move get_todos and set db paths

books/kobo/__init__.py

@@ -1,6 +1,17 @@
+import my.books.kobo.kobuddy
+kobuddy.set_databases('/L/backups/kobo')
+
 from my.books.kobo.kobuddy import *
 
 
+def get_todos():
+    def with_todo(ann):
+        if ann is None:
+            ann = ''
+        return 'todo' in ann.lower().split()
+    return by_annotation(with_todo)
+
+
 def test_todos():
     todos = get_todos()
     assert len(todos) > 3