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-rw-r--r--Doc/library/tarfile.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/tarfile.rst b/Doc/library/tarfile.rst
index 60b9cd45f3..a8e1d56ad3 100644
--- a/Doc/library/tarfile.rst
+++ b/Doc/library/tarfile.rst
@@ -419,7 +419,9 @@ be finalized; only the internally used file object will be closed. See the
.. deprecated:: 2.7
The *exclude* parameter is deprecated, please use the *filter* parameter
- instead.
+ instead. For maximum portability, *filter* should be used as a keyword
+ argument rather than as a positional argument so that code won't be
+ affected when *exclude* is ultimately removed.
.. method:: TarFile.addfile(tarinfo, fileobj=None)