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-rw-r--r--Doc/c-api/sys.rst10
1 files changed, 10 insertions, 0 deletions
diff --git a/Doc/c-api/sys.rst b/Doc/c-api/sys.rst
index 9ba6496..f3cde8c 100644
--- a/Doc/c-api/sys.rst
+++ b/Doc/c-api/sys.rst
@@ -5,6 +5,16 @@
Operating System Utilities
==========================
+.. c:function:: PyObject* PyOS_FSPath(PyObject *path)
+
+ Return the file system representation for *path*. If the object is a
+ :class:`str` or :class:`bytes` object, then its reference count is
+ incremented. If the object implements the :class:`os.PathLike` interface,
+ then ``type(path).__fspath__()`` is returned. Otherwise :exc:`TypeError` is
+ raised and ``NULL`` is returned.
+
+ .. versionadded:: 3.6
+
.. c:function:: int Py_FdIsInteractive(FILE *fp, const char *filename)