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Ensure IPython's HistoryManager threads don't leak #1361

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Ensure IPython's HistoryManager threads don't leak #1361

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Ensure IPython's HistoryManager threads don't leak
davidbrochart Feb 26, 2025
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Merge branch 'anyio' into history-manager
Carreau May 7, 2026
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Apply suggestion from @Carreau
Carreau May 7, 2026
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4 changes: 4 additions & 0 deletions tests/conftest.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
import zmq_anyio
from anyio import create_memory_object_stream, create_task_group, sleep
from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
from IPython.core.history import HistoryManager
from jupyter_client.session import Session

from ipykernel.ipkernel import IPythonKernel
Expand All @@ -34,6 +35,9 @@ def _garbage_collection(request):
except ModuleNotFoundError:
tracemalloc = None

# ensure we don't leak history managers
HistoryManager._max_inst = 2

pytestmark = pytest.mark.anyio


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