Add Python function for checking if a number is even or odd

is-even-function/is-even-function.py

@@ -0,0 +1,8 @@
+def is_even(num):
+    return num % 2 == 0
+
+result1 = is_even(6)
+result2 = is_even(7)
+
+print(result1)  # Should print True
+print(result2)  # Should print False