python: improve Query.count_messages docstring

[notmuch] / bindings / python / notmuch / filename.py

diff --git a/bindings/python/notmuch/filename.py b/bindings/python/notmuch/filename.py
index 51dae202d5d656963a977739ae053ef55b35adb5..469b6a5a97640a463d9d8625ff21078271107181 100644 (file)
--- a/bindings/python/notmuch/filename.py
+++ b/bindings/python/notmuch/filename.py
@@ -18,7 +18,7 @@ Copyright 2010 Sebastian Spaeth <Sebastian@SSpaeth.de>'
 """
 from ctypes import c_char_p
 from notmuch.globals import (nmlib, STATUS, NotmuchError,
-    NotmuchFilenamesP, NotmuchMessageP, _str, Python3StringMixIn)
+    NotmuchFilenamesP, NotmuchMessageP, Python3StringMixIn)
 
 
 class Filenames(Python3StringMixIn):
@@ -69,7 +69,7 @@ class Filenames(Python3StringMixIn):
              reference to it, so we can automatically delete the db object
              once all derived objects are dead.
         """
-        if files_p is None:
+        if not files_p:
             raise NotmuchError(STATUS.NULL_POINTER)
 
         self._files = files_p