Fix subtle bug detected by Jim F.

336c6992 · Guido van Rossum · dfd9cb1e · 336c6992
Kaydet (Commit) 336c6992 authored Eyl 30, 1996 tarafından Guido van Rossum
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abstract.c Objects/abstract.c +1 -1

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--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -1032,7 +1032,7 @@ PyObject_CallMethod(va_alist) va_dcl
      return 0;
    }

-  if(format)
+  if(format && *format)
    args = Py_VaBuildValue(format, va);
  else
    args = PyTuple_New(0);