Releases · pylint-dev/astroid

Include PEP 695 (Python 3.12) generic type syntax nodes in get_children(),
allowing checkers to visit them.
Refs pylint-dev/pylint#9193
Add __main__ as a possible inferred value for __name__ to improve
control flow inference around if __name__ == "__main__": guards.
Closes #2071
Following a deprecation period, the names arg to the Import constructor and
the op arg to the BoolOp constructor are now required, and the doc args
to the PartialFunction and Property constructors have been removed (call
postinit(doc_node=...) instead.)
Following a deprecation announced in astroid 1.5.0, the alias AstroidBuildingException is removed in favor of AstroidBuildingError.
Include modname in AST warnings. Useful for invalid escape sequence warnings
with Python 3.12.
RecursionError is now trapped and logged out as UserWarning during astroid node transformations with instructions about raising the system recursion limit.
Closes pylint-dev/pylint#8842
Suppress SyntaxWarning for invalid escape sequences on Python 3.12 when parsing modules.
Closes pylint-dev/pylint#9322

Add support for Python 3.12, including PEP 695 type parameter syntax.

Closes #2201
Remove support for Python 3.7.

Refs #2137
Use the global inference cache when inferring, even without an explicit
InferenceContext. This is a significant performance improvement given how
often methods default to None for the context argument. (Linting astroid
itself now takes ~5% less time on Python 3.12; other projects requiring more
complex inference calculations will see greater speedups.)

Refs #529
Following a deprecation period starting in astroid 2.7.0, the astroid.node_classes
and astroid.scoped_nodes modules have been removed in favor of astroid.nodes.node_classes
and astroid.nodes.scoped_nodes.

Closes #1072
Following a deprecation period starting in astroid 2.12.0, the astroid.mixins module
has been removed in favor of astroid.nodes._base_nodes (private).

Refs #1633
Return all existing arguments when calling Arguments.arguments(). This also means find_argname will now
use the whole list of arguments for its search.

Closes #2213
Exclude class attributes from the __members__ container of an Enum class when they are
nodes.AnnAssign nodes with no assigned value.

Refs pylint-dev/pylint#7402
Remove @cached and @cachedproperty decorator (just use @cached_property from the stdlib).

Closes #1780
Refs #2140
Remove the inference module. Node inference methods are now in the module
defining the node, rather than being associated to the node afterward.

Closes #679
Move LookupMixIn to astroid.nodes._base_nodes and make it private.
Remove the shims for OperationError, BinaryOperationError, and UnaryOperationError
in exceptions. They were moved to util in astroid 1.5.0.
Move safe_infer() from helpers to util. This avoids some circular imports.
Reduce file system access in ast_from_file().
Reduce time to import astroid by delaying astroid_bootstrapping() until
the first instantiation of AstroidBuilder.

Closes #2161
Make igetattr() idempotent. This addresses some reports of varying results
when running pylint with --jobs.

Closes pylint-dev/pylint#4356
Refs #7
Fix incorrect cache keys for inference results, thereby correctly inferring types
for calls instantiating types dynamically.

Closes #1828
Closes pylint-dev/pylint#7464
Closes pylint-dev/pylint#8074
Fix interrupted InferenceContext call chains, thereby addressing performance
problems when linting sqlalchemy.

Closes pylint-dev/pylint#8150
nodes.FunctionDef no longer inherits from nodes.Lambda.
This is a breaking change but considered a bug fix as the nodes did not share the same
API and were not interchangeable.

We have tried to minimize the amount of breaking changes caused by this change
but some are unavoidable.
infer_call_result now shares the same interface across all implementations. Namely:
```
def infer_call_result(
              self,
              caller: SuccessfulInferenceResult | None,
              context: InferenceContext | None = None,
          ) -> Iterator[InferenceResult]:
```
This is a breaking change for nodes.FunctionDef where previously caller had a default of
None. Passing None again will not create a behaviour change.
The breaking change allows us to better type and re-use the method within astroid.
Improved signature of the __init__ and __postinit__ methods of most nodes.
This includes making lineno, col_offset, end_lineno, end_col_offset and parent
required arguments for nodes.NodeNG and its subclasses.
For most other nodes, arguments of their __postinit__ methods have been made required to better
represent how they would normally be constructed by the standard library ast module.
The following nodes were changed or updated:
- nodes.AnnAssign
- nodes.Arguments
- nodes.Assign
- nodes.AssignAttr
- nodes.AssignName
- nodes.Attribute
- nodes.AugAssign
- nodes.Await
- nodes.BaseContainer
- nodes.BinOp
- nodes.Call
- nodes.ClassDef
- nodes.Compare
- nodes.Comprehension
- nodes.Decorators
- nodes.Delete
- nodes.DelAttr
- nodes.DelName
- nodes.Dict
- nodes.DictComp
- nodes.ExceptHandler
- nodes.Expr
- nodes.For
- nodes.FunctionDef
- nodes.GeneratorExp
- nodes.If
- nodes.IfExp
- nodes.Keyword
- nodes.Lambda
- nodes.ListComp
- nodes.Module
- nodes.Name
- nodes.NodeNG
- nodes.Raise
- nodes.Return
- nodes.SetComp
- nodes.Slice
- nodes.Starred
- objects.Super, we also added the call parameter to its __init__ method.
- nodes.Subscript
- nodes.UnaryOp
- nodes.While
- nodes.Yield
These changes involve breaking changes to their API but should be considered bug fixes. We
now make arguments required when they are instead of always providing defaults.
nodes.If.self.is_orelse has been removed as it was never set correctly and therefore
provided a false value.
Remove dependency on wrapt.
Remove dependency on lazy_object_proxy. This includes the removal
of the associated lazy_import, lazy_descriptor and proxy_alias utility functions.
CallSite._unpack_args and CallSite._unpack_keywords now use safe_infer() for
better inference and fewer false positives.

Closes pylint-dev/pylint#8544
Add attr.Factory to the recognized class attributes for classes decorated with attrs.

Closes pylint-dev/pylint#4341
infer_property() now observes the same property-specific workaround as infer_functiondef.

Refs #1490
Remove unused and / or deprecated constants:
- astroid.bases.BOOL_SPECIAL_METHOD
- astroid.bases.BUILTINS
- astroid.const.BUILTINS
- astroid.const.PY38_PLUS
- astroid.const.Load
- astroid.const.Store
- astroid.const.Del
Refs #2141
frame() raises ParentMissingError and statement() raises StatementMissing for
missing parents regardless of the value of the future argument (which gave this behavior
already).

The future argument to each method is deprecated and will be removed in astroid 4.0.

Refs #1217
Remove deprecated Ellipsis, ExtSlice, Index nodes.

Refs #2152
Remove deprecated is_sys_guard and is_typing_guard methods.

Refs #2153
Remove deprecated doc attribute for Module, ClassDef, and FunctionDef.
Use the doc_node attribute instead.

Refs #2154
Add new nodes.Try to better match Python AST. Replaces the TryExcept
and TryFinally nodes which have been removed.
Publicize NodeNG.repr_name() to facilitate finding a node's nice name.

Refs pylint-dev/pylint#8598
Fix false positives for no-member and invalid-name when using the _name_, _value_ and _ignore_ sunders in Enums.

Closes pylint-dev/pylint#9015

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