1 files changed, 2 insertions, 1 deletions
diff --git a/tracing.py b/tracing.py
index efef8e2..4c7eecb 100644
--- a/tracing.py
+++ b/tracing.py
@@ -74,5 +74,6 @@ def trace(msg, *args):
                     break
         if log_it:
             filename = os.path.basename(filename)
-            msg = msg % args
+            if args:
+                msg = msg % args
             logging.debug('%s:%s:%s: %s' % (filename, lineno, funcname, msg))