
+            else:
+                self.first = int("-" + re.split('[+ ]', comlex_number)[0])
+                self.second = int('-' + re.split('[+ ]', comlex_number)[1].replace('i', ''))
+        else:
+            if comlex_number.find('-') != -1:
+                self.first = int(re.split('[- ]', comlex_number)[0])
+                self.second = int('-' + re.split('[- ]', comlex_number)[1].replace('i', ''))
+            else:
+                self.first = int(re.split('[+ ]', comlex_number)[0])
+                self.second = int('-' + re.split('[+ ]', comlex_number)[1].replace('i', ''))
+
+    def __str__(self):
+        return f"{self.first}{self.second}i"
+
+    def __add__(self, other):
+        a = self.first + other.first
+        b = self.second + other.second
+        return Complexus(f"{a}{b}i")
+
+    def __mul__(self, other):
+        a = (self.first * other.first) - (self.second * other.second)
+        b = (self.first * other.second) + (self.second * other.first)
+        return Complexus(f"{a}{b}i")
+
+c1 = Complexus('5-7i')
+c2 = Complexus('4-5i')
+print(f"sum of c1 and  c2 will be {c1 + c2}")
+print(f"multiplication of c1 and c2 will be {c1 * c2}")