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Initial Update #13

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This PR sets up pyup.io on this repo and updates all dependencies at once, in a single branch.

Subsequent pull requests will update one dependency at a time, each in their own branch. If you want to start with that right away, simply close this PR.

Update numpydoc from 0.8.0 to 0.8.0.

The bot wasn't able to find a changelog for this release. Got an idea?

Links

Update pytest-pep8 from 1.0.6 to 1.0.6.

Changelog

1.0.6

----------

- fix tests to accomodate newer pep version which is more sensitive
to detecting "E265 too many spaces"

- add py34 to tox.ini

- clarified in setup.py that license is MIT

1.0.5

--------------

- use pytest-2.4.2 node.add_marker() API for adding "pep8" marker

1.0.4

---------------------------------

- fix issue2:  make pep8 interoperate with --strict runs

1.0.3

----------------------------------------------

- added pep8maxlinelength ini setting to configure the maximum allowed
line length.
- add tox.ini and test_pep8.py to distribution

1.0.2

----------------------------------------------

- fix a parsing bug -  is now recognized as
as comment and ALL will now be recognized 
even if other codes are specified (nonsensically)

1.0.1

----------------------------------------------

- add pytest-cache dep to setup.py

1.0

----------------------------------------------

- extend pep8ignore to allow lines of form
"glob CODE1 CODE2", for example: "test/*.py W293 E203"
- speed up tests by preventing pep8 checking if 
a file was unmodified after its last change.
- simplified pep8 checker usage (thanks flox)

0.9.1

----------------------------------------------

- fixed compatibility with pep8==1.3
- made pytest_pep8 source itself pep9 compliant

0.8

----------------------------------------------

- fix a bug with ignore option when the ignore count is higher than 
the error count (thanks Tetsuya Morimoto)

0.7

----------------------------------------------

- change defaults and ini-file option name:
now all pep8 checks are enabled and need to
be explicitely ignored through a "pep8ignore" setting
in the ini file.

0.6

----------------------------------------------

- initial release
Links

Update pytest-cov from 2.5.1 to 2.5.1.

Changelog

2.5.1

------------------

* Fixed xdist breakage (regression in ``2.5.0``).
Fixes `157 <https://github.com/pytest-dev/pytest-cov/issues/157>`_.
* Allow setting custom ``data_file`` name in ``.coveragerc``.
Fixes `145 <https://github.com/pytest-dev/pytest-cov/issues/145>`_.
Contributed by Jannis Leidel & Ionel Cristian Mărieș in
`156 <https://github.com/pytest-dev/pytest-cov/pull/156>`_.

2.5.0

------------------

* Always show a summary when ``--cov-fail-under`` is used. Contributed by Francis Niu in `PR141
<https://github.com/pytest-dev/pytest-cov/pull/141>`_.
* Added ``--cov-branch`` option. Fixes `85 <https://github.com/pytest-dev/pytest-cov/issues/85>`_.
* Improve exception handling in subprocess setup. Fixes `144 <https://github.com/pytest-dev/pytest-cov/issues/144>`_.
* Fixed handling when ``--cov`` is used multiple times. Fixes `151 <https://github.com/pytest-dev/pytest-cov/issues/151>`_.

2.4.0

------------------

* Added a "disarm" option: ``--no-cov``. It will disable coverage measurements. Contributed by Zoltan Kozma in
`PR135 <https://github.com/pytest-dev/pytest-cov/pull/135>`_.

**WARNING: Do not put this in your configuration files, it's meant to be an one-off for situations where you want to
disable coverage from command line.**
* Fixed broken exception handling on ``.pth`` file. See `136 <https://github.com/pytest-dev/pytest-cov/issues/136>`_.

2.3.1

------------------

* Fixed regression causing spurious errors when xdist was used. See `124
<https://github.com/pytest-dev/pytest-cov/issues/124>`_.
* Fixed DeprecationWarning about incorrect `addoption` use. Contributed by Florian Bruhin in `PR127
<https://github.com/pytest-dev/pytest-cov/pull/127>`_.
* Fixed deprecated use of funcarg fixture API. Contributed by Daniel Hahler in `PR125
<https://github.com/pytest-dev/pytest-cov/pull/125>`_.

2.3.0

------------------

* Add support for specifying output location for html, xml, and annotate report.
Contributed by Patrick Lannigan in `PR113 <https://github.com/pytest-dev/pytest-cov/pull/113>`_.
* Fix bug hiding test failure when cov-fail-under failed.
* For coverage >= 4.0, match the default behaviour of `coverage report` and
error if coverage fails to find the source instead of just printing a warning.
Contributed by David Szotten in `PR116 <https://github.com/pytest-dev/pytest-cov/pull/116>`_.
* Fixed bug occurred when bare ``--cov`` parameter was used with xdist.
Contributed by Michael Elovskikh in `PR120 <https://github.com/pytest-dev/pytest-cov/pull/120>`_.
* Add support for ``skip_covered`` and added ``--cov-report=term-skip-covered`` command
line options. Contributed by Saurabh Kumar in `PR115 <https://github.com/pytest-dev/pytest-cov/pull/115>`_.

2.2.1

------------------

* Fixed incorrect merging of coverage data when xdist was used and coverage was ``>= 4.0``.

2.2.0

------------------

* Added support for changing working directory in tests. Previously changing working
directory would disable coverage measurements in suprocesses.
* Fixed broken handling for ``--cov-report=annotate``.

2.1.0

------------------

* Added support for `coverage 4.0b2`.
* Added the ``--cov-append`` command line options. Contributed by Christian Ledermann
in `PR80 <https://github.com/pytest-dev/pytest-cov/pull/80>`_.

2.0.0

------------------

* Added ``--cov-fail-under``, akin to the new ``fail_under`` option in `coverage-4.0`
(automatically activated if there's a ``[report] fail_under = ...`` in ``.coveragerc``).
* Changed ``--cov-report=term`` to automatically upgrade to ``--cov-report=term-missing``
if there's ``[run] show_missing = True`` in ``.coveragerc``.
* Changed ``--cov`` so it can be used with no path argument (in wich case the source
settings from ``.coveragerc`` will be used instead).
* Fixed `.pth` installation to work in all cases (install, easy_install, wheels, develop etc).
* Fixed `.pth` uninstallation to work for wheel installs.
* Support for coverage 4.0.
* Data file suffixing changed to use coverage's ``data_suffix=True`` option (instead of the
custom suffixing).
* Avoid warning about missing coverage data (just like ``coverage.control.process_startup``).
* Fixed a race condition when running with xdist (all the workers tried to combine the files).
It's possible that this issue is not present in `pytest-cov 1.8.X`.

1.8.2

------------------

* N/A
Links

Update codecov from 2.0.15 to 2.0.15.

Changelog

2.0.15

- add `-X s3` to disable direct to S3 uploading

2.0.14

- fixed coverage combine

2.0.13

- fix encoding issues

2.0.12

- revert merge commit fix, back to old way

2.0.11

- fix merge commit when it's a pull request
- remove snapci, business closed
- skip vendor directories for gcov parsing
- run coverage combine not merge
- fix report encoding

2.0.10

- fix uploading when reports contain characters outside of latin-1
- remove reduced_redundancy header from

2.0.7

- Add `--name/-n` to cli
- Add support for Jenkins Blue
- Fix environment variable joining
- Add Greenhouse CI detection
- Fix GitLab detection
- Add default `VCS_*` environment
- Auto-merge py-coverage
- Remove Xcode processing support, please use bash uploader.
- Support yaml:token and yaml:slug

2.0.5

- Use `%20` for encoding spaces [appveyor] https://github.com/codecov/codecov-python/pull/66

2.0.4

- fix detecting merge commits on all CI, not just Travis

2.0.3

- add `-F` to flagging uploads [new feature]
- fixed some reports ascii chars
- added `--pr` flag for manually specifing pulls
- added `--tag` flag for manually git tags
- added env detection for Travis
- added buildkite detection
- added teamcity detection
- added more snapci detection
- detect `codecov.yml` file detection
- depreciating xcode support, use [bash uploader](https://github.com/codecov/codecov-bash)
- hide token from stdout

1.6.4

- fix gitlab project directory
- fallback on git branch/commit
- fix using gcov_exec

1.6.0

- depreciate `--no-fail` now a default
- add `--required` to fail the build if Codecov fails
- added `--cacerts` for enterprise customers
- added fix reports http://bit.ly/1O4eBpt

1.5.0

- fix retreiving mercurial commit
- add support for swift/xcode7 profdata
- now uploading direct-to-s3 to improve product performance
- not require branch, will default to `master` (the default branch)
- fix drone.io commit number, which is not a full 40 sha.

1.4.1

- added `--no-fail` to prevent failing builds when missing configuration or Codecov errors

1.4.0

- Ignore other known bad files/paths
- Added test suite to test against example repositories
- Using `coverage xml -i` to ignore No source for code errors
- Cleaned up command output with help and colors
- Added `gcov` processing, see `codecov --help` for more info.

1.3.1

- Ignore other known bad files/paths
- Fix issue with decoding files in py3+

1.3.0

- Refactor project to be a global uploader for more reports

1.2.3

- Remove `test-results.xml`, not a coverage file
- Add CircleCI container numbers

1.2.2

- bring back client-side pre-processing for jacoco (they can crush)

1.2.1

- accept any file ending in `coverge.xml`

1.2.0

- accept `nosetests.xml` and `test-results.xml` files
- no longer do client side pre-processing, upload raw
- capture SEMAPHORE_CURRENT_THREAD

1.1.13

- added --build arg for advanced usage

1.1.10

- fix package for 2.6 on windows
- fix showing `--help` when called in non-git backed repo
- fix AppVeyor public repos

1.1.8

- support GitLab CI Runner
- added rollbar to help bugs if presented
- added more filepath matching
- pep8 cleanup
- added Shippable ci

1.1.7

- support for D lang added, special thanks to ColdenCullen
- Wercker CI supported by Robpol86
- fixed Drone build number

1.1.6

- fix semaphore commit revision number
- preprocess reports from xml

1.1.5

- search for all `lcov|gcov` files
- depreciate `--min-coverage`, use Github Status Update feature
- pre-process xml => json

1.1.4

- added support for pyhton 2.6 by Robpol86
- added AppVeyor support by Robpol86

1.1.3

- added more ignore paths

1.1.2

- search for `lcov.info` files
- pause for `.1` before checking for min-coverage
- accept `--env` variables which are stored in front-end for build specs

1.1.1

- build python coverage xml only when no reports found to fix overriding reports
- now defaulting output to **plain text**. Use `--json` to return json results
- added `jacocoTestReport.xml` to search list
- changed `--min-coverage` waiting methods to, `5 tries  15s` each
- added `Sites/www/bower` and `node_modules` to ignored table of contents
Links

Update pylint from 1.9.1 to 1.9.1.

Changelog

1.9

=========================

Release date: 2018-05-15

 * Added two new Python 3 porting checks, `exception-escape` and `comprehension-escape`

   These two are emitted whenever pylint detects that a variable defined in the
   said blocks is used outside of the given block. On Python 3 these values are deleted.

 * Added a new `deprecated-sys-function`, emitted when accessing removed sys members.

 * Added `xreadlines-attribute`, emitted when the `xreadlines()` attribute is accessed.

 * The Python 3 porting mode can now run with Python 3 as well.

 * docparams extension allows abstract methods to document what overriding
   implementations should return, and to raise NotImplementedError without
   documenting it.

   Closes 2044

 * Special methods do not count towards `too-few-methods`,
   and are considered part of the public API.

 * Enum classes do not trigger `too-few-methods`

   Close 605

 * Added a new Python 2/3 check for accessing `operator.div`, which is removed in Python 3

   Close 1936

 * Added a new Python 2/3 check for accessing removed urllib functions

   Close 1997

1.8.1

=========================

Release date: 2017-12-15

 * Wrong version number in __pkginfo__.

1.8

=========================

Release date: 2017-12-15

 * Respect disable=... in config file when running with --py3k.

 * New warning `shallow-copy-environ` added

   Shallow copy of os.environ doesn't work as people may expect. os.environ
   is not a dict object but rather a proxy object, so any changes made
   on copy may have unexpected effects on os.environ

   Instead of copy.copy(os.environ) method os.environ.copy() should be
   used.

   See https://bugs.python.org/issue15373 for details.

   Close 1301

 * Do not display no-absolute-import warning multiple times per file.

 * `trailing-comma-tuple` refactor check now extends to assignment with
    more than one element (such as lists)

   Close 1713

 * Fixing u'' string in superfluous-parens message

   Close 1420

 * `abstract-class-instantiated` is now emitted for all inference paths.

    Close 1673

 * Add set of predefined naming style to ease configuration of checking
   naming conventions.

   Closes 1013

 * Added a new check, ``keyword-arg-before-vararg``

   This is emitted for function definitions
   in which keyword arguments are placed before variable
   positional arguments (*args).

   This may lead to args list getting modified if keyword argument's value
   is not provided in the function call assuming it will take default value
   provided in the definition.

 * The `invalid-name` check contains the name of the template that caused the failure

   Close 1176

 * Using the -j flag won't start more child linters than needed.

   Contributed by Roman Ivanov in 1614

 * Fix a false positive with bad-python3-import on relative imports

   Close 1608

 * Added a new Python 3 check, ``non-ascii-bytes-literals``

   Close 1545

 * Added a couple of new Python 3 checks for accessing dict methods in non-iterable context

 * Protocol checks (not-a-mapping, not-an-iterable and co.) aren't emitted on classes with dynamic getattr

 * Added a new warning, 'bad-thread-instantiation'

   This message is emitted when the threading.Thread class does not
   receive the target argument, but receives just one argument, which
   is by default the group parameter.

   Close 1327

 * In non-quiet mode, absolute path of used config file is logged to
   standard error.
   Close 1519

 * Raise meaningful exception for invalid reporter class being selected

   When unknown reporter class will be selected as Pylint reporter,
   meaningful error message would be raised instead of bare ``ImportError``
   or ``AttribueError`` related to module or reporter class being not found.
   Close 1388

 * Added a new Python 3 check for accessing removed functions from itertools
   like ``izip`` or ``ifilterfalse``

 * Added a new Python 3 check for accessing removed fields from the types
   module like ``UnicodeType`` or ``XRangeType``

 * Added a new Python 3 check for declaring a method ``next`` that would have
   been treated as an iterator in Python 2 but a normal function in Python 3.

 * Added a new key-value pair in json output. The key is ``message-id``
   and the value is the message id.
   Close 1512

 * Added a new Python 3.0 check for raising a StopIteration inside a generator.
   The check about raising a StopIteration inside a generator is also valid if the exception
   raised inherit from StopIteration.
   Close 1385

 * Added a new warning, ``raising-format-tuple``, to detect multi-argument
   exception construction instead of message string formatting.

 * Added a new check for method of logging module that concatenate string via + operator
   Close 1479

 * Added parameter for limiting number of suggestions in spellchecking checkers

 * Fix a corner-case in ``consider-using-ternary`` checker.

   When object ``A`` used in  ``X and A or B`` was falsy in boolean context,
   Pylint incorrectly emitted non-equivalent ternary-based suggestion.
   After a change message is correctly not emitted for this case.
   Close 1559

 * Added ``suggestion-mode`` configuration flag. When flag is enabled, informational
   message is emitted instead of cryptic error message for attributes accessed on
   c-extensions.
   Close 1466

 * Fix a false positive ``useless-super-delegation`` message when
   parameters default values are different from those used in the base class.
   Close 1085

 * Disabling 'wrong-import-order', 'wrong-import-position', or
   'ungrouped-imports' for a single line now prevents that line from
   triggering violations on subsequent lines.

   Close 1336

 * Added a new Python check for inconsistent return statements inside method or function.
   Close 1267

 * Fix ``superfluous-parens`` false positive related to handling logical statements
   involving ``in`` operator.

   Close 574

 * ``function-redefined`` message is no longer emitted for functions and
   methods which names matches dummy variable name regular expression.
   Close 1369

 * Fix ``missing-param-doc`` and ``missing-type-doc`` false positives when
   mixing ``Args`` and ``Keyword Args`` in Google docstring.
   Close 1409

  * Fix ``missing-docstring`` false negatives when modules, classes, or methods
  consist of compound statements that exceed the ``docstring-min-length``

 * Fix ``useless-else-on-loop`` false positives when break statements are
   deeply nested inside loop.
   Close 1661

 * Fix no ``wrong-import-order`` message emitted on ordering of first and third party
   libraries. With this fix, pylint distinguishes third and first party
   modules when checking import order.
   Close 1702

 * Fix ``pylint disable=fixme`` directives ignored for comments following the
   last statement in a file.
   Close 1681

 * Fix ``line-too-long`` message deactivated by wrong disable directive.
   The directive ``disable=fixme`` doesn't deactivate anymore the emission
   of ``line-too-long`` message for long commented lines.
   Close 1741

 * If the rcfile specified on the command line doesn't exist, then an
   IOError exception is raised.
   Close 1747

 * Fix the wrong scope of the ``disable=`` directive after a commented line.
   For example when a ``disable=line-too-long`` directive is at the end of
   a long commented line, it no longer disables the emission of ``line-too-long``
   message for lines that follow.
   Close 1742

1.7.1

=========================

Release date: 2017-04-17

 * Fix a false positive which occurred when an exception was reraised

   Close 1419

 * Fix a false positive of ``disallow-trailing-tuple``

   The check was improved by verifying for non-terminating newlines, which
   should exempt function calls and function definitions from the check
   Close 1424

1.7

=========================

Release date: 2017-04-13

 * Don't emit missing-final-newline or trailing-whitespace for formfeeds (page breaks).

   Close 1218 and 1219

 * Don't emit by default no-member if we have opaque inference objects in the inference results

   This is controlled through the new flag ignore-on-opaque-inference, which is by
   default True. The inference can return  multiple potential results while
   evaluating a Python object, but some branches might not be evaluated, which
   results in partial inference. In that case, it might be useful to still emit
   no-member and other checks for the rest of the inferred objects.

 * Added new message `assign-to-new-keyword` to warn about assigning to names which
   will become a keyword in future Python releases.

   Close 1351

 * Split the 'missing or differing' in parameter documentation in different error.
   'differing-param-doc' covers the differing part of the old 'missing-param-doc',
   and 'differing-type-doc' covers the differing part of the old 'missing-type-doc'

   Close 1342

 * Added a new error, 'used-prior-global-declaration', which is emitted when a name
   is used prior a global declaration in a function. This causes a SyntaxError in
   Python 3.6

   Close 1257

 * The protocol checks are emitting their messages when a special method is set to None.

   Close 1263

 * Properly detect if imported name is assigned to same name in different
   scope.

   Close 636, 848, 851, and 900

 * Require one space for annotations with type hints, as per PEP 8.

 * 'trailing-comma-tuple' check was added

   This message is emitted when pylint finds an one-element tuple,
   created by a stray comma. This can suggest a potential problem in the
   code and it is recommended to use parantheses in order to emphasise the
   creation of a tuple, rather than relying on the comma itself.

 * Don't emit not-callable for instances with unknown bases.

   Close 1213

 * Treat keyword only arguments the same as positional arguments with regard to unused-argument check

 * Don't try to access variables defined in a separate scope when checking for ``protected-access``

 * Added new check to detect incorrect usage of len(SEQUENCE) inside
   test conditions.

 * Added new extension to detect comparisons against empty string constants

 * Added new extension to detect comparisons of integers against zero

 * Added new error conditions for 'bad-super-call'

   Now detects ``super(type(self), self)`` and ``super(self.__class__, self)``
   which can lead to recursion loop in derived classes.

 * PyLinter.should_analyze_file has a new optional parameter, called `is_argument`

   Close 1079

 * Add attribute hints for missing members

   Closes 1035

 * Add a new warning, 'redefined-argument-from-local'

   Closes 649

 * Support inline comments for comma separated values in the config file

   Closes 1024

 * epylint.py_run's *script* parameter was removed.

 * epylint.py_run now uses ``shell=False`` for running the underlying process.

   Closes 441

 * Added a new warning, 'useless-super-delegation'

   Close 839.

 * Added a new error, 'invalid-metaclass', raised when
   we can detect that a class is using an improper metaclass.

   Close 579

 * Added a new refactoring message, 'literal-comparison'.

   Close 786

 * arguments-differ takes in consideration kwonlyargs and variadics

   Close 983

 * Removed --optimized-ast. Part of 975.

 * Removed --files-output option. Part of 975.

 * Removed pylint-gui from the package.

 * Removed the HTML reporter. Part of 975.

 * ignored-argument-names is now used for ignoring arguments for unused-variable check.

   This option was used for ignoring arguments when computing the correct number of arguments
   a function should have, but for handling the arguments with regard
   to unused-variable check, dummy-variables-rgx was used instead. Now, ignored-argument-names
   is used for its original purpose and also for ignoring the matched arguments for
   the unused-variable check. This offers a better control of what should be ignored
   and how.
   Also, the same option was moved from the design checker to the variables checker,
   which means that the option now appears under the ``[VARIABLES]`` section inside
   the configuration file.
   Close 862.

 * Fix a false positive for keyword variadics with regard to keyword only arguments.

   If a keyword only argument was necessary for a function, but that function was called
   with keyword variadics (**kwargs), then we were emitting a missing-kwoa false positive,
   which is now fixed.

   Close 934.

 * Fix some false positives with unknown sized variadics.

   Close 878

 * Added a new extension, check_docstring, for checking PEP 257 conventions.

   Closes 868.

 * config files with BOM markers can now be read.

   Close 864.

 * epylint.py_run does not crash on big files, using .communicate() instead of .wait()

   Close 599

 * Disable reports by default and show the evaluation score by default

   As per discussion from issue 746, the reports were disabled by
   default in order to simplify the interaction between the tool
   and the users. The score is still shown by default, as a way of
   closely measuring when it increases or decreases due to changes
   brought to the code.

 * Disable the information category messages by default.

   This is a step towards making pylint more sane, as
   per the discussion from issue 746.

 * Catch more cases as not proper iterables for __slots__ with
   regard to invalid-slots pattern. Closes issue 775.

 * empty indent strings are rejected.

 * Added a new error, 'relative-beyond-top-level', which is emitted
   when a relative import was attempted beyond the top level package.

   Closes issue 588.

 * Added a new warning, 'unsupported-assignment-operation', which is
   emitted when item assignment is tried on an object which doesn't
   have this ability. Closes issue 591.

 * Added a new warning, 'unsupported-delete-operation', which is
   emitted when item deletion is tried on an object which doesn't
   have this ability. Closes issue 592.

 * Fix a false positive of 'redundant-returns-doc', occurred when the documented
   function was using *yield* instead of *return*.

   Closes issue 984.

 * Fix false positives of 'missing-[raises|params|type]-doc' due to not
   recognizing keyword synonyms supported by Sphinx.

 * Added a new refactoring message, 'consider-merging-isinstance', which is
   emitted whenever we can detect that consecutive isinstance calls can be
   merged together.

   Closes issue 968

 * Fix a false positive of 'missing-param-doc' and 'missing-type-doc',
   occurred when a class docstring uses the 'For the parameters, see'
   magic string but the class __init__ docstring does not, or vice versa.

 * `redefined-outer-name` is now also emitted when a nested loop's target
   variable is the same as a target variable in an outer loop.

   Closes issue 911.

 * Added proper exception type inference for 'missing-raises-doc'.

 * Added InvalidMessageError exception class to replace asserts in
   pylint.utils.

 * More thorough validation in MessagesStore.register_messages() to avoid
   one message accidentally overwriting another.

 * InvalidMessageError, UnknownMessage, and EmptyReport exceptions are
   moved to the new pylint.exceptions submodule.

 * UnknownMessage and EmptyReport are renamed to UnknownMessageError and
   EmptyReportError.

 * Warnings 'missing-returns-type-doc' and 'missing-yields-type-doc'
   have each been split into two warnings - 'missing-[return|yield]-doc'
   and 'missing-[return|yield]-type-doc'.

 * Added epytext support to docparams extension.

   Closes 1029.

 * Support having plugins with the same name and with options defined

   Closes 1018

 * Sort configuration options in a section

   Closes 1087

 * Added a new Python 3 warning around implementing '__div__', '__idiv__', or
   '__rdiv__' as those methods are phased out in Python 3.

 * Added a new warning, 'overlapping-except', which is
   emitted when two exceptions in the same except-clause are aliases
   for each other or one exceptions is an ancestor of another.

 * Avoid crashing on ill-formatted strings when checking for string formatting errors.

 * Added a new Python 3 warning for calling 'str.encode' or 'str.decode' with a non-text
   encoding.

 * Added new coding convention message, 'single-string-used-for-slots'.

   Closes 1166

 * Added a new Python 3 check for accessing 'sys.maxint' which was removed in Python 3 in favor
   of 'sys.maxsize'

 * Added a new Python 3 check for bad imports.

 * Added a new Python 3 check for accessing deprecated string functions.

 * Do not warn about unused arguments or function being redefined in singledispatch
   registered implementations.

   Closes 1032 and 1034

 * Added refactoring message 'no-else-return'.

 * Improve unused-variable checker to warn about unused variables in module scope.

   Closes 919

 * Ignore modules import as _ when checking for unused imports.

   Closes 1190

 * Improve handing of Python 3 classes with metaclasses declared in nested scopes.

   Closes 1177

 * Added refactoring message 'consider-using-ternary'.

   Closes 1204

 * Bug-fix for false-positive logging-format-interpolation` when format specifications
   are used in formatted string.

   Fixes 572

 * Added a new switch ``single-line-class-stmt`` to allow single-line declaration
   of empty class bodies.

   Closes 738

 * Protected access in form `type(self)._attribute` are now allowed.

   Fixes 1031

 * Let the user modify msg-template when Pylint is called from a Python script

   Fixes 1269

 * Imports checker supports new switch ``allow-wildcard-with-all`` which disables
   warning on wildcard import when imported module defines `__all__` variable.

   Fixes 831

 * `too-many-format-args` and `too-few-format-args` are emitted correctly when
   starred expression are used in RHS tuple.

   Fixes 957

 * `cyclic-import` checker supports local disable clauses. When one
   of cycle imports was done in scope where disable clause was active,
   cycle is not reported as violation.

   Fixes 59

1.6.3

===========================

Release date: 2016-07-18

 * Do not crash when inferring uninferable exception types for docparams extension

   Close 998

1.6.2

===========================

Release date: TBA

 * Do not crash when printing the help of options with default regular expressions

   Close 990

 * More granular versions for deprecated modules.

   Close 991

1.6.1

===========================

Release date: 2016-07-07

 * Use environment markers for supporting conditional dependencies.

1.6.0

===========================

Release date: 2016-07-03

 * Added a new extension, `pylint.extensions.mccabe`, for warning
   about complexity in code.

 * Deprecate support for --optimize-ast. Part of 975.

 * Deprecate support for the HTML output. Part of 975.

 * Deprecate support for --output-files. Part of 975.

 * Fixed a documentation error for the check_docs extension. Fixes 735.

 * Made the list of property-defining decorators configurable.

 * Fix a bug where the top name of a qualified import was detected as unused variable.

   Close 923.

 * bad-builtin is now an extension check.

 * generated-members support qualified name through regular expressions.

   For instance, one can specify a regular expression as --generated-members=astroid.node_classes.*
   for ignoring every no-member error that is accessed as in `astroid.node_classes.missing.object`.

 * Add the ability to ignore files based on regex matching, with the new ``--ignore-patterns``
   option.

   This addresses issue 156 by allowing for multiple ignore patterns
   to be specified. Rather than clobber the existing ignore option, we
   introduced a new one called ignore-patterns.

 * Added a new error, 'trailing-newlines', which is emitted when a file
   has trailing new lines.

   Closes issue 682.

 * Add a new option, 'redefining-builtins-modules', for controlling the modules
   which can redefine builtins, such as six.moves and future.builtins.

   Close 464.

 * 'reimported' is emitted when the same name is imported from different module.

   Close 162.

 * Add a new recommendation checker, 'consider-iterating-dictionary', which is emitted
   which is emitted when a dictionary is iterated through .keys().

   Close 699

 * Use the configparser backport for Python 2

   This fixes a problem we were having with comments inside values, which is fixed
   in Python 3's configparser.
   Close 828

 * A new error was added, 'invalid-length-returned', when the `__len__`
   special method returned something else than a non-negative number.

   Close issue 557

 * Switch to using isort internally for wrong-import-order.

   Closes 879.

 * check_docs extension can find constructor parameters in __init__.

   Closes 887.

 * Don't warn about invalid-sequence-index if the indexed object has unknown base
   classes.

   Closes 867

 * Don't crash when checking, for super-init-not-called, a method defined in an if block.

 * Do not emit import-error or no-name-in-module for fallback import blocks by default.

   Until now, we warned with these errors when a fallback import block (a TryExcept block
   that contained imports for Python 2 and 3) was found, but this gets cumbersome when
   trying to write compatible code. As such, we don't check these blocks by default,
   but the analysis can be enforced by using the new ``--analyse-fallback-block`` flag.

   Close 769.

1.5.5

===========================

Release date: 2016-03-21


 * Let visit_importfrom from Python 3 porting checker be called when everything is disabled

   Because the visit method was filtering the patterns it was expecting to be activated,
   it didn't run when everything but one pattern was disabled, leading to spurious false
   positives

   Close 852

 * Don't emit unsubscriptable-value for classes with unknown
   base classes.

   Close 776.

 * Use an OrderedDict for storing the configuration elements

   This fixes an issue related to impredictible order of the disable / enable
   elements from a config file. In certain cases, the disable was coming before
   the enable which resulted in classes of errors to be enabled, even though the intention
   was to disable them. The best example for this was in the context of running multiple
   processes, each one of it having different enables / disables that affected the output.

   Close 815

 * Don't consider bare and broad except handlers as ignoring NameError,
   AttributeError and similar exceptions, in the context of checkers for
   these issues.

   Closes issue 826

1.5.4

===========================

Release date: 2016-01-15


 * Merge StringMethodChecker with StringFormatChecker. This fixes a
   bug where disabling all the messages and enabling only a handful of
   messages from the StringFormatChecker would have resulted in no
   messages at all.

 * Don't apply unneeded-not over sets.

1.5.3

===========================

Release date: 2016-01-11

 * Handle the import fallback idiom with regard to wrong-import-order.

   Closes issue 750.

 * Decouple the displaying of reports from the displaying of messages

   Some reporters are aggregating the messages instead of displaying
   them when they are available. The actual displaying was conflatted
   in the generate_reports. Unfortunately this behaviour was flaky
   and in the case of the JSON reporter, the messages weren't shown
   at all if a file had syntax errors or if it was missing.
   In order to fix this, the aggregated messages can now be
   displayed with Reporter.display_message, while the reports are
   displayed with display_reports.

   Closes issues 766 and 765.

 * Ignore function calls with variadic arguments without a context.

   Inferring variadic positional arguments and keyword arguments
   will result into empty Tuples and Dicts, which can lead in
   some cases to false positives with regard to no-value-for-parameter.
   In order to avoid this, until we'll have support for call context
   propagation, we're ignoring such cases if detected.
   Closes issue 722.

 * Treat AsyncFunctionDef just like FunctionDef nodes,
   by implementing visit_asyncfunctiondef in terms of
   visit_functiondef.

   Closes issue 767.

 * Take in account kwonlyargs when verifying that arguments
   are defined with the check_docs extension.

   Closes issue 745.

 * Suppress reporting 'unneeded-not' inside `__ne__` methods

   Closes issue 749.

1.5.2

===========================

Release date: 2015-12-21

 * Don't crash if graphviz is not installed, instead emit a
   warning letting the user to know.

   Closes issue 168.

 * Accept only functions and methods for the deprecated-method checker.

   This prevents a crash which can occur when an object doesn't have
   .qname() method after the inference.

 * Don't emit super-on-old-class on classes with unknown bases.
   Closes issue 721.

 * Allow statements in `if` or `try` blocks containing imports.

   Closes issue 714.

1.5.1

===========================

Release date: 2015-12-02


 * Fix a crash which occurred when old visit methods are encountered
   in plugin modules. Closes issue 711.

 * Add wrong-import-position to check_messages's decorator arguments
   for ImportChecker.leave_module
   This fixes an esoteric bug which occurs when ungrouped-imports and
   wrong-import-order are disabled and pylint is executed on multiple files.
   What happens is that without wrong-import-position in check_messages,
   leave_module will never be called, which means that the first non-import node
   from other files might leak into the current file,
   leading to wrong-import-position being emitted by pylint.

 * Fix a crash which occurred when old visit methods are encountered
   in plugin modules. Closes issue 711.

 * Don't emit import-self and cyclic-import for relative imports
   of modules with the same name as the package itself.
   Closes issues 708 and 706.

1.5.0

===========================

Release date: 2015-11-29


 * Added multiple warnings related to imports. 'wrong-import-order'
   is emitted when PEP 8 recommendations regarding imports are not
   respected (that is, standard imports should be followed by third-party
   imports and then by local imports). 'ungrouped-imports' is emitted
   when imports from the same package or module are not placed
   together, but scattered around in the code. 'wrong-import-position'
   is emitted when code is mixed with imports, being recommended for the
   latter to be at the top of the file, in order to figure out easier by
   a human reader what dependencies a module has.
   Closes issue 692.

 * Added a new refactoring warning, 'unneeded-not', emitted
   when an expression with the not operator could be simplified.
   Closes issue 670.

 * Added a new refactoring warning, 'simplifiable-if-statement',
   used when an if statement could be reduced to a boolean evaluation
   of its test. Closes issue 698.

 * Added a new refactoring warning, 'too-many-boolean-expressions',
   used when an if statement contains too many boolean expressions,
   which makes the code less maintainable and harder to understand.
   Closes issue 677.

 * Property methods are shown as attributes instead of functions in
   pyreverse class diagrams. Closes Issue 284

 * Add a new refactoring error, 'too-many-nested-blocks', which is emitted
   when a function or a method has too many nested blocks, which makes the
   code less readable and harder to understand. Closes issue 668.

 * Add a new error, 'unsubscriptable-object', that is emitted when
   value used in subscription expression doesn't support subscription
   (i.e. doesn't define __getitem__ method).

 * Don't warn about abstract classes instantiated in their own
   body. Closes issue 627.

 * Obsolete options are not present by default in the generated
   configuration file. Closes issue 632.

 * non-iterator-returned can detect classes with iterator-metaclasses.
   Closes issue 679.

 * Add a new error, 'unsupported-membership-test', emitted when value
   to the right of the 'in' operator doesn't support membership test
   protocol (i.e. doesn't define __contains__/__iter__/__getitem__)

 * Add new errors, 'not-an-iterable', emitted when non-iterable value
   is used in an iterating context (starargs, for-statement,
   comprehensions, etc), and 'not-a-mapping', emitted when non-mapping
   value is used in a mapping context. Closes issue 563.

 * Make 'no-self-use' checker not emit a warning if there is a 'super()'
   call inside the method.
   Closes issue 667.

 * Add checker to identify multiple imports on one line.
   Closes issue 598.

 * Fix unused-argument false positive when the "+=" operator is used.
   Closes issue 518.

 * Don't emit import-error for ignored modules. PyLint will not emit import
   errors for any import which is, or is a subpackage of, a module in
   the ignored-modules list. Closes issue 223.

 * Fix unused-import false positive when the import is used in a
   class assignment. Closes issue 475

 * Add a new error, 'not-context-manager', emitted when something
   that doesn't implement __enter__ and __exit__ is used in a with
   statement.

 * Add a new warning, 'confusing-with-statement', emitted by the
   base checker, when an ambiguous looking with statement is used.
   For example `with open() as first, second` which looks like a
   tuple assignment but is actually 2 context managers.

 * Add a new warning, 'duplicate-except', emitted when there is an
   exception handler which handles an exception type that was handled
   before. Closes issue 485.

 * A couple of warnings got promoted to errors, since they could uncover
   potential bugs in the code. These warnings are: assignment-from-none,
   unbalanced-tuple-unpacking, unpacking-non-sequence, non-iterator-returned.
   Closes issue 388.

 * Allow ending a pragma control with a semicolon. In this way, users
   can continue a pragma control with a reason for why it is used,
   as in ` pylint: disable=old-style-class;reason=...`.
   Closes issue 449.

 * --jobs can be used with --load-plugins now. Closes issue 456.

 * Improve the performance of --jobs when dealing only with a package
   name. Closes issue 479.

 * Don't emit an unused-wildcard-import when the imported name comes
   from another module and it is in fact a __future__ name.

 * The colorized reporter now works on Windows. Closes issue 96.

 * Remove pointless-except warning. It was previously disabled by
   default and it wasn't very useful. Closes issue 506.

 * Fix a crash on Python 3 related to the string checker, which
   crashed when it encountered a bytes string with a .format
   method called.

 * Don't warn about no-self-use for builtin properties.

 * Fix a false positive for bad-reversed-sequence, when a subclass
   of a `dict` provides a __reversed__ method.

 * Change the default no-docstring-rgx so missing-docstring isn't
   emitted for private functions.

 * Don't emit redefined-outer-name for __future__ directives.
   Closes issue 520.

 * Provide some hints for the bad-builtin message. Closes issue 522.

 * When checking for invalid arguments to a callable, in typecheck.py,
   look up for the __init__ in case the found __new__ comes from builtins.

   Since the __new__ comes from builtins, it will not have attached any
   information regarding what parameters it expects, so the check
   will be useless. Retrieving __init__ in that case will at least
   detect a couple of false negatives. Closes issue 429.

 * Don't emit no-member for classes with unknown bases.

   Since we don't know what those bases might add, we simply ignore
   the error in this case.

 * Lookup in the implicit metaclass when checking for no-member,
   if the class in question has an implicit metaclass, which is
   True for new style classes. Closes issue 438.

 * Add two new warnings, duplicate-bases and inconsistent-mro.

   duplicate-bases is emitted when a class has the same bases
   listed more than once in its bases definition, while inconsistent-mro
   is emitted when no sane mro hierarchy can be determined. Closes issue 526.

 * Remove interface-not-implemented warning. Closes issue 532.

 * Remove the rest of interface checks: interface-is-not-class,
   missing-interface-method, unresolved-interface. The reason is that
   its better to start recommending ABCs instead of the old Zope era
   of interfaces. One side effect of this change is that ignore-iface-methods
   becomes a noop, it's deprecated and it will be removed at some time.

 * Emit a proper deprecation warning for reporters.BaseReporter.add_message.

   The alternative way is to use handle_message. add_message will be removed in
   Pylint 1.6.

 * Added new module 'extensions' for optional checkers with the test
   directory 'test/extensions' and documentation file 'doc/extensions.rst'.

 * Added new checker 'extensions.check_docs' that verifies parameter
   documention in Sphinx, Google, and Numpy style.

 * Detect undefined variable cases, where the "definition" of an undefined
   variable was in del statement. Instead of emitting used-before-assignment,
   which is totally misleading, it now emits undefined-variable.
   Closes issue 528.

 * Don't emit attribute-defined-outside-init and access-member-before-definition
   for mixin classes. Actual errors can occur in mixin classes, but this is
   controlled by the ignore-mixin-members option. Closes issue 412.

 * Improve the detection of undefined variables and variables used before
   assignment for variables used as default arguments to function,
   where the variable was first defined in the class scope.
   Closes issue 342 and issue 404.

 * Add a new warning, 'unexpected-special-method-signature', which is emitted
   when a special method (dunder method) doesn't have the expected signature,
   which can lead to actual errors in the application code.
   Closes issue 253.

 * Remove 'bad-context-manager' due to the inclusion of 'unexpected-special-method-signature'.

 * Don't emit no-name-in-module if the import is guarded by an ImportError, Exception or
   a bare except clause.

 * Don't emit no-member if the attribute access node is protected by an
   except handler, which handles AttributeError, Exception or it is a
   bare except.

 * Don't emit import-error if the import is guarded by an ImportError, Exception or a
   bare except clause.

 * Don't emit undefined-variable if the node is guarded by a NameError, Exception
   or bare except clause.

 * Add a new warning, 'using-constant-test', which is emitted when a conditional
   statement (If, IfExp) uses a test which is always constant, such as numbers,
   classes, functions etc. This is most likely an error from the user's part.
   Closes issue 524.

 * Don't emit 'raising-non-exception' when the exception has unknown
   bases. We don't know what those bases actually are and it's better
   to assume that the user knows what he is doing rather than emitting
   a message which can be considered a false positive.

 * Look for a .pylintrc configuration file in the current folder,
   if pylintrc is not found. Dotted pylintrc files will not be searched
   in the parents of the current folder, as it is done for pylintrc.

 * Add a new error, 'invalid-unary-type-operand', emitted when
   an unary operand is used on something which doesn't support that
   operation (for instance, using the unary bitwise inversion operator
   on an instance which doesn't implement __invert__).

 * Take in consideration differences between arguments of various
   type of functions (classmethods, staticmethods, properties)
   when checking for `arguments-differ`. Closes issue 548.

 * astroid.inspector was moved to pylint.pyreverse, since it belongs
   there and it doesn't need to be in astroid.

 * astroid.utils.LocalsVisitor was moved to pylint.pyreverse.LocalsVisitor.

 * pylint.checkers.utils.excepts_import_error was removed.
   Use pylint.chekcers.utils.error_of_type instead.

 * Don't emit undefined-all-variables for nodes which can't be
   inferred (YES nodes).

 * yield-outside-func is also emitted for `yield from`.

 * Add a new error, 'too-many-star-expressions', emitted when
   there are more than one starred expression (`*x`) in an assignment.
   The warning is emitted only on Python 3.

 * Add a new error, 'invalid-star-assignment-target', emitted when
   a starred expression (`*x`) is used as the lhs side of an assignment,
   as in `*x = [1, 2]`. This is not a SyntaxError on Python 3 though.

 * Detect a couple of objects which can't be base classes (bool,
   slice, range and memoryview, which weren't detected until now).

 * Add a new error for the Python 3 porting checker, `import-star-module-level`,
   which is used when a star import is detected in another scope than the
   module level, which is an error on Python 3. Using this will emit a
   SyntaxWarning on Python 2.

 * Add a new error, 'star-needs-assignment-target', emitted on Python 3 when
   a Starred expression (`*x`) is not used in an assignment target. This is not
   caught when parsing the AST on Python 3, so it needs to be a separate check.

 * Add a new error, 'unsupported-binary-operation', emitted when
   two a binary arithmetic operation is executed between two objects
   which don't support it (a number plus a string for instance).
   This is currently disabled, since the it exhibits way too many false
   positives, but it will be reenabled as soon as possible.

 * New imported features from astroid into pyreverse: pyreverse.inspector.Project,
   pyreverse.inspector.project_from_files and pyreverse.inspector.interfaces.

   These were moved since they didn't belong in astroid.

 * Enable misplaced-future for Python 3. Closes issue 580.

 * Add a new error, 'nonlocal-and-global', which is emitted when a
   name is found to be both nonlocal and global in the same scope.
   Closes issue 581.

 * ignored-classes option can work with qualified names (ignored-classes=optparse.Values)
   Closes issue 297.

 * ignored-modules can work with qualified names as well as with Unix pattern
   matching for recursive ignoring. Closes issues 244.

 * Improve detection of relative imports in non-packages, as well as importing
   missing modules with a relative import from a package.

 * Don't emit no-init if not all the bases from a class are known.
   Closes issue 604.

 * --no-space-check option accepts `empty-line` as a possible option.
   Closes issue 541.

 * --generate-rcfile generates by default human readable symbols
   for the --disable option. Closes issue 608.

 * Improved the not-in-loop checker to properly detect more cases.

 * Add a new error, 'continue-in-finally', which is emitted when
   the `continue` keyword is found inside a `finally` clause, which
   is a SyntaxError.

 * The --zope flag is deprecated and it is slated for removal
   in Pylint 1.6.

   The reason behind this removal is the fact that it's a specialized
   flag and there are solutions for the original problem:
   use --generated-members with the members that causes problems
   when using Zope or add AST transforms tailored to the zope
   project.

   At the same time, --include-ids and --symbols will also be removed
   in Pylint 1.6. Closes issue 570.

 * missing-module-attribute was removed and the corresponding
   CLI option, required-attributes, which is slated for removal
   in Pylint 1.6.

 * missing-reversed-argument was removed.

   The reason behind this is that this kind of errors should be
   detected by the type checker for *all* the builtins and not
   as a special case for the reversed builtin. This will happen
   shortly in the future.

 * --comment flag is obsolete and it will be removed in Pylint 1.6.

 * --profile flag is obsolete and it will be removed in Pylint 1.6.

 * Add a new error, 'misplaced-bare-raise'.

   The error is used when a bare raise is not used inside an except clause.
   This can generate a RuntimeError in Python, if there are no active exceptions
   to be reraised. While it works in Python 2 due to the fact that the exception
   leaks outside of the except block, it's nevertheless a behaviour that
   a user shouldn't depend upon, since it's not obvious to the reader of the code
   what exception will be raised and it will not be compatible with Python 3 anyhow.
   Closes issue 633.

 * Bring logilab-common's ureports into pylint.reporters.

   With this change, we moved away from depending on logilab-common,
   having in Pylint all the components that were used from logilab-common.
   The API should be considered an implementation detail and can change at
   some point in the future.
   Closes issue 621.

 * `reimported` is emitted for reimported objects on the same line.

   Closes issue 639.

 * Abbreviations of command line options are not supported anymore.

   Using abbreviations for CLI options was never considered to be
   a feature of pylint, this fact being only a side effect of using optparse.
   As this was the case, using --load-plugin or other abbreviation
   for --load-plugins never actually worked, while it also didn't raise
   an error. Closes issue 424.

 * Add a new error, 'nonlocal-without-binding'

   The error is emitted on Python 3 when a nonlocal name is not bound
   to any variable in the parents scopes. Closes issue 582.

 * 'deprecated-module' can be shown for modules which aren't
    available. Closes issue 362.

 * Don't consider a class abstract if its members can't
   be properly inferred.

   This fixes a false positive related to abstract-class-instantiated.
   Closes issue 648.

 * Add a new checker for the async features added by PEP 492.

 * Add a new error, 'yield-inside-async-function', emitted on
   Python 3.5 and upwards when the `yield` statement is found inside
   a new coroutine function (PEP 492).

 * Add a new error, 'not-async-context-manager', emitted when
   an async context manager block is used with an object which doesn't
   support this protocol (PEP 492).

 * Add a new convention warning, 'singleton-comparison', emitted when
   comparison to True, False or None is found.

 * Don't emit 'assigning-non-slot' for descriptors. Closes issue 652.

 * Add a new error, 'repeated-keyword', when a keyword argument is passed
   multiple times into a function call.

   This is similar with redundant-keyword-arg, but it's mildly different
   that it needs to be a separate error.

 * --enable=all can now be used. Closes issue 142.

 * Add a new convention message, 'misplaced-comparison-constant',
   emitted when a constant is placed in the left hand side of a comparison,
   as in '5 == func()'. This is also called Yoda condition, since the
   flow of code reminds of the Star Wars green character, conditions usually
   encountered in languages with variabile assignments in conditional
   statements.

 * Add a new convention message, 'consider-using-enumerate', which is
   emitted when code that uses `range` and `len` for iterating is encountered.
   Closes issue 684.

 * Added two new refactoring messages, 'no-classmethod-decorator' and
   'no-staticmethod-decorator', which are emitted when a static method or a class
   method is declared without using decorators syntax.

   Closes issue 675.

1.4.3

===========================

Release date: 2015-03-14


 * Remove three warnings: star-args, abstract-class-little-used,
   abstract-class-not-used. These warnings don't add any real value
   and they don't imply errors or problems in the code.

 * Added a new option for controlling the peephole optimizer in astroid.
   The option ``--optimize-ast`` will control the peephole optimizer,
   which is used to optimize a couple of AST subtrees. The current problem
   solved by the peephole optimizer is when multiple joined strings,
   with the addition operator, are encountered. If the numbers of such
   strings is high enough, Pylint will then fail with a maximum recursion
   depth exceeded error, due to its visitor architecture. The peephole
   just transforms such calls, if it can, into the final resulting string
   and this exhibit a problem, because the visit_binop method stops being
   called (in the optimized AST it will be a Const node).

1.4.2

===========================

Release date: 2015-03-11

 * Don't require a docstring for empty modules. Closes issue 261.

 * Fix a false positive with `too-few-format-args` string warning,
   emitted when the string format contained a normal positional
   argument ('{0}'), mixed with a positional argument which did
   an attribute access ('{0.__class__}').
   Closes issue 463.

 * Take in account all the methods from the ancestors
   when checking for too-few-public-methods. Closes issue 471.

 * Catch enchant errors and emit 'invalid-characters-in-docstring'
   when checking for spelling errors. Closes issue 469.

 * Use all the inferred statements for the super-init-not-called
   check. Closes issue 389.

 * Add a new warning, 'unichr-builtin', emitted by the Python 3
   porting checker, when the unichr builtin is found. Closes issue 472.

 * Add a new warning, 'intern-builtin', emitted by the Python 3
   porting checker, when the intern builtin is found. Closes issue 473.

 * Add support for editable installations.

 * The HTML output accepts the `--msg-template` option. Patch by
   Dan Goldsmith.

 * Add 'map-builtin-not-iterating' (replacing 'implicit-map-evaluation'),
   'zip-builtin-not-iterating', 'range-builtin-not-iterating', and
   'filter-builtin-not-iterating' which are emitted by `--py3k` when the
   appropriate built-in is not used in an iterating context (semantics
   taken from 2to3).

 * Add a new warning, 'unidiomatic-typecheck', emitted when an explicit
   typecheck uses type() instead of isinstance(). For example,
   `type(x) == Y` instead of `isinstance(x, Y)`. Patch by Chris Rebert.
   Closes issue 299.

 * Add support for combining the Python 3 checker mode with the --jobs
   flag (--py3k and --jobs). Closes issue 467.

 * Add a new warning for the Python 3 porting checker, 'using-cmp-argument',
   emitted when the `cmp` argument for the `list.sort` or `sorted builtin`
   is encountered.

 * Make the --py3k flag commutative with the -E flag. Also, this patch
   fixes the leaks of error messages from the Python 3 checker when
   the errors mode was activated. Closes issue 437.

1.4.1

===========================

Release date: 2015-01-16

 * Look only in the current function's scope for bad-super-call.
   Closes issue 403.

 * Check the return of properties when checking for not-callable.
   Closes issue 406.

 * Warn about using the input() or round() built-ins for Python 3.
   Closes issue 411.

 * Proper abstract method lookup while checking for
   abstract-class-instantiated. Closes issue 401.

 * Use a mro traversal for finding abstract methods. Closes issue 415.

 * Fix a false positive with catching-non-exception and tuples of
   exceptions.

 * Fix a false negative with raising-non-exception, when the raise used
   an uninferrable exception context.

 * Fix a false positive on Python 2 for raising-bad-type, when
   raising tuples in the form 'raise (ZeroDivisionError, None)'.

 * Fix a false positive with invalid-slots-objects, where t

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