Merge develop into master for release 2.2.0

.appveyor.yml

@@ -0,0 +1,31 @@
+environment:
+  matrix:
+
+    # For Python versions available on Appveyor, see
+    # http://www.appveyor.com/docs/installed-software#python
+
+    - PYTHON: "C:\\Python27"
+    - PYTHON: "C:\\Python34"
+    - PYTHON: "C:\\Python35"
+    - PYTHON: "C:\\Python36"
+    - PYTHON: "C:\\Python27-x64"
+    - PYTHON: "C:\\Python34-x64"
+    - PYTHON: "C:\\Python35-x64"
+    - PYTHON: "C:\\Python36-x64"
+
+    # Python 3.3 has reached EOL
+
+install:
+  # Prepend Python installation to PATH
+  - set PATH=%PYTHON_INSTALL%;%PATH%
+
+  # Prepend Python scripts to PATH (e.g. py.test)
+  - set PATH=%PYTHON_INSTALL%\\Scripts;%PATH%
+
+  # We need to install the python-can library itself
+  - "python -m pip install .[test]"
+
+build: off
+
+test_script:
+  - "pytest -v --timeout=300"

.gitignore

@@ -46,6 +46,7 @@ nosetests.xml
 coverage.xml
 *,cover
 .hypothesis/
+test.*
 
 # Translations
 *.mo

.travis.yml

@@ -3,15 +3,15 @@ language: python
 python:
   # CPython:
   - "2.7"
-  - "3.3"
+  # Python 3.3 has reached EOL and pytest fails there
   - "3.4"
   - "3.5"
   - "3.6"
-  - "3.7-dev" # TODO: change to "3.7" once it gets released
+  - "3.7-dev" # TODO: change to "3.7" once it is supported by travis-ci
   - "nightly"
   # PyPy:
   - "pypy"
-  - "pypy3"
+  - "pypy3.5"
 
 os:
   - linux   # Linux is officially supported and we test the library under
@@ -37,14 +37,20 @@ matrix:
     - os: osx
       python: "nightly"
 
-  # allow all nighly builds to fail, since these python versions might be unstable
-  # we do not allow dev builds to fail, since these builds are stable enough
   allow_failures:
+    # allow all nighly builds to fail, since these python versions might be unstable
     - python: "nightly"
 
+    # we do not allow dev builds to fail, since these builds are considered stable enough
+
 install:
-  - travis_retry pip install .
-  - travis_retry pip install -r requirements.txt
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo bash test/open_vcan.sh ; fi
+  - travis_retry pip install .[test]
+  - travis_retry pip install sphinx
 
 script:
-  - py.test -v
+  - pytest -v --timeout=300
+  # Build Docs with Sphinx
+  #
+  # -a Write all files
+  - if [[ "$TRAVIS_PYTHON_VERSION" == "3.6" ]]; then python -m sphinx -an doc build; fi

CHANGELOG.txt

@@ -1,3 +1,16 @@
+
+Version 2.2.0 (2018-06-30)
+=====
+
+* Fallback message filtering implemented in Python for interfaces that don't offer better accelerated mechanism.
+* SocketCAN interfaces have been merged (Now use `socketcan` instead of either `socketcan_native` and `socketcan_ctypes`),
+  this is now completely transparent for the library user.
+* automatic detection of available configs/channels in supported interfaces.
+* Added synchronized (thread-safe) Bus variant.
+* context manager support for the Bus class.
+* Dropped support for Python 3.3 (officially reached end-of-life in Sept. 2017)
+* Deprecated the old `CAN` module, please use the newer `can` entry point (will be removed in version 2.4)
+
 Version 2.1.0 (2018-02-17)
 =====
 

MANIFEST.in

@@ -1,2 +1,2 @@
 include *.txt
-recursive-include doc *.rst
+recursive-include doc *.rst

README.rst

@@ -1,19 +1,23 @@
 python-can
 ==========
 
-|release| |docs| |build|
+|release| |docs| |build_travis| |build_appveyor|
 
 .. |release| image:: https://img.shields.io/pypi/v/python-can.svg
    :target: https://pypi.python.org/pypi/python-can/
-   :alt: Latest Version
+   :alt: Latest Version on PyPi
 
 .. |docs| image:: https://readthedocs.org/projects/python-can/badge/?version=stable
    :target: https://python-can.readthedocs.io/en/stable/
-   :alt: Documentation Status
+   :alt: Documentation build Status
 
-.. |build| image:: https://travis-ci.org/hardbyte/python-can.svg?branch=develop
+.. |build_travis| image:: https://travis-ci.org/hardbyte/python-can.svg?branch=develop
    :target: https://travis-ci.org/hardbyte/python-can/branches
-   :alt: CI Server for develop branch
+   :alt: Travis CI Server for develop branch
+
+.. |build_appveyor| image:: https://ci.appveyor.com/api/projects/status/github/hardbyte/python-can?branch=develop&svg=true
+   :target: https://ci.appveyor.com/project/hardbyte/python-can/history
+   :alt: AppVeyor CI Server for develop branch
 
 
 The **C**\ ontroller **A**\ rea **N**\ etwork is a bus standard designed
@@ -26,7 +30,7 @@ Python developers; providing `common abstractions to
 different hardware devices`, and a suite of utilities for sending and receiving
 messages on a can bus.
 
-The library supports Python 2.7, Python 3.3+ as well as PyPy and runs on Mac, Linux and Windows.
+The library supports Python 2.7, Python 3.4+ as well as PyPy 2 & 3 and runs on Mac, Linux and Windows.
 
 You can find more information in the documentation, online at
 `python-can.readthedocs.org <https://python-can.readthedocs.org/en/stable/>`__.

can/CAN.py

@@ -1,9 +1,17 @@
+#!/usr/bin/env python
+# coding: utf-8
+
 """
 This module was once the core of python-can, containing
 implementations of all the major classes in the library, now
-however all functionality has been refactored out. This api
-is left intact for version 2.0 to aide with migration.
+however all functionality has been refactored out. This API
+is left intact for version 2.0 to 2.3 to aide with migration.
+
+WARNING:
+This module is deprecated an will get removed in version 2.4.
+Please use `import can` instead.
 """
+
 from __future__ import absolute_import
 
 from can.message import Message
@@ -14,4 +22,11 @@
 import logging
 
 log = logging.getLogger('can')
-log.info("Loading python-can via the old CAN api")
+
+# See #267
+# Version 2.0 - 2.1:    Log a Debug message
+# Version 2.2:          Log a Warning
+# Version 2.3:          Log an Error
+# Version 2.4:          Remove the module
+log.warning('Loading python-can via the old "CAN" API is deprecated since v2.0 an will get removed in v2.4. '
+            'Please use `import can` instead.')

can/__init__.py

@@ -1,37 +1,45 @@
+#!/usr/bin/env python
+# coding: utf-8
+
 """
-can is an object-orient Controller Area Network interface module.
+``can`` is an object-orient Controller Area Network (CAN) interface module.
 """
+
 from __future__ import absolute_import
 
 import logging
 
-__version__ = "2.1.0"
+__version__ = "2.2.0"
 
 log = logging.getLogger('can')
 
 rc = dict()
 
 
 class CanError(IOError):
+    """Indicates an error with the CAN network.
+
+    """
     pass
 
-from can.listener import Listener, BufferedReader, RedirectReader
+from .listener import Listener, BufferedReader, RedirectReader
 
-from can.io import Logger, Printer, LogReader
-from can.io import ASCWriter, ASCReader
-from can.io import BLFReader, BLFWriter
-from can.io import CanutilsLogReader, CanutilsLogWriter
-from can.io import CSVWriter
-from can.io import SqliteWriter, SqliteReader
+from .io import Logger, Printer, LogReader, MessageSync
+from .io import ASCWriter, ASCReader
+from .io import BLFReader, BLFWriter
+from .io import CanutilsLogReader, CanutilsLogWriter
+from .io import CSVWriter, CSVReader
+from .io import SqliteWriter, SqliteReader
 
-from can.util import set_logging_level
+from .util import set_logging_level
 
-from can.message import Message
-from can.bus import BusABC
-from can.notifier import Notifier
-from can.interfaces import VALID_INTERFACES
+from .message import Message
+from .bus import BusABC
+from .thread_safe_bus import ThreadSafeBus
+from .notifier import Notifier
+from .interfaces import VALID_INTERFACES
 from . import interface
-from .interface import Bus
+from .interface import Bus, detect_available_configs
 
 from can.broadcastmanager import send_periodic, \
     CyclicSendTaskABC, \

can/broadcastmanager.py

@@ -1,18 +1,21 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
+# coding: utf-8
+
 """
 Exposes several methods for transmitting cyclic messages.
-20/09/13
+
+The main entry point to these classes should be through
+:meth:`can.BusABC.send_periodic`.
 """
 
-import can
 import abc
 import logging
-import sched
+
 import threading
 import time
 
+
 log = logging.getLogger('can.bcm')
-log.debug("Loading base broadcast manager functionality")
 
 
 class CyclicTask(object):
@@ -38,6 +41,7 @@ def __init__(self, message, period):
         """
         self.message = message
         self.can_id = message.arbitration_id
+        self.arbitration_id = message.arbitration_id
         self.period = period
         super(CyclicSendTaskABC, self).__init__()
 
@@ -72,7 +76,7 @@ def modify_data(self, message):
         """Update the contents of this periodically sent message without altering
         the timing.
 
-        :param message: The :class:`~can.Message` with new :attr:`Message.data`.
+        :param message: The :class:`~can.Message` with new :attr:`can.Message.data`.
         """
         self.message = message
 
@@ -130,9 +134,13 @@ def _run(self):
             time.sleep(max(0.0, delay))
 
 
-def send_periodic(bus, message, period):
-    """
-    Send a message every `period` seconds on the given channel.
+def send_periodic(bus, message, period, *args, **kwargs):
+    """Send a message every `period` seconds on the given channel.
 
+    :param bus: The :class:`can.BusABC` to transmit to.
+    :param message: The :class:`can.Message` instance to periodically send
+    :return: A started task instance
     """
-    return can.interface.CyclicSendTask(bus, message, period)
+    log.warning("The function `can.send_periodic` is deprecated and will " +
+             "be removed in version 2.3. Please use `can.Bus.send_periodic` instead.")
+    return bus.send_periodic(message, period, *args, **kwargs)