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. 
@@ -18,39 +25,34 @@ def cleanScene():
     bpy.ops.object.select_all(action = "SELECT");
     bpy.ops.object.delete();
 
-# Calling the clean scene method. 
+# Iterate over each grid 'cell' we want a cube at.
+def spawnGround():  
+    for x in range(20):
+        for y in range(20):
+            for z in range(1): 
+                # Set the location. 
+                location = (x, y, z);
+
+                # Add the cubes. 
+                bpy.ops.mesh.primitive_cube_add(size = size, location=location, scale=(1, 1, 1));
+                # Set the newly created cube as the active object. 
+                activeObject = bpy.context.active_object;
+                # Add a new material slot. 
+                # bpy.ops.object.material_slot_add();
+                # Creating a new material and assigning it to the active cube. 
+                material = bpy.data.materials.new("Material");
+                material.use_nodes = True;
+                materialNodes = material.node_tree.nodes;
+                materialLinks = material.node_tree.links;
+
+                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);
+
+# Calls the functions: 
 cleanScene();
-
+spawnGround();
-# 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):
-    for y in range(20):
-        for z in range(1): 
-            # Set the location. 
-            location = (x, y, z);
-
-            # Add the cubes. 
-            bpy.ops.mesh.primitive_cube_add(size = size, location=location, scale=(1, 1, 1));
-            # Set the newly created cube as the active object. 
-            activeObject = bpy.context.active_object;
-            # Add a new material slot. 
-            # bpy.ops.object.material_slot_add();
-            # Creating a new material and assigning it to the active cube. 
-            material = bpy.data.materials.new("Material");
-            material.use_nodes = True;
-            materialNodes = material.node_tree.nodes;
-            materialLinks = material.node_tree.links;
-
-            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)
-
 
 # Notes: 
 # - For loop for the grid: