Changes in IPython kernel

5.1

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.

  • Flush after sending replies (PR #390)

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 (PR #356)

  • Fix classifiers to indicate dropped Python 2 support (PR #354)

  • Remove some dead code (PR #355)

  • Support rich-media responses in inspect_requests (tooltips) (PR #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 (PR #323)

  • Update release process in CONTRIBUTING.md (PR #339)

4.10

4.10 on GitHub

  • Fix compatibility with IPython 7.0 (PR #348)

  • Fix compatibility in cases where sys.stdout can be None (PR #344)

4.9

4.9.0

4.9.0 on GitHub

  • Python 3.3 is no longer supported (PR #336)

  • Flush stdout/stderr in KernelApp before replacing (PR #314)

  • Allow preserving stdout and stderr in KernelApp (PR #315)

  • Override writable method on OutStream (PR #316)

  • Add metadata to help display matplotlib figures legibly (PR #336)

4.8

4.8.2

4.8.2 on GitHub

  • Fix compatibility issue with qt eventloop and pyzmq 17 (PR #307).

4.8.1

4.8.1 on GitHub

  • set zmq.ROUTER_HANDOVER socket option when available to workaround libzmq reconnect bug (PR #300).

  • Fix sdists including absolute paths for kernelspec files, which prevented installation from sdist on Windows (PR #306).

4.8.0

4.8.0 on GitHub

  • Cleanly shutdown integrated event loops when shutting down the kernel. (PR #290)

  • %gui qt now uses Qt 5 by default rather than Qt 4, following a similar change in terminal IPython. (PR #293)

  • Fix event loop integration for asyncio when run with Tornado 5, which uses asyncio where available. (PR #296)

4.7

4.7.0

4.7.0 on GitHub

  • Add event loop integration for 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 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 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 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 IOPubThread. This solves the problem of requiring 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: - ipykernel.find_connection_file() is deprecated. Use 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.