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-rw-r--r--Misc/NEWS.d/next/Core and Builtins/2021-09-09-10-32-33.bpo-44219.WiYyjz.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-09-09-10-32-33.bpo-44219.WiYyjz.rst b/Misc/NEWS.d/next/Core and Builtins/2021-09-09-10-32-33.bpo-44219.WiYyjz.rst
index 12915ff..2abd816 100644
--- a/Misc/NEWS.d/next/Core and Builtins/2021-09-09-10-32-33.bpo-44219.WiYyjz.rst
+++ b/Misc/NEWS.d/next/Core and Builtins/2021-09-09-10-32-33.bpo-44219.WiYyjz.rst
@@ -1,4 +1,5 @@
Release the GIL while performing ``isatty`` system calls on arbitrary file
descriptors. In particular, this affects :func:`os.isatty`,
:func:`os.device_encoding` and :class:`io.TextIOWrapper`. By extension,
-:func:`io.open` in text mode is also affected.
+:func:`io.open` in text mode is also affected. This change solves
+a deadlock in :func:`os.isatty`. Patch by Vincent Michel in :issue:`44219`.