diff --git a/homeassistant/components/frontend/__init__.py b/homeassistant/components/frontend/__init__.py
index f00fb38809b..b43faf76952 100644
--- a/homeassistant/components/frontend/__init__.py
+++ b/homeassistant/components/frontend/__init__.py
@@ -51,7 +51,9 @@ def setup(hass, config):
 def _handle_get_root(handler, path_match, data):
     """ Renders the debug interface. """
 
-    write = lambda txt: handler.wfile.write((txt + "\n").encode("UTF-8"))
+    def write(txt):
+        """ Helper to write text to the output. """
+        handler.wfile.write((txt + "\n").encode("UTF-8"))
 
     handler.send_response(HTTP_OK)
     handler.send_header('Content-type', 'text/html; charset=utf-8')
diff --git a/homeassistant/components/recorder.py b/homeassistant/components/recorder.py
index a937a5a836b..488dfe9272f 100644
--- a/homeassistant/components/recorder.py
+++ b/homeassistant/components/recorder.py
@@ -78,6 +78,8 @@ def row_to_event(row):
 
 
 def run_information(point_in_time=None):
+    """ Returns information about current run or the run that
+        covers point_in_time. """
     _verify_instance()
 
     if point_in_time is None:
@@ -131,6 +133,8 @@ class RecorderRun(object):
 
     @property
     def where_after_start_run(self):
+        """ Returns SQL WHERE clause to select rows
+            created after the start of the run. """
         return "created >= {} ".format(_adapt_datetime(self.start))
 
     @property