first commit

tuple_addition.py

@@ -0,0 +1,8 @@
+def tuple_add(t1, t2):
+    n = len(t1)
+    if n != len(t2):
+        raise TypeError()
+    ret = []
+    for i in range(n):
+        ret.append(t1[i] + t2[i])
+    return tuple(ret)