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62 lines
1.4 KiB
Python
62 lines
1.4 KiB
Python
"""Comm package.
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Copyright (c) IPython Development Team.
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Distributed under the terms of the Modified BSD License.
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This package provides a way to register a Kernel Comm implementation, as per
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the Jupyter kernel protocol.
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It also provides a base Comm implementation and a default CommManager for the IPython case.
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"""
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from __future__ import annotations
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from typing import Any
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from .base_comm import BaseComm, BuffersType, CommManager, MaybeDict
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__version__ = "0.2.3"
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__all__ = [
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"__version__",
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"create_comm",
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"get_comm_manager",
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]
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_comm_manager = None
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class DummyComm(BaseComm):
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def publish_msg(
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self,
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msg_type: str,
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data: MaybeDict = None,
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metadata: MaybeDict = None,
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buffers: BuffersType = None,
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**keys: Any,
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) -> None:
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pass
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def _create_comm(*args: Any, **kwargs: Any) -> BaseComm:
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"""Create a Comm.
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This method is intended to be replaced, so that it returns your Comm instance.
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"""
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return DummyComm(*args, **kwargs)
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def _get_comm_manager() -> CommManager:
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"""Get the current Comm manager, creates one if there is none.
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This method is intended to be replaced if needed (if you want to manage multiple CommManagers).
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"""
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global _comm_manager # noqa: PLW0603
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if _comm_manager is None:
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_comm_manager = CommManager()
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return _comm_manager
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create_comm = _create_comm
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get_comm_manager = _get_comm_manager
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