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-rw-r--r--Doc/library/os.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 4dbeac3..2a8325a 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -401,6 +401,12 @@ by file descriptors.
:func:`fdopen`, use its :meth:`close` method.
+.. function:: device_encoding(fd)
+
+ Return a string describing the encoding of the device associated with *fd*
+ if it is connected to a terminal; else return :const:`None`.
+
+
.. function:: dup(fd)
Return a duplicate of file descriptor *fd*. Availability: Macintosh, Unix,