Bump furo from 2022.6.21 to 2022.9.15 in /docs (#3277)

[etc/vim.git] / docs / the_black_code_style / future_style.md

diff --git a/docs/the_black_code_style/future_style.md b/docs/the_black_code_style/future_style.md
index fab4bca120e634f26ec79ef4de9412c2de6196fa..a17d9a1067346e1c3568aea4187b30ae4d8be416 100644 (file)
--- a/docs/the_black_code_style/future_style.md
+++ b/docs/the_black_code_style/future_style.md
@@ -34,6 +34,19 @@ with \
 Although when the target version is Python 3.9 or higher, _Black_ will use parentheses
 instead since they're allowed in Python 3.9 and higher.
 
+An alternative to consider if the backslashes in the above formatting are undesirable is
+to use {external:py:obj}`contextlib.ExitStack` to combine context managers in the
+following way:
+
+```python
+with contextlib.ExitStack() as exit_stack:
+    cm1 = exit_stack.enter_context(make_context_manager(1))
+    cm2 = exit_stack.enter_context(make_context_manager(2))
+    cm3 = exit_stack.enter_context(make_context_manager(3))
+    cm4 = exit_stack.enter_context(make_context_manager(4))
+    ...
+```
+
 ## Preview style
 
 Experimental, potentially disruptive style changes are gathered under the `--preview`