What's New In Pylint 1.9¶
Summary -- Release highlights¶
None so far
A new Python 3 checker was added to warn about the removed
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
from urllib import urlencode
Instead the previous code should use
six.movesto import a module in a Python 2 and 3 compatible fashion:
from six.moves.urllib.parse import urlencode
To have this working on Python 3 as well, please use the
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:
a = ur'...'
Added a new
deprecated-sys-functioncheck, emitted when accessing removed
xreadlines-attributecheck, emitted when the
xreadlines()attribute is accessed on a file object.
Added two new Python 3 porting checks,
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.
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
defaultdictand subclasses of
dictare now handled for dict-iter-* checks. That means that the following code will now emit warnings for when
iteritemsand friends are accessed:
some_dict = defaultdict(list) ... some_dict.iterkeys()
Enum classes no longer trigger
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
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.