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-rw-r--r--Doc/reference/datamodel.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 25afc35..36bd71a 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1282,6 +1282,10 @@ Basic customization
The __format__ method of ``object`` itself raises a :exc:`TypeError`
if passed any non-empty string.
+ .. versionchanged:: 3.7
+ ``object.__format__(x, '')`` is now equivalent to ``str(x)`` rather
+ than ``format(str(self), '')``.
+
.. _richcmpfuncs:
.. method:: object.__lt__(self, other)