diff --git a/build.py b/build.py
index e69de29..037cb8e 100644
--- a/build.py
+++ b/build.py
@@ -0,0 +1,15 @@
+
+
+import re
+def is_rotation(string, rot_str):
+    if string is None or rot_str is None:
+        return False
+    if len(string) != len(rot_str):
+        return False
+    if re.search(rot_str, string+string):
+        return True
+    else:
+        return False
+s1 = 'foobarbaz'
+s2 = 'zabraboof'
+print(is_rotation(s1,s2))
diff --git a/build.pyc b/build.pyc
new file mode 100644
index 0000000..fb16c79
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..7516cc3
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..33c33e8
Binary files /dev/null and b/tests/test_is_rotation.pyc differ