I chnaged my entire code to add superturle animation.

I couldn't draw the windows to my skyscrapers so, i though of using superturtle animation.However, I'm having trouble installing superturle.
I did text my professor using discord about this issue. I have a feeling that I might have to change my intial project idea to something simple.

animation.py

@@ -0,0 +1,11 @@
+from superturtle.animation import animate
+from turtle import forward, right
+
+def square(side_length):
+    for side in range(4):
+        forward(side_length)
+        right(90)
+
+for frame in animate(40, loop=True):
+    size = frame.interpolate(50, 100, mirror=True)
+    square(size)

drawing.py

@@ -3,29 +3,38 @@
 # By Jannatun Uddin
 #
 # (Briefly describe what this program does.)
+from superturtle.animation import animate
+from turtle import forward, left, penup, pendown, fillcolor, begin_fill, end_fill
 
-import turtle
-def draw_building(width, height):
+def draw_building(width, height, color="gray"):
+    fillcolor(color)
+    begin_fill()
     for i in range(2):
-        turtle.forward(width)
-        turtle.left(90)
-        turtle.forward(height)
-        turtle.left(90)
-turtle.penup()
-turtle.backward(90)  
-turtle.pendown()
+        forward(width)
+        left(90)
+        forward(height)
+        left(90)
+    end_fill()
 
-draw_building(60,150)
+# Animation loop
+for frame in animate(40, loop=True):
+    brightness = int(frame.interpolate(100, 200, mirror=True))  
 
-turtle.penup()
-turtle.forward(90)  
-turtle.pendown()
 
-draw_building(40,100)
+    # First building
+    penup()
+    pendown()
+    draw_building(60, 100, color)
 
-turtle.penup()
-turtle.forward(30)
-turtle.pendown()
+    # Second building
+    penup()
+    forward(80)
+    pendown()
+    draw_building(50, 120, color)
 
-draw_building(50,150)
-turtle.done()
+    # Third building
+    penup()
+    forward(70)
+    pendown()
+    draw_building(70, 90, color)
+input()