Newsfragment + doc.

python-trio · Dec 23, 2021 · 885b888 · 885b888
1 parent 506d7c8
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diff --git a/docs/source/reference-core.rst b/docs/source/reference-core.rst
@@ -1020,6 +1020,12 @@ Example output (yours may differ slightly):
    request 0: Helper task b finished
    request 0: Request received finished
 
+You can change the current :class:`contextvars.Context` a task is running
+in with a helper context manager.
+
+.. autofunction:: change_context
+    :async-with:
+
 For more information, read the
 `contextvar docs <https://docs.python.org/3.7/library/contextvars.html>`__.
 

diff --git a/newsfragments/2086.feature.rst b/newsfragments/2086.feature.rst
@@ -0,0 +1,2 @@
+Add an API to allow changing the current Context a task is running
+in.
diff --git a/trio/_core/_context.py b/trio/_core/_context.py
@@ -6,7 +6,7 @@
 
 
 @asynccontextmanager
-async def change_context(context: Context):
+async def change_context(context):
     """Asynchronous context manager to change the :class:`contextvars.Context`
     for the current task.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		Add an API to allow changing the current Context a task is running
		in.