22202956

Question 1 corrected
Question 4 was incorrect. removed it.
Question 5 done.
Question 6 done.

2.7 Exercises.py

 # question 1
 def rotateR(val):
-    return val[-1] + val[1:len(val)] if len(val) > 0 else None
+    return val[-1] + val[:-1] if len(val) > 0 else None
 
 
 
@@ -24,4 +24,6 @@ def rotateRx_modified(val):
     # So the only way to achieve this would be to return a value and assign it back.
     pass
 
-
+# question 6
+def rotateR2(val):
+    return rotateR(rotateR(val))