Add missing docstrings for BaseServerQuerier

valve/source/__init__.py

@@ -13,6 +13,12 @@ class NoResponseError(Exception):
 
 
 class BaseServerQuerier(object):
+    """Base class for implementing source server queriers.
+
+    :ivar host: Host requests will be sent to.
+    :ivar port: Port number requests will be sent to.
+    :ivar timeout: How long to wait for a response to a request.
+    """
 
     def __init__(self, address, timeout=5.0):
         self.host = address[0]
@@ -24,11 +30,18 @@ def request(self, request):
         self.socket.sendto(request.encode(), (self.host, self.port))
 
     def get_response(self):
+        """Wait for a response to a request.
+
+        :raises NoResponseError: If the configured :attr:`timeout` is
+            reached before a response is received.
+
+        :returns: The raw response as a :class:`bytes`.
+        """
         ready = select.select([self.socket], [], [], self.timeout)
         if not ready[0]:
             raise NoResponseError("Timed out waiting for response")
         try:
             data = ready[0][0].recv(1400)
         except socket.error as exc:
-            raise NoResponseError(exc)
+            raise NoResponseError(exc) from exc
         return data