diff --git a/build.py b/build.py
index e69de29..76870ef 100644
--- a/build.py
+++ b/build.py
@@ -0,0 +1,22 @@
+def is_rotation(s1,s2):
+    rotations = []
+    if s1 == None:
+        if s2 == None:
+            return True
+        else:
+            return False
+
+    elif s1 == '':
+        if s2 == '':
+            return True
+        else:
+            return False
+    else:
+
+        for i in range(0,len(s1)):
+            temp = s1[i:] + s1[:i]
+            rotations.append(str(temp))
+        if s2 in rotations:
+            return True
+        else:
+            return False
diff --git a/build.pyc b/build.pyc
new file mode 100644
index 0000000..a50c605
Binary files /dev/null and b/build.pyc differ
diff --git a/tests/__init__.pyc b/tests/__init__.pyc
new file mode 100644
index 0000000..f445384
Binary files /dev/null and b/tests/__init__.pyc differ
diff --git a/tests/test_is_rotation.pyc b/tests/test_is_rotation.pyc
new file mode 100644
index 0000000..df63355
Binary files /dev/null and b/tests/test_is_rotation.pyc differ