Update astroid version to 3.1.0 (#9457)

* Update astroid version to 3.1.0
* Fix SyntaxError test outputs
* Fix self tests
* Prevent `invalid-name` for PEP 695 nodes

Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>

doc/whatsnew/fragments/9196.feature

@@ -0,0 +1,3 @@
+Check ``TypeAlias`` and ``TypeVar`` (PEP 695) nodes for ``invalid-name``.
+
+Refs #9196

doc/whatsnew/fragments/9457.internal

@@ -0,0 +1,3 @@
+Update astroid version to 3.1.0.
+
+Refs #9457

pylint/checkers/base/name_checker/checker.py

@@ -409,6 +409,12 @@ def visit_assignname(  # pylint: disable=too-many-branches
         if isinstance(assign_type, nodes.Comprehension):
             self._check_name("inlinevar", node.name, node)
 
+        elif isinstance(assign_type, nodes.TypeVar):
+            self._check_name("typevar", node.name, node)
+
+        elif isinstance(assign_type, nodes.TypeAlias):
+            self._check_name("typealias", node.name, node)
+
         # Check names defined in module scope
         elif isinstance(frame, nodes.Module):
             # Check names defined in Assign nodes
@@ -625,6 +631,9 @@ def _check_typevar(self, name: str, node: nodes.AssignName) -> None:
                 node.assign_type().value.elts[node.parent.elts.index(node)].keywords
             )
             args = node.assign_type().value.elts[node.parent.elts.index(node)].args
+        else:  # PEP 695 generic type nodes
+            keywords = ()
+            args = ()
 
         variance = TypeVarVariance.invariant
         name_arg = None

pyproject.toml

@@ -41,7 +41,7 @@ dependencies    = [
     # Also upgrade requirements_test_min.txt.
     # Pinned to dev of second minor update to allow editable installs and fix primer issues,
     # see https://github.com/pylint-dev/astroid/issues/1341
-    "astroid>=3.0.3,<=3.1.0-dev0",
+    "astroid>=3.1.0,<=3.2.0-dev0",
     "isort>=4.2.5,<6,!=5.13.0",
     "mccabe>=0.6,<0.8",
     "tomli>=1.1.0;python_version<'3.11'",

requirements_test_min.txt

@@ -1,6 +1,6 @@
 .[testutils,spelling]
 # astroid dependency is also defined in pyproject.toml
-astroid==3.0.3  # Pinned to a specific version for tests
+astroid==3.1.0  # Pinned to a specific version for tests
 typing-extensions~=4.9
 py~=1.11.0
 pytest~=7.4

tests/functional/i/import_error.txt

@@ -1,6 +1,6 @@
 import-error:3:0:3:22::Unable to import 'totally_missing':UNDEFINED
 import-error:21:4:21:26::Unable to import 'maybe_missing_2':UNDEFINED
 no-name-in-module:33:0:33:49::No name 'syntax_error' in module 'functional.s.syntax':UNDEFINED
-syntax-error:33:0:None:None::Cannot import 'functional.s.syntax.syntax_error' due to 'invalid syntax (<unknown>, line 1)':HIGH
+syntax-error:33:0:None:None::Cannot import 'functional.s.syntax.syntax_error' due to 'invalid syntax (functional.s.syntax.syntax_error, line 1)':HIGH
 multiple-imports:78:0:78:15::Multiple imports on one line (foo, bar):UNDEFINED
 import-error:96:4:96:15::Unable to import 'foo2':UNDEFINED

tests/functional/s/syntax/syntax_error.txt

@@ -1 +1 @@
-syntax-error:1:5:None:None::"Parsing failed: 'invalid syntax (<unknown>, line 1)'":HIGH
+syntax-error:1:5:None:None::"Parsing failed: 'invalid syntax (syntax_error, line 1)'":HIGH

tests/functional/t/type/typealias_naming_style_py312.py

@@ -0,0 +1,4 @@
+"""PEP 695 generic typing nodes"""
+
+type Point[T] = tuple[T, ...]
+type point[T] = tuple[T, ...]  # [invalid-name]

tests/functional/t/type/typealias_naming_style_py312.rc

@@ -0,0 +1,2 @@
+[testoptions]
+min_pyver=3.12

tests/functional/t/type/typealias_naming_style_py312.txt

@@ -0,0 +1 @@
+invalid-name:4:5:4:10::"Type alias name ""point"" doesn't conform to predefined naming style":HIGH

tests/functional/t/type/typevar_naming_style_py312.py

@@ -0,0 +1,4 @@
+"""PEP 695 generic typing nodes"""
+
+type Point[T] = tuple[T, ...]
+type Point[t] = tuple[t, ...]  # [invalid-name]

tests/functional/t/type/typevar_naming_style_py312.rc

@@ -0,0 +1,2 @@
+[testoptions]
+min_pyver=3.12

tests/functional/t/type/typevar_naming_style_py312.txt

@@ -0,0 +1 @@
+invalid-name:4:11:4:12::"Type variable name ""t"" doesn't conform to predefined naming style":HIGH

tests/functional/u/used/used_before_assignment.py

@@ -132,15 +132,15 @@ def turn_on2(**kwargs):
 # Variables guarded by the same test when used.
 
 # Always false
-if __name__ == "__main__":
+if 1 in []:
     PERCENT = 20
     SALE = True
 
-if __name__ == "__main__":
+if 1 in []:
     print(PERCENT)
 
 # Different test
-if __name__ is None:
+if 1 in [1]:
     print(SALE)  # [used-before-assignment]
 
 

tests/test_self.py

@@ -372,7 +372,7 @@ def test_json_report_when_file_has_syntax_error(self) -> None:
             assert message[key] == value
         msg = message["message"].lower()
         assert any(x in msg for x in ("expected ':'", "invalid syntax"))
-        assert "<unknown>" in msg
+        assert "syntax_error" in msg
         assert "line 1" in msg
 
     def test_json_report_when_file_is_missing(self) -> None:
@@ -610,7 +610,7 @@ def foobar(arg):
 
     def test_stdin_syntax_error(self) -> None:
         expected_output = """************* Module a
-a.py:1:4: E0001: Parsing failed: 'invalid syntax (<unknown>, line 1)' (syntax-error)"""
+a.py:1:4: E0001: Parsing failed: 'invalid syntax (a, line 1)' (syntax-error)"""
         with mock.patch(
             "pylint.lint.pylinter._read_stdin", return_value="for\n"
         ) as mock_stdin: