bpo-46752: Slight improvements to TaskGroup API (GH-31398)

* Remove task group names (for now)

We're not sure that they are needed, and once in the code
we would never be able to get rid of them.

Yury wrote:

> Ideally, there should be a way for someone to build a "trace"
> of taskgroups/task leading to the current running task.
> We could do that using contextvars, but I'm not sure we should
> do that in 3.11.

* Pass optional name on to task in create_task()

* Remove a bunch of unused stuff

1 files changed, 13 insertions, 6 deletions

diff --git a/Lib/test/test_asyncio/test_taskgroups.py b/Lib/test/test_asyncio/test_taskgroups.py
index ea6ee2e..aab1fd1 100644
--- a/Lib/test/test_asyncio/test_taskgroups.py
+++ b/Lib/test/test_asyncio/test_taskgroups.py
@@ -368,10 +368,10 @@ class TestTaskGroup(unittest.IsolatedAsyncioTestCase):
             raise ValueError(t)
 
         async def runner():
-            async with taskgroups.TaskGroup(name='g1') as g1:
+            async with taskgroups.TaskGroup() as g1:
                 g1.create_task(crash_after(0.1))
 
-                async with taskgroups.TaskGroup(name='g2') as g2:
+                async with taskgroups.TaskGroup() as g2:
                     g2.create_task(crash_after(0.2))
 
         r = asyncio.create_task(runner())
@@ -387,10 +387,10 @@ class TestTaskGroup(unittest.IsolatedAsyncioTestCase):
             raise ValueError(t)
 
         async def runner():
-            async with taskgroups.TaskGroup(name='g1') as g1:
+            async with taskgroups.TaskGroup() as g1:
                 g1.create_task(crash_after(10))
 
-                async with taskgroups.TaskGroup(name='g2') as g2:
+                async with taskgroups.TaskGroup() as g2:
                     g2.create_task(crash_after(0.1))
 
         r = asyncio.create_task(runner())
@@ -407,7 +407,7 @@ class TestTaskGroup(unittest.IsolatedAsyncioTestCase):
             1 / 0
 
         async def runner():
-            async with taskgroups.TaskGroup(name='g1') as g1:
+            async with taskgroups.TaskGroup() as g1:
                 g1.create_task(crash_soon())
                 try:
                     await asyncio.sleep(10)
@@ -430,7 +430,7 @@ class TestTaskGroup(unittest.IsolatedAsyncioTestCase):
             1 / 0
 
         async def nested_runner():
-            async with taskgroups.TaskGroup(name='g1') as g1:
+            async with taskgroups.TaskGroup() as g1:
                 g1.create_task(crash_soon())
                 try:
                     await asyncio.sleep(10)
@@ -692,3 +692,10 @@ class TestTaskGroup(unittest.IsolatedAsyncioTestCase):
 
         self.assertEqual(get_error_types(cm.exception), {ZeroDivisionError})
         self.assertGreaterEqual(nhydras, 10)
+
+    async def test_taskgroup_task_name(self):
+        async def coro():
+            await asyncio.sleep(0)
+        async with taskgroups.TaskGroup() as g:
+            t = g.create_task(coro(), name="yolo")
+            self.assertEqual(t.get_name(), "yolo")