diff --git a/build.py b/build.py
index 8b13789..4d5ce3e 100644
--- a/build.py
+++ b/build.py
@@ -1 +1,10 @@
-
+import re
+def validate_email(user_input):
+    if user_input==None:
+        return False
+    isvalid=re.match(r'[\w.-]+@[\w.-]+.\w+',user_input)
+    if isvalid:
+        return True
+    else:
+        return False
+print validate_email("heha@xya")
diff --git a/build.pyc b/build.pyc
new file mode 100644
index 0000000..ba588e1
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..8100723
Binary files /dev/null and b/tests/__init__.pyc differ
diff --git a/tests/test_validate_email.pyc b/tests/test_validate_email.pyc
new file mode 100644
index 0000000..b205874
Binary files /dev/null and b/tests/test_validate_email.pyc differ