http://hg.python.org/cpython/rev/0f6bdc2b0e38 changeset: 90517:0f6bdc2b0e38 branch: 2.7 parent: 90512:8ee76e1b5aa6 user: Tim Golden <mail@timgolden.me.uk> date: Tue Apr 29 16:11:18 2014 +0100 summary: Issue #19630 Emphasise that the file parameter to marshal.dump must be a real file object files: Doc/library/marshal.rst | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/Doc/library/marshal.rst b/Doc/library/marshal.rst --- a/Doc/library/marshal.rst +++ b/Doc/library/marshal.rst @@ -66,8 +66,9 @@ .. function:: dump(value, file[, version]) Write the value on the open file. The value must be a supported type. The - file must be an open file object such as ``sys.stdout`` or returned by - :func:`open` or :func:`os.popen`. It must be opened in binary mode (``'wb'`` + file must be a open file object such as ``sys.stdout`` or returned by + :func:`open` or :func:`os.popen`. It may not be a wrapper such as + TemporaryFile on Windows. It must be opened in binary mode (``'wb'`` or ``'w+b'``). If the value has (or contains an object that has) an unsupported type, a -- Repository URL: http://hg.python.org/cpython