Change float.__str__() and complex.__str__() to return
unicode objects.
diff --git a/Include/pyport.h b/Include/pyport.h
index fb57ace..92ce3ae 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -107,6 +107,7 @@
  *     PyString_FromFormat
  *     PyErr_Format
  *     PyString_FromFormatV
+ *     PyUnicode_FromFormatV
  *
  * Lower-level uses require that you interpolate the correct format modifier
  * yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for