Katrashova branch

Practice/Katrashova/lesson4/les 4.6.py

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+def find_max(a, b):
+    if a > b:
+        return a
+    elif a < b:
+        return b
+    else:
+        print("Числа равны")
+x = int(input("Введите число a: "))
+y = int(input("Введите число b: "))
+res = find_max(x, y)
+print(f"Большее число: {res}")
+
+
+def print_max(a, b):
+    if a > b:
+        print(a)
+    elif a < b:
+        print(b)
+    else:
+        print("Числа равны")
+x = int(input("Введите число a: "))
+y = int(input("Введите число b: "))
+print_max(x, y)

Practice/Katrashova/lesson4/les4.7.py

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+def my_decor(func):
+    def wrapper():
+        print("===========")
+        res = func()
+        print("===========")
+        return res
+    return wrapper
+
+def my_func():
+    print("Тут основная функция")
+my = my_decor(my_func)
+my()

Practice/Katrashova/lesson4/les4.8.py

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+import random
+
+print("Давай сыграем в камень, ножницы, бумага")
+x = ("камень", "ножницы", "бумага")
+
+while True:
+    y = input("Твой выбор - камень, ножницы, бумага: ")
+    comp = random.choice(x)
+    print(f"Вы выбрали {y}, компьютер выбрал {comp}.")
+    if y == comp:
+        print("Ничья!")
+    elif y == "камень":
+        if comp == "ножницы":
+            print("Ты победил!")
+        else:
+            print("Ты проиграл.")
+    elif y == "бумага":
+        if comp == "камень":
+            print("Ты победил!")
+        else:
+            print("Ты проиграл.")
+    elif y == "ножницы":
+        if comp == "бумага":
+            print("Ты победил!")
+        else:
+            print("Ты проиграл.")

Practice/Katrashova/lesson5/5.1.py

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+
+def arr_sort(arr):
+    for i in range(len(arr)):
+        m = i
+        for j in range(i + 1, len(arr)):
+            if arr[j] < arr[m]:
+                m = j
+        if i != m:
+            arr[i], arr[m] = arr[m], arr[i]
+
+array = [0, 3, 24, 2, 3, 7]
+
+arr_sort(array)
+print(array)

Practice/Katrashova/lesson5/5.2.py

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+def fun(my_list):
+    new_set = set()
+    for i in my_list:
+        if i in new_set:
+            print(f'Первый повторившийся символ: {my_list[i]} ')
+            break
+        else:
+            new_set.add(my_list[i])
+
+
+lst = [2, 3, 4, 5, 3, 2]
+fun(lst)

Practice/Katrashova/lesson5/5.3.py

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+s ="Белеет парус одинокой \nв тумане моря голубом!.."
+d = {"Белеет": "one", "парус": "two", "моря": "three"}
+
+print(f"До:\n{s}")
+for i, value in d.items():
+    s = s.replace(i, value)
+print(f"После:\n{s}")

Practice/Katrashova/lesson5/5.4.py

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+def search(ls, a):
+    ind = set()
+    for i in range(len(ls)):
+        for m in range(len(ls[i])):
+            if a == ls[i][m]:
+                ind.add(m)
+    ind = list(ind)
+    return ind
+
+
+def delete(my_lst, lst_to_remove):
+    for i in range(len(my_lst)):
+        for n in reversed(lst_to_remove):
+            del my_lst[i][n]
+    return my_lst
+
+
+lst = [
+    [1, 2, 3, 4, 5, 6, 7],
+    [1, 1, 1, 2, 3, 4, 4],
+    [2, 2, 1, 3, 3, 5, 6]
+]
+
+d = int(input("Ведите цифру для удаления стобцов( от 1 до 7): "))
+res = search(lst, d)
+res2 = delete(lst, res)
+print(f"Удалил: {res2}")

Practice/Katrashova/lesson5/5.5.py

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+with open("text.txt", "r") as fo:
+    reading = fo.read()
+my_choice = input("Что заменить? 1 - табуляция на пробелы, 2 - пробелы на табуляцию \n")
+
+with open("text.txt", "w") as fw:
+    if my_choice == "1":
+        fw.write(reading.replace("\t", "    "))
+    elif my_choice == "2":
+        fw.write(reading.replace("    ", "\t"))
+print("Файл изменен")

Practice/Katrashova/lesson5/text.txt

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+There are	different kinds of animals	 on our planet, and	 all of them are very important for it.
+For	 example, everybody knows	 that the sharks	 are dangerous for people, but they are useful for cleaning seawater.
+There	 are two    types of animals:   domestic (or pets) and wild.

Practice/Katrashova/lesson6/6.1.py

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+class Tank():
+    def __init__(self, name, crew, weight):
+        self.name = name
+        self.crew = crew
+        self.weight = weight
+
+    def show(self):
+        print(f"Танк {self.name}  экипажем {self.crew} человек(а), и массой {self.weight}")
+
+    def __lt__(self, other):
+        if self.weight > other.weight:
+            print(f'У Игрока {self.name} больше шансов')
+        elif self.weight == other.weight:
+            print('Шансы равны')
+        else:
+            print(f'У Игрока {self.name} меньше шансов')
+
+
+player1 = Tank('T-80', 3, 40)
+player2 = Tank('T-34', 4, 30)
+lst = [player1, player2]
+for i in lst:
+    i.show()

Practice/Katrashova/lesson6/6.2.py

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+class Duck:
+    color = "белый"
+
+    def __init__(self, name, weight):
+        self.name = name
+        self.weight = weight
+
+    @staticmethod
+    def crack():
+        print("Сrack")
+
+    @classmethod
+    def color_duck(cls):
+        print(f"Цвет утки {cls.color}")
+
+    def __repr__(self):
+        return f"Имя утки: {self.name}, вес {self.weight} кг"
+
+    def __lt__(self, other):
+        if self.weight < other.weight:
+            return f"Утка {other.name} тяжелее"
+        else:
+            return f"Утка {self.name} тяжелее"
+
+    def __ne__(self, other):
+        return self.weight != other.weight
+
+    def __add__(self, other):
+        return self.weight + other.weight
+
+
+duck1 = Duck("Катя", 4)
+duck2 = Duck("Вика", 5)
+
+duck1.crack()
+duck2.color_duck()
+print(duck1)
+print(duck2)
+print(duck1 < duck2)
+print(duck1 != duck2)
+print(f"Общий вес уток {duck1 + duck2} кг")

Practice/Katrashova/lesson6/6.3.py

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+import tempfile
+import os
+
+
+class WrapStrToFile:
+    def __init__(self):
+        self._filepath = tempfile.mktemp()
+
+    @property
+    def content(self):
+        try:
+            with open(self._filepath, 'r') as f:
+                return f.read()
+        except Exception:
+            return 'Файл еще не существует'
+
+    @content.setter
+    def content(self, value):
+        with open(self._filepath, 'w') as f:
+            f.write(value)
+
+    @content.deleter
+    def content(self):
+        os.remove(self._filepath)
+
+
+a = WrapStrToFile()
+print(a.content)  # Output: File doesn't exist
+a.content = 'test str'
+print(a.content)  # Output: test_str
+a.content = 'text 2'
+print(a.content)  # Output: text 2
+del a.content     # после этого файла не существует

Practice/Katrashova/lesson7/les7.1.py

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+class Man:
+    def __init__(self, name):
+        self.name = name
+
+    def solve_task(self):
+        print("I'm not ready yet")
+
+man = Man('Альберт')
+man.solve_task()

Practice/Katrashova/lesson7/les7.2.py

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+import time
+import random
+
+class Man:
+
+    def __init__(self, name):
+        self.name = name
+    def solve_task(self):
+        print("I'm not ready yet")
+
+class Pupil(Man):
+    def solve_task(self):
+        delay = random.randint(3, 6)
+        time.sleep(delay)
+        super().solve_task()
+
+
+man = Man("Альберт")
+pupil = Pupil("Арнольд")
+man.solve_task()
+pupil.solve_task()

Practice/Katrashova/lesson8/8.1.py

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+class Iter:
+
+    def __init__(self, text, my_sim):
+        self.text = text
+        self.my_sim = my_sim
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        my_str = ' '
+        new_str = ''
+        while my_str != '':
+            my_str = self.text.read(1)
+            if my_str == self.my_sim:
+                break
+            else:
+                new_str += my_str
+
+        if new_str != '':
+            return new_str
+        else:
+            raise StopIteration
+
+
+
+
+with open('text.txt', 'r') as f:
+    for i in Iter(f, '§'):
+        print(i)

Practice/Katrashova/lesson8/8.2.py

@@ -0,0 +1,8 @@
+def my_gen(file):
+    with open(file, 'r', encoding='utf8') as f:
+        for s in f:
+            yield s
+
+
+for i in my_gen('text.txt'):
+    print(i)

Practice/Katrashova/lesson8/8.3.py

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+import time
+
+class Wait:
+    def __init__(self):
+        self.begint = 0
+
+    def __enter__(self):
+        self.begint = time.time()
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        print(f"Around time: {time.time() - self.begint} seconds")
+
+with Wait():
+    arr = []
+    for i in range(1, 10000000):
+        arr.append(i**2)

Practice/Katrashova/lesson8/8.4.py

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+import itertools
+
+
+def arr(num1, num2, num3):
+    joint = list(itertools.chain(num1, num2, num3))
+    return joint
+
+def less(lst):
+    filtered = list(itertools.filterfalse(lambda x: len(x) != 5, lst))
+    return filtered
+
+def key(string, r):
+    passwords = list(itertools.combinations(string, r))
+    return passwords
+
+print(arr([1, 2, 3], [4, 5], [6, 7]))
+print(less(['hello', 'i', 'write', 'cool', 'code']))
+print(key('password', 4))

Practice/Katrashova/lesson8/text.txt

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+§ It goes without saying, books are our teachers and friends. They teach us to be kind, clever, polite, hardworking, friendly.
+§ Books help us to learn more about nature, the world around us and many other interesting things.There are a lot of books on history, about animals, travellers, children, school and so on.
+§ Children like to read adventure and magic books, science fiction and detective stories.
+§ They enjoy stories, short stories, novels, fairy-tales, fables and poems.