I got to checkpoint 2.

I really understand ranges maybe due to my math background.
One thing that I tried when doing the odd numbers was to input the stride as 2*number+1. My thought process was to originally include zero. Putting in an equation like this unfortunately does not work.
Then I thought about the definition of odd and realized that zero is not odd because it is divisible by 2.

ranges.py

@@ -9,15 +9,18 @@ def print_all_numbers(maximum):
 
 def print_even_numbers(maximum):
     "Prints all even integers from 0 to maximum."
-    pass
+    for number in range(0, maximum, 2):
+        print(number)
 
 def print_odd_numbers(maximum):
     "Prints all odd integers from 0 to maximum."
-    pass
+    for number in range(1, maximum, 2):
+        print(number)
 
 def print_multiples_of_five(maximum):
     "Prints all integers which are multiples of five from 0 to maximum."
-    pass
+    for number in range(0, maximum, 5):
+        print(number)
 
 chosen_maximum = int(input("Choose a number: "))
 print(f"All numbers from 0 to {chosen_maximum}")

square.py

@@ -1,8 +1,8 @@
 from turtle import *
 
 def square(side_length):
-    sides=[1, 2, 3, 4]
+    side=[1, 2, 3, 4]
-    for sides in sides:
+    for sides in side:
         forward(side_length)
         right(90)