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-rw-r--r--Doc/library/functions.rst7
1 files changed, 7 insertions, 0 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 48a832db60..3d2bb8efc9 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -168,6 +168,13 @@ are always available. They are listed here in alphabetical order.
If :func:`sys.breakpointhook` is not accessible, this function will
raise :exc:`RuntimeError`.
+ By default, the behavior of :func:`breakpoint` can be changed with
+ the :envvar:`PYTHONBREAKPOINT` environment variable.
+ See :func:`sys.breakpointhook` for usage details.
+
+ Note that this is not guaranteed if :func:`sys.breakpointhook`
+ has been replaced.
+
.. audit-event:: builtins.breakpoint breakpointhook breakpoint
.. versionadded:: 3.7