formatting

python.md

@@ -258,27 +258,27 @@ superman.work()
 
 ```python
 class Car:
-  def __init__(self, maker, model, serial):
-    self.maker = maker
-    self.model = model
-    self.serial = serial
+    def __init__(self, maker, model, serial):
+        self.maker = maker
+        self.model = model
+        self.serial = serial
 
 class CarFactory:
-  def __init__(self, name):
-    self.name = name
-    self.cars = []
+    def __init__(self, name):
+        self.name = name
+        self.cars = []
 
-  def makeCar(self, model):
-    self.cars.append(Car(self.name, model, len(self.cars)))
+    def makeCar(self, model):
+        self.cars.append(Car(self.name, model, len(self.cars)))
 
-  def listCars(self):
-    for car in self.cars:
-      print(car.maker + " " + car.model + ": " + str(car.serial))
+    def listCars(self):
+        for car in self.cars:
+            print(car.maker + " " + car.model + ": " + str(car.serial))
 
-  def findCar(self, serial):
-    for car in self.cars:
-      if(car.serial == serial):
-        return car
+    def findCar(self, serial):
+        for car in self.cars:
+            if(car.serial == serial):
+                return car
 
 toyota = CarFactory('Toyota')
 toyota.makeCar('Prius')