#9957: document that SpooledTemporaryFile.truncate does not take size arg

diff --git a/Doc/library/tempfile.rst b/Doc/library/tempfile.rst
index 936f06a0cafca01a1a943544ee97c7b423edaa87..ada647daa31f5070bb32e4d5560b887fafc04ab9 100644 (file)
--- a/Doc/library/tempfile.rst
+++ b/Doc/library/tempfile.rst
@@ -86,7 +86,8 @@ The module defines the following user-callable functions:
    data is spooled in memory until the file size exceeds *max_size*, or
    until the file's :func:`fileno` method is called, at which point the
    contents are written to disk and operation proceeds as with
-   :func:`TemporaryFile`.
+   :func:`TemporaryFile`.  Also, it's ``truncate`` method does not
+   accept a ``size`` argument.
 
    The resulting file has one additional method, :func:`rollover`, which
    causes the file to roll over to an on-disk file regardless of its size.