Replace broken example code with correct simpler code. (GH-25162)
The open() was missing 'w' to indicate it was in a write-mode.
Even then, the open().close() operation was distracting because
it is an unusual way to "touch" as file. Using os.remove()
instead is simpler and less distracting.
diff --git a/Doc/howto/descriptor.rst b/Doc/howto/descriptor.rst
index 819401e..bf026f4 100644
--- a/Doc/howto/descriptor.rst
+++ b/Doc/howto/descriptor.rst
@@ -115,9 +115,9 @@
20
>>> g.size # The games directory has three files
3
- >>> open('games/newfile').close() # Add a fourth file to the directory
+ >>> os.remove('games/chess') # Delete a game
>>> g.size # File count is automatically updated
- 4
+ 2
Besides showing how descriptors can run computations, this example also
reveals the purpose of the parameters to :meth:`__get__`. The *self*