Made the code have functions.

Trial.py

@@ -2,6 +2,13 @@
 import bpy;
 import random;
 
+# Variables: 
+
+size = 1; # Size of each cube. 
+
+x = y = z = size / 2; # Setting the x, y, and z positions. 
+
+
 #Function to clean the scene. This removes all of the objects, collections, materials, particles, textures, images, curves, meshes, actions, nodes, and worlds from the scene. 
 def cleanScene():
     # Changes the mode to object mode if it is in Edit mode. 
@@ -18,17 +25,9 @@ def cleanScene():
     bpy.ops.object.select_all(action = "SELECT");
     bpy.ops.object.delete();
 
-# Calling the clean scene method. 
-cleanScene();
-
-# Size of each cube. 
-size = 1;
-
-# Setting the x, y, and z positions. 
-x = y = z = size / 2;
-
 # Iterate over each grid 'cell' we want a cube at.
-for x in range(20):
+def spawnGround():  
+    for x in range(20):
         for y in range(20):
             for z in range(1): 
                 # Set the location. 
@@ -49,8 +48,11 @@ for x in range(20):
                 activeObject.data.materials.append(material);
 
                 # Change the base colour. 
-            materialNodes['Principled BSDF'].inputs['Base Color'].default_value = (1.0, 0.47, 1.0, 1.0)
+                materialNodes['Principled BSDF'].inputs['Base Color'].default_value = (1.0, 0.47, 1.0, 1.0);
 
+# Calls the functions: 
+cleanScene();
+spawnGround();
 
 # Notes: 
 # - For loop for the grid: