Fixed logic error in the python format checker.

diff --git a/babel/messages/checkers.py b/babel/messages/checkers.py
index ba5c30de86c1f13952384134e2c83a048f5019f3..d1f096d9f11afc0f5668076a42f3e8e970fdc79e 100644 (file)
--- a/babel/messages/checkers.py
+++ b/babel/messages/checkers.py
@@ -99,7 +99,7 @@ def _validate_format(format, alternative):
         result = []
         for match in PYTHON_FORMAT.finditer(string):
             name, format, typechar = match.groups()
-            if typechar == '%' and name is not None:
+            if typechar == '%' and name is None:
                 continue
             result.append((name, str(typechar)))
         return result