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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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5 changes: 5 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.asyncio
from anyio import create_memory_object_stream, create_task_group
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 @@ -29,6 +30,10 @@
tracemalloc = None


# ensure we don't leak history managers
HistoryManager._max_inst = 1


@pytest.fixture()
def anyio_backend():
return "asyncio"
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