diff --git a/simplesvnbrowser/__init__.py b/simplesvnbrowser/__init__.py
index e69de29..2707528 100644
--- a/simplesvnbrowser/__init__.py
+++ b/simplesvnbrowser/__init__.py
@@ -0,0 +1 @@
+from simplesvnbrowser.main_window import MainWindow
diff --git a/simplesvnbrowser/cli.py b/simplesvnbrowser/cli.py
index 629d469..2a00351 100644
--- a/simplesvnbrowser/cli.py
+++ b/simplesvnbrowser/cli.py
@@ -1,2 +1,4 @@
+import simplesvnbrowser
+
 def run(argv):
     print(argv)
diff --git a/simplesvnbrowser/main_window.py b/simplesvnbrowser/main_window.py
new file mode 100644
index 0000000..1c2840e
--- /dev/null
+++ b/simplesvnbrowser/main_window.py
@@ -0,0 +1,3 @@
+class MainWindow:
+    def __init__(self):
+        pass