Update doc to use contextlib2.nullcontext

atugushev · atugushev · commit 18786992bb0b · 2019-10-19T15:09:37.000+07:00
nullcontext has been backported in contextlib2==0.6.0
diff --git a/doc/en/example/parametrize.rst b/doc/en/example/parametrize.rst
@@ -678,4 +678,4 @@ Or, if desired, you can ``pip install contextlib2`` and use:
 
 .. code-block:: python
 
-    from contextlib2 import ExitStack as does_not_raise
+    from contextlib2 import nullcontext as does_not_raise

Original file line number	Diff line number	Diff line change
@@ -678,4 +678,4 @@ Or, if desired, you can ``pip install contextlib2`` and use:
`678`	`678`
`679`	`679`	`.. code-block:: python`
`680`	`680`
`681`		`- from contextlib2 import ExitStack as does_not_raise`
	`681`	`+ from contextlib2 import nullcontext as does_not_raise`