добавил папку

HNS/Excercises/Json/Circle.py

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+import math
+from Shape import Shape
+
+
+class Circle(Shape):
+    def __init__(self, radius):
+        self.radius = radius
+
+    def perimeter(self):
+        return 2 * math.pi * self.radius
+
+    def area(self):
+        return math.pi + (self.radius ** 2)

HNS/Excercises/Json/Rectangle.py

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+from Shape import Shape
+
+
+class Rectangle(Shape):
+    def __init__(self, width, height):
+        self.width = width
+        self.height = height
+
+    def perimeter(self):
+        return 2 * (self.width + self.height)
+
+    def area(self):
+        return self.width * self.height

HNS/Excercises/Json/Shape.py

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+import math
+from abc import abstractmethod
+
+
+class Shape:
+    color = ''
+
+    @abstractmethod
+    def area(self):
+        pass
+
+    @abstractmethod
+    def perimeter(self):
+        pass
+
+    @staticmethod
+    def convert_to_json(obj):
+        if isinstance(obj, Shape):
+            result = obj.__dict__
+            result['type'] = obj.__class__.__name__
+            result['color'] = obj.color
+            return result
+

HNS/Excercises/Json/Shapes zwei.json

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+"{'shapes': [{\"width\": 5, \"height\": 10, \"color\": \"red\", \"type\": \"Rectangle\"}, {\"radius\": 7, \"color\": \"blue\", \"type\": \"Circle\"}, {\"side\": 4, \"color\": \"green\", \"type\": \"Square\"}]}"

HNS/Excercises/Json/Square.py

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+from Shape import Shape
+
+
+class Square(Shape):
+    def __init__(self, side):
+        self.side = side
+
+    def perimeter(self):
+        return 4 * self.side
+
+    def area(self):
+        return self.side * 2

HNS/Excercises/Json/main.py

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+import json
+from Shape import Shape
+from Circle import Circle
+from Rectangle import Rectangle
+from Square import Square
+
+
+def safe_read(obj, property, default_value):
+    obj == property
+
+
+def create_shape(json):
+    if 'type' in json:
+        shape_type = json['type'].lower()
+
+        if shape_type == 'circle':
+            if 'radius' in json:
+                obj = Circle(json['radius'])
+            else:
+                obj = Circle(0)
+
+        elif shape_type == 'square':
+            if 'side' in json:
+                obj = Square(json['side'])
+            else:
+                obj = Square(0)
+
+        elif shape_type == 'rectangle':
+            obj = Rectangle(json['width'], json['height'])
+        else:
+            raise TypeError(f'вот тебе >>>(оIo), а не фигура {shape_type}')
+
+        if 'color' in json:
+            obj.color = json['color']
+        else:
+            obj.color = 'unknown'
+
+        return obj
+
+
+def json_to_python():
+    data_list = []
+    with open('shapes.json') as lines:
+        data = json.load(lines)
+    for i in data['shapes']:
+        sh1 = create_shape(i)
+        data_list.append(sh1)
+
+    data2 = '{\'shapes\': ' + json.dumps(data_list, default=Shape.convert_to_json) + '}'
+    with open('Shapes zwei.json', 'w') as f:
+        json.dump(data2, f)
+
+    print('{\'shapes\': ' + json.dumps(data_list, default=Shape.convert_to_json) + '}')
+    print(json.dumps({'shapes': data_list}, default=Shape.convert_to_json))
+
+json_to_python()
+
+
+
+
+

HNS/Excercises/Json/shapes.json

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+{
+    "shapes": [
+        {
+            "type": "rectangle",
+            "width": 5,
+            "height": 10,
+            "color": "red"
+        },
+        {
+            "type": "circle",
+            "radius": 7,
+            "color": "blue"
+        },
+        {
+            "type": "square",
+            "side": 4,
+            "color": "green"
+        }
+    ]
+}