Issue #25496: Document compresslevel defaults to 9, by Hamza T Khan
diff --git a/Doc/library/tarfile.rst b/Doc/library/tarfile.rst
index 7a233c1..5fa4787 100644
--- a/Doc/library/tarfile.rst
+++ b/Doc/library/tarfile.rst
@@ -101,7 +101,7 @@
For modes ``'w:gz'``, ``'r:gz'``, ``'w:bz2'``, ``'r:bz2'``, ``'x:gz'``,
``'x:bz2'``, :func:`tarfile.open` accepts the keyword argument
- *compresslevel* to specify the compression level of the file.
+ *compresslevel* (default ``9``) to specify the compression level of the file.
For special purposes, there is a second format for *mode*:
``'filemode|[compression]'``. :func:`tarfile.open` will return a :class:`TarFile`