Migrate to pylint v3

.github/workflows/python-app.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["macos-11", ubuntu-20.04, "windows-latest"]
-        python_version: ["3.7", "3.8", "3.9", "3.10", "3.11-dev"]
+        python_version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     steps:
     - uses: actions/checkout@v2
     - name: Setup python

perflint/comprehension_checker.py

@@ -1,7 +1,6 @@
 from astroid import nodes
 from pylint.checkers import BaseChecker
 from pylint.checkers import utils as checker_utils
-from pylint.interfaces import IAstroidChecker
 from astroid.helpers import safe_infer
 
 
@@ -10,8 +9,6 @@ class ComprehensionChecker(BaseChecker):
     Check for comprehension usage
     """
 
-    __implements__ = IAstroidChecker
-
     name = "comprehension-checker"
     priority = -1
     msgs = {
@@ -35,7 +32,7 @@ class ComprehensionChecker(BaseChecker):
     def visit_for(self, node: nodes.For):
         pass
 
-    @checker_utils.check_messages(
+    @checker_utils.only_required_for_messages(
         "use-list-comprehension", "use-dict-comprehension", "use-list-copy"
     )
     def leave_for(self, node: nodes.For):

perflint/for_loop_checker.py

@@ -3,7 +3,6 @@
 from astroid.helpers import safe_infer
 from pylint.checkers import BaseChecker
 from pylint.checkers import utils as checker_utils
-from pylint.interfaces import IAstroidChecker
 
 iterable_types = (
     nodes.Tuple,
@@ -52,8 +51,6 @@ class ForLoopChecker(BaseChecker):
     Check for poor for-loop usage.
     """
 
-    __implements__ = IAstroidChecker
-
     name = "for-loop-checker"
     priority = -1
     msgs = {
@@ -69,7 +66,7 @@ class ForLoopChecker(BaseChecker):
         ),
     }
 
-    @checker_utils.check_messages(
+    @checker_utils.only_required_for_messages(
         "unnecessary-list-cast", "incorrect-dictionary-iterator"
     )
     def visit_for(self, node: nodes.For) -> None:
@@ -130,8 +127,6 @@ class LoopInvariantChecker(BaseChecker):
     Check for poor for-loop usage.
     """
 
-    __implements__ = IAstroidChecker
-
     name = "loop-invariant-checker"
     priority = -1
     msgs = {
@@ -170,7 +165,7 @@ def __init__(self, linter=None):
         self._loop_consts: List[List[nodes.Const]] = []
         self._ignore: List[nodes.NodeNG] = []
 
-    @checker_utils.check_messages("loop-invariant-statement")
+    @checker_utils.only_required_for_messages("loop-invariant-statement")
     def visit_for(self, node: nodes.For) -> None:
         """Visit for loop bodies."""
         self._loop_level += 1
@@ -184,7 +179,7 @@ def visit_for(self, node: nodes.For) -> None:
         self._loop_consts.append([])
         self._ignore.append(node.iter)
 
-    @checker_utils.check_messages("loop-invariant-statement")
+    @checker_utils.only_required_for_messages("loop-invariant-statement")
     def visit_while(self, node: nodes.While) -> None:
         """Visit while loop bodies."""
         self._loop_level += 1
@@ -214,11 +209,11 @@ def visit_dict(self, node: nodes.Dict) -> None:
         ):
             self._ignore.append(node)
 
-    @checker_utils.check_messages("loop-invariant-statement")
+    @checker_utils.only_required_for_messages("loop-invariant-statement")
     def leave_for(self, node: nodes.For) -> None:
         self._leave_loop(node)
 
-    @checker_utils.check_messages("loop-invariant-statement")
+    @checker_utils.only_required_for_messages("loop-invariant-statement")
     def leave_while(self, node: nodes.While) -> None:
         self._leave_loop(node)
 
@@ -303,7 +298,7 @@ def visit_augassign(self, node: nodes.AugAssign) -> None:
         if isinstance(node.target, nodes.AssignName):
             self._loop_assignments[-1].add(node.target.name)
 
-    @checker_utils.check_messages("loop-global-usage")
+    @checker_utils.only_required_for_messages("loop-global-usage")
     def visit_name(self, node: nodes.Name) -> None:
         """Look for global names"""
         if self._loop_names:
@@ -338,12 +333,12 @@ def visit_call(self, node: nodes.Call) -> None:
         if isinstance(node.func.expr, nodes.Name):
             self._loop_assignments[-1].add(node.func.expr.name)
 
-    @checker_utils.check_messages("loop-try-except-usage")
-    def visit_tryexcept(self, node: nodes.TryExcept) -> None:
+    @checker_utils.only_required_for_messages("loop-try-except-usage")
+    def visit_tryexcept(self, node: nodes.Try) -> None:
         if self._loop_level > 0:
             self.add_message("loop-try-except-usage", node=node)
 
-    @checker_utils.check_messages("memoryview-over-bytes")
+    @checker_utils.only_required_for_messages("memoryview-over-bytes")
     def visit_subscript(self, node: nodes.Subscript) -> None:
         if self._loop_level == 0:
             return
@@ -360,7 +355,7 @@ def visit_subscript(self, node: nodes.Subscript) -> None:
         ):
             self.add_message("memoryview-over-bytes", node=node)
 
-    @checker_utils.check_messages("dotted-import-in-loop")
+    @checker_utils.only_required_for_messages("dotted-import-in-loop")
     def visit_attribute(self, node: nodes.Attribute) -> None:
         if self._loop_level == 0:
             return

perflint/list_checker.py

@@ -2,16 +2,13 @@
 from astroid import nodes
 from pylint.checkers import BaseChecker
 from pylint.checkers import utils as checker_utils
-from pylint.interfaces import IAstroidChecker
 
 
 class ListChecker(BaseChecker):
     """
     Check for inefficient list usage
     """
 
-    __implements__ = IAstroidChecker
-
     name = 'list-checker'
     priority = -1
     msgs = {
@@ -42,14 +39,14 @@ def _raise_for_scope(self):
         for _assignment in _lists.values():
             self.add_message("use-tuple-over-list", node=_assignment.parent.value)
 
-    @checker_utils.check_messages("use-tuple-over-list")
+    @checker_utils.only_required_for_messages("use-tuple-over-list")
     def leave_module(self, node: nodes.Module):
         self._raise_for_scope()
 
     def visit_functiondef(self, node: nodes.FunctionDef):
         self._lists_to_watch.append({})
 
-    @checker_utils.check_messages("use-tuple-over-list")
+    @checker_utils.only_required_for_messages("use-tuple-over-list")
     def leave_functiondef(self, node: nodes.FunctionDef):
         self._raise_for_scope()
 

pyproject.toml

@@ -8,7 +8,8 @@ authors = [{name = "Anthony Shaw"}]
 readme = "README.md"
 classifiers = ["License :: OSI Approved :: MIT License"]
 dynamic = ["version", "description"]
-dependencies = ["pylint >= 2.12.0, < 3.0"]
+dependencies = ["pylint >=3.0.0,<4.0.0"]
+requires-python = ">=3.8"
 
 [project.urls]
 Home = "https://github.com/tonybaloney/perflint"