Merge upstream tag v2.11.1.

Test: None
Bug: http://b/206656351
Change-Id: I7831112fa3014bf7998432f9e1ac96be18fca60c

1 files changed, 92 insertions, 0 deletions

diff --git a/doc/whatsnew/1.9.rst b/doc/whatsnew/1.9.rst
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+**************************
+  What's New In Pylint 1.9
+**************************
+
+:Release: 1.9
+:Date: 2018-05-15
+
+
+Summary -- Release highlights
+=============================
+
+* None so far
+
+New checkers
+============
+
+* A new Python 3 checker was added to warn about the removed ``operator.div`` function.
+
+* A new Python 3 checker was added to warn about accessing functions that have been
+  moved from the urllib module in corresponding subpackages, such as ``urllib.request``.
+
+  .. code-block:: python
+
+      from urllib import urlencode
+
+  Instead the previous code should use ``urllib.parse`` or ``six.moves`` to import a
+  module in a Python 2 and 3 compatible fashion:
+
+  .. code-block:: python
+
+      from six.moves.urllib.parse import urlencode
+
+
+  To have this working on Python 3 as well, please use the ``six`` library:
+
+  .. code-block:: python
+
+      six.reraise(Exception, "value", tb)
+
+
+* A new check was added to warn about using unicode raw string literals. This is
+  a syntax error in Python 3:
+
+  .. code-block:: python
+
+      a = ur'...'
+
+* Added a new ``deprecated-sys-function`` check, emitted when accessing removed ``sys`` members.
+
+* Added ``xreadlines-attribute`` check, emitted when the ``xreadlines()`` attribute is accessed
+  on a file object.
+
+* 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.
+
+  .. code-block:: python
+
+      try:
+        1/0
+      except ZeroDivisionError as exc:
+         ...
+      print(exc) # This will raise a NameError on Python 3
+
+      [i for i in some_iterator if some_condition(i)]
+      print(i) # This will raise a NameError on Python 3
+
+
+Other Changes
+=============
+
+* ``defaultdict`` and subclasses of ``dict`` are now handled for `dict-iter-*` checks. That
+  means that the following code will now emit warnings for when ``iteritems`` and friends
+  are accessed:
+
+  .. code-block:: python
+
+      some_dict = defaultdict(list)
+      ...
+      some_dict.iterkeys()
+
+* Enum classes no longer trigger ``too-few-methods``
+
+* Special methods now count towards ``too-few-methods``,
+  and are considered part of the public API.
+  They are still not counted towards the number of methods for
+  ``too-many-methods``.
+
+* docparams allows abstract methods to document returns documentation even
+  if the default implementation does not return something.
+  They also no longer need to document raising a NotImplementedError.