diff --git a/src/testdatagen/__init__.py b/src/testdatagen/__init__.py
new file mode 100644
index 0000000..fab17fa
--- /dev/null
+++ b/src/testdatagen/__init__.py
@@ -0,0 +1,3 @@
+"""TestDataGen - CLI tool for generating realistic test data."""
+
+__version__ = "0.1.0"
\ No newline at end of file