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-rw-r--r--Doc/library/os.rst2
-rw-r--r--Modules/posixmodule.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 679cedb..fe03096 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -744,7 +744,7 @@ as internal buffering of data.
by *how*: :const:`SEEK_SET` or ``0`` to set the position relative to the
beginning of the file; :const:`SEEK_CUR` or ``1`` to set it relative to the
current position; :const:`SEEK_END` or ``2`` to set it relative to the end of
- the file.
+ the file. Return the new cursor position in bytes, starting from the beginning.
Availability: Unix, Windows.
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index c1b300a..21a6cef 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -6667,7 +6667,8 @@ posix_dup2(PyObject *self, PyObject *args)
PyDoc_STRVAR(posix_lseek__doc__,
"lseek(fd, pos, how) -> newpos\n\n\
-Set the current position of a file descriptor.");
+Set the current position of a file descriptor.\n\
+Return the new cursor position in bytes, starting from the beginning.");
static PyObject *
posix_lseek(PyObject *self, PyObject *args)