first commit

Author: shollercoaster

fraction.py

@@ -0,0 +1,30 @@
+class Fraction():
+    def __init__(self, num, den = 1):
+        if den < 0:
+            new_num =  -num
+            new_den = -den
+            self.nr = new_num
+            self.dr = new_den
+        else:
+            self.nr = num
+            self.dr = den
+        
+    def multiply1(self, nr1, nr2, dr1 = 1, dr2 = 1):
+#        self.nr = nr1 * nr2
+#        self.dr = dr1 * dr2
+        product = self * fraction 
+        return product
+    
+    def multiply(self, fraction):
+        new_nr = self.nr * fraction
+        new_dr = fraction / self.dr
+        product = Fraction(new_nr, new_dr)
+        return product.display()
+
+    def display(self):
+        print(self.nr, "/", self.dr)
+        
+fr = Fraction(2,-3)
+fr.display()
+product = fr.multiply(2/3)
+print("product", product)

product.py

@@ -0,0 +1,28 @@
+class Product():
+    def __init__(self, id, marked_price, discount):
+        self.id = id
+        self.marked_price = marked_price
+        self.discount = discount
+        
+    @property
+    def selling_price(self):
+        return self.marked_price - ((self.discount/100) * self.marked_price)
+    
+    @property
+    def discount(self):
+        return self._discount + 2 if self.marked_price > 500 else self._discount
+    
+    @discount.setter
+    def discount(self, new_discount):
+        self._discount = new_discount
+    
+    def display(self):
+        print(self.id,  self.marked_price,  self.discount)
+    
+p1 = Product('X879', 400, 6)
+p2 = Product('A234', 100, 5)
+p3 = Product('B987', 990, 4)
+p4 = Product('H456', 800, 6)
+print(p1.selling_price)
+print(p3.discount)
+p4.display()