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@zariiii9003 zariiii9003 released this 09 Apr 18:16
v4.2.0rc0
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This is a pre-release of version 4.2.0, which will be the last version to support Python 3.7.

Installation

pip install python-can==4.2.0rc0

Breaking Changes

  • The can.BitTiming class was replaced with the new
    can.BitTiming and can.BitTimingFd classes (#1468, #1515).
    Early adopters of can.BitTiming will need to update their code. Check the
    documentation for more information.
    Currently, the following interfaces support the new classes:

    There are open pull requests for kvaser (#1510), slcan (#1512) and usb2can (#1511). Testing
    and reviewing of these open PRs would be most appreciated.

Features

IO

  • Add support for MF4 files (#1289).
  • Add support for version 2 TRC files and other TRC file enhancements (#1530).

Type Annotations

Interface Improvements

  • Add __del__ method to can.BusABC to automatically release resources (#1489).
  • pcan: Update PCAN Basic to 4.6.2.753 (#1481).
  • pcan: Use select instead of polling on Linux (#1410).
  • socketcan: Use ip link JSON output in find_available_interfaces (#1478).
  • socketcan: Enable SocketCAN interface tests in GitHub CI (#1484).
  • slcan: improve receiving performance (#1490).
  • usb2can: Stop using root logger (#1483).
  • usb2can: Faster channel detection on Windows (#1480).
  • vector: Only check sample point instead of tseg & sjw (#1486).
  • vector: add VN5611 hwtype (#1501).

Documentation

  • Add new section about related tools to documentation. Add a list of
    plugin interface packages (#1457).

Bug Fixes

  • Automatic type conversion for config values (#1498, #1499).
  • pcan: Fix Bus.__new__ for CAN-FD interfaces (#1458, #1460).
  • pcan: Fix Detection of Library on Windows on ARM (#1463).
  • socketcand: extended ID bug fixes (#1504, #1508).
  • vector: improve robustness against unknown HardwareType values (#1500, #1502).

Deprecations

  • The bustype parameter of can.Bus is deprecated and will be
    removed in version 5.0, use interface instead. (#1462).
  • The context parameter of can.Bus is deprecated and will be
    removed in version 5.0, use config_context instead. (#1474).
  • The bit_timing parameter of CantactBus is deprecated and will be
    removed in version 5.0, use timing instead. (#1468).
  • The bit_timing parameter of CANalystIIBus is deprecated and will be
    removed in version 5.0, use timing instead. (#1468).
  • The brs and log_errors parameters of NiXNETcanBus are deprecated
  • and will be removed in version 5.0. (#1520).

Miscellaneous

  • Use high resolution timer on Windows to improve
    timing precision for BroadcastManager (#1449).
  • Improve ThreadBasedCyclicSendTask timing (#1539).
  • Make code examples executable on Linux (#1452).
  • Fix CanFilter type annotation (#1456).
  • Fix The entry_points().get deprecation warning and improve
    type annotation of can.interfaces.BACKENDS (#1465).
  • Add ignore_config parameter to can.Bus (#1474).
  • Add deprecation period to utility function deprecated_args_alias (#1477).
  • Add ruff to the CI system (#1551)
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