Clarify mmap.close method behavior. Addresses issue #18815
Patch contributed by Anoop Thomas Mathew.
diff --git a/Doc/library/mmap.rst b/Doc/library/mmap.rst
index 58d00c8..ac1963f 100644
--- a/Doc/library/mmap.rst
+++ b/Doc/library/mmap.rst
@@ -152,8 +152,9 @@
.. method:: close()
- Close the file. Subsequent calls to other methods of the object will
- result in an exception being raised.
+ Closes the mmap. Subsequent calls to other methods of the object will
+ result in a ValueError exception being raised. This will not close
+ the open file.
.. method:: find(string[, start[, end]])