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Changes in IPython kernel

5.3

5.3.0

5.3.0 Adds support for Trio event loops and has some bug fixes.

5.2

5.2.1

5.2.0

5.2.0 Includes several bugfixes and internal logic improvements.

5.1

5.1.4

5.1.4 Includes a few bugfixes, especially for compatibility with Python 3.8 on Windows.

5.1.3

5.1.3 Includes several bugfixes and internal logic improvements.

  • Fix comm shutdown behavior by adding a deleting option to close which can be set to prevent registering new comm channels during shutdown (:ghpull: 433, :ghpull: 435)
  • Fix Heartbeat._bind_socket to return on the first bind (:ghpull: 431)
  • Moved InProcessKernelClient.flush to DummySocket (:gphull: 437)
  • Don't redirect stdout if nose machinery is not present (:ghpull: 427)
  • Rename _asyncio.py to _asyncio_utils.py to avoid name conflicts on Python 3.6+ (:ghpull: 426)
  • Only generate kernelspec when installing or building wheel (:ghpull: 425)
  • Fix priority ordering of control-channel messages in some cases (:ghpull:`443`)

5.1.2

5.1.2 fixes some socket-binding race conditions that caused testing failures in nbconvert.

  • Fix socket-binding race conditions (:ghpull: 412, :ghpull: 419)
  • Add a no-op flush method to DummySocket and comply with stream API (:ghpull: 405)
  • Update kernel version to indicate kernel v5.3 support (:ghpull: 394)
  • Add testing for upcoming Python 3.8 and PEP 570 positional parameters
(:ghpull: 396, :ghpull: 408)

5.1.1

5.1.1 fixes a bug that caused cells to get stuck in a busy state.

5.1.0

5.1.0 fixes some important regressions in 5.0, especially on Windows.

5.1.0 on GitHub

  • Fix message-ordering bug that could result in out-of-order executions, especially on Windows (:ghpull:`356`)
  • Fix classifiers to indicate dropped Python 2 support (:ghpull:`354`)
  • Remove some dead code (:ghpull:`355`)
  • Support rich-media responses in inspect_requests (tooltips) (:ghpull:`361`)

5.0

5.0.0

5.0.0 on GitHub

  • Drop support for Python 2. ipykernel 5.0 requires Python >= 3.4
  • Add support for IPython's asynchronous code execution (:ghpull:`323`)
  • Update release process in CONTRIBUTING.md (:ghpull:`339`)

4.10

4.10 on GitHub

4.9

4.9.0

4.9.0 on GitHub

4.8

4.8.2

4.8.2 on GitHub

  • Fix compatibility issue with qt eventloop and pyzmq 17 (:ghpull:`307`).

4.8.1

4.8.1 on GitHub

  • set zmq.ROUTER_HANDOVER socket option when available to workaround libzmq reconnect bug (:ghpull:`300`).
  • Fix sdists including absolute paths for kernelspec files, which prevented installation from sdist on Windows (:ghpull:`306`).

4.8.0

4.8.0 on GitHub

  • Cleanly shutdown integrated event loops when shutting down the kernel. (:ghpull:`290`)
  • %gui qt now uses Qt 5 by default rather than Qt 4, following a similar change in terminal IPython. (:ghpull:`293`)
  • Fix event loop integration for :mod:`asyncio` when run with Tornado 5, which uses asyncio where available. (:ghpull:`296`)

4.7

4.7.0

4.7.0 on GitHub

  • Add event loop integration for :mod:`asyncio`.
  • Use the new IPython completer API.
  • Add support for displaying GIF images (mimetype image/gif).
  • Allow the kernel to be interrupted without killing the Qt console.
  • Fix is_complete response with cell magics.
  • Clean up encoding of bytes objects.
  • Clean up help links to use https and improve display titles.
  • Clean up ioloop handling in preparation for tornado 5.

4.6

4.6.1

4.6.1 on GitHub

  • Fix eventloop-integration bug preventing Qt windows/widgets from displaying with ipykernel 4.6.0 and IPython ≥ 5.2.
  • Avoid deprecation warnings about naive datetimes when working with jupyter_client ≥ 5.0.

4.6.0

4.6.0 on GitHub

  • Add to API DisplayPublisher.publish two new fully backward-compatible keyword-args:

    • update: bool
    • transient: dict

  • Support new transient key in display_data messages spec for publish. For a display data message, transient contains data that shouldn't be persisted to files or documents. Add a display_id to this transient dict by display(obj, display_id=...)

  • Add ipykernel_launcher module which removes the current working directory from sys.path before launching the kernel. This helps to reduce the cases where the kernel won't start because there's a random.py (or similar) module in the current working directory.

  • Add busy/idle messages on IOPub during processing of aborted requests

  • Add active event loop setting to GUI, which enables the correct response to IPython's is_event_loop_running_xxx

  • Include IPython kernelspec in wheels to reduce reliance on "native kernel spec" in jupyter_client

  • Modify OutStream to inherit from TextIOBase instead of object to improve API support and error reporting

  • Fix IPython kernel death messages at start, such as "Kernel Restarting..." and "Kernel appears to have died", when parent-poller handles PID 1

  • Various bugfixes

4.5

4.5.2

4.5.2 on GitHub

  • Fix bug when instantiating Comms outside of the IPython kernel (introduced in 4.5.1).

4.5.1

4.5.1 on GitHub

  • Add missing stream parameter to overridden :func:`getpass`
  • Remove locks from iopub thread, which could cause deadlocks during debugging
  • Fix regression where KeyboardInterrupt was treated as an aborted request, rather than an error
  • Allow instantiating Comms outside of the IPython kernel

4.5.0

4.5 on GitHub

  • Use figure.dpi instead of savefig.dpi to set DPI for inline figures
  • Support ipympl matplotlib backend (requires IPython update as well to fully work)
  • Various bugfixes, including fixes for output coming from threads, and :func:`input` when called with non-string prompts, which stdlib allows.

4.4

4.4.1

4.4.1 on GitHub

  • Fix circular import of matplotlib on Python 2 caused by the inline backend changes in 4.4.0.

4.4.0

4.4.0 on GitHub

  • Use MPLBACKEND environment variable to tell matplotlib >= 1.5 use use the inline backend by default. This is only done if MPLBACKEND is not already set and no backend has been explicitly loaded, so setting MPLBACKEND=Qt4Agg or calling %matplotlib notebook or matplotlib.use('Agg') will take precedence.
  • Fixes for logging problems caused by 4.3, where logging could go to the terminal instead of the notebook.
  • Add --sys-prefix and --profile arguments to :command:`ipython kernel install`
  • Allow Comm (Widget) messages to be sent from background threads.
  • Select inline matplotlib backend by default if %matplotlib magic or matplotlib.use() are not called explicitly (for matplotlib >= 1.5).
  • Fix some longstanding minor deviations from the message protocol (missing status: ok in a few replies, connect_reply format).
  • Remove calls to NoOpContext from IPython, deprecated in 5.0.

4.3

4.3.2

  • Use a nonempty dummy session key for inprocess kernels to avoid security warnings.

4.3.1

  • Fix Windows Python 3.5 incompatibility caused by faulthandler patch in 4.3

4.3.0

4.3.0 on GitHub

  • Publish all IO in a thread, via :class:`IOPubThread`. This solves the problem of requiring :meth:`sys.stdout.flush` to be called in the notebook to produce output promptly during long-running cells.
  • Remove references to outdated IPython guiref in kernel banner.
  • Patch faulthandler to use sys.__stderr__ instead of forwarded sys.stderr, which has no fileno when forwarded.
  • Deprecate some vestiges of the Big Split: - :func:`ipykernel.find_connection_file` is deprecated. Use :func:`jupyter_client.find_connection_file` instead. - Various pieces of code specific to IPython parallel are deprecated in ipykernel and moved to ipyparallel.

4.2

4.2.2

4.2.2 on GitHub

  • Don't show interactive debugging info when kernel crashes
  • Fix handling of numerical types in json_clean
  • Testing fixes for output capturing

4.2.1

4.2.1 on GitHub

  • Fix default display name back to "Python X" instead of "pythonX"

4.2.0

4.2 on GitHub

  • Support sending a full message in initial opening of comms (metadata, buffers were not previously allowed)
  • When using ipython kernel install --name to install the IPython kernelspec, default display-name to the same value as --name.

4.1

4.1.1

4.1.1 on GitHub

  • Fix missing ipykernel.__version__ on Python 2.
  • Fix missing target_name when opening comms from the frontend.

4.1.0

4.1 on GitHub

  • add ipython kernel install entrypoint for installing the IPython kernelspec
  • provisional implementation of comm_info request/reply for msgspec v5.1

4.0

4.0 on GitHub

4.0 is the first release of ipykernel as a standalone package.