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

Pylint's ChangeLog

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

What's New in Pylint 1.8?

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

* 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

What's New in Pylint 1.7.1?

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

Release date: |TBA|

* 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

What's New in Pylint 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

What's new in Pylint 1.6.3?

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

Release date: 2016-07-18

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

Close #998

What's new in Pylint 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

What's new in Pylint 1.6.1?

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

Release date: 2016-07-07

* Use environment markers for supporting conditional dependencies.

What's New in Pylint 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.

What's New in Pylint 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

What's New in Pylint 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.

What's New in Pylint 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.

What's New in Pylint 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.

What's New in Pylint 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.

What's New in Pylint 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