First update with working code

ghost.py

@@ -0,0 +1,45 @@
+from random import randint
+
+# Keep variable initialisation away from any statements that 'do' something, like printing
+score = 0
+
+# This is a function to help prevent code duplication
+# We pass in the score variable in brackets so that the function can use it
+def print_score(score):
+    # Here we use an 'f-string', note the f before the quotes
+    # That lets us use variables inside curly brackets
+    print(f"Your score is: {score}")
+
+
+
+# We don't need to track this as we will loop until we break
+while True:
+
+    # Call our custom function to print the scor
+    print_score(score)
+
+    # This is one way to do a multi-line string
+    print("""Three doors ahead...
+    A ghost behind one.
+    Which door do you open?""")
+
+    # We don't need to store the input or ghost door so can compute them at the time of use
+    # We test the negative (!=), just to flip the order for aesthetics
+    if int(input('Choose door 1, 2, or 3: ')) != randint(1,3):
+
+        # An alternative way to print more than one line, with \n 
+        print ('No ghost!\n You enter the next room')
+
+        # This is another way to increment a variable
+        score += 1
+
+    # Else in this case means that the input WAS the same as the random int
+    else:
+        # this will break us out of the while True loop
+        break
+
+# If we are here then we've lost
+print ('GHOST!\nRun away!\nGame Over')
+print_score(score)
+
+