Various TryStar fixes (#2142)

6 files changed, 30 insertions, 4 deletions

diff --git a/astroid/__init__.py b/astroid/__init__.py
index 605a8b48..bcb0c2c2 100644
--- a/astroid/__init__.py
+++ b/astroid/__init__.py
@@ -165,6 +165,7 @@ from astroid.nodes import (  # pylint: disable=redefined-builtin (Ellipsis)
     Subscript,
     TryExcept,
     TryFinally,
+    TryStar,
     Tuple,
     UnaryOp,
     Unknown,
diff --git a/astroid/node_classes.py b/astroid/node_classes.py
index 9ea1e8d2..64709632 100644
--- a/astroid/node_classes.py
+++ b/astroid/node_classes.py
@@ -76,6 +76,7 @@ from astroid.nodes.node_classes import (  # pylint: disable=redefined-builtin (E
     Subscript,
     TryExcept,
     TryFinally,
+    TryStar,
     Tuple,
     UnaryOp,
     Unknown,
diff --git a/astroid/nodes/__init__.py b/astroid/nodes/__init__.py
index b527ff7c..157aa242 100644
--- a/astroid/nodes/__init__.py
+++ b/astroid/nodes/__init__.py
@@ -197,6 +197,7 @@ ALL_NODE_CLASSES = (
     Subscript,
     TryExcept,
     TryFinally,
+    TryStar,
     Tuple,
     UnaryOp,
     Unknown,
@@ -291,6 +292,7 @@ __all__ = (
     "Subscript",
     "TryExcept",
     "TryFinally",
+    "TryStar",
     "Tuple",
     "UnaryOp",
     "Unknown",
diff --git a/astroid/nodes/as_string.py b/astroid/nodes/as_string.py
index cbd5ee17..ae55ab8b 100644
--- a/astroid/nodes/as_string.py
+++ b/astroid/nodes/as_string.py
@@ -9,6 +9,8 @@ from __future__ import annotations
 from collections.abc import Iterator
 from typing import TYPE_CHECKING
 
+from astroid import nodes
+
 if TYPE_CHECKING:
     from astroid.nodes import Const
     from astroid.nodes.node_classes import (
@@ -254,13 +256,16 @@ class AsStringVisitor:
         return ""
 
     def visit_excepthandler(self, node) -> str:
+        n = "except"
+        if isinstance(getattr(node, "parent", None), nodes.TryStar):
+            n = "except*"
         if node.type:
             if node.name:
-                excs = f"except {node.type.accept(self)} as {node.name.accept(self)}"
+                excs = f"{n} {node.type.accept(self)} as {node.name.accept(self)}"
             else:
-                excs = f"except {node.type.accept(self)}"
+                excs = f"{n} {node.type.accept(self)}"
         else:
-            excs = "except"
+            excs = f"{n}"
         return f"{excs}:\n{self._stmt_list(node.body)}"
 
     def visit_empty(self, node) -> str:
@@ -495,6 +500,17 @@ class AsStringVisitor:
             self._stmt_list(node.body), self._stmt_list(node.finalbody)
         )
 
+    def visit_trystar(self, node) -> str:
+        """return an astroid.TryStar node as string"""
+        trys = [f"try:\n{self._stmt_list(node.body)}"]
+        for handler in node.handlers:
+            trys.append(handler.accept(self))
+        if node.orelse:
+            trys.append(f"else:\n{self._stmt_list(node.orelse)}")
+        if node.finalbody:
+            trys.append(f"finally:\n{self._stmt_list(node.finalbody)}")
+        return "\n".join(trys)
+
     def visit_tuple(self, node) -> str:
         """return an astroid.Tuple node as string"""
         if len(node.elts) == 1:
diff --git a/astroid/nodes/node_ng.py b/astroid/nodes/node_ng.py
index 617f8ba4..3f8222e2 100644
--- a/astroid/nodes/node_ng.py
+++ b/astroid/nodes/node_ng.py
@@ -590,7 +590,7 @@ class NodeNG:
         yield from ()
 
     def _infer_name(self, frame, name):
-        # overridden for ImportFrom, Import, Global, TryExcept and Arguments
+        # overridden for ImportFrom, Import, Global, TryExcept, TryStar and Arguments
         pass
 
     def _infer(
diff --git a/astroid/rebuilder.py b/astroid/rebuilder.py
index 6e996def..0d409c49 100644
--- a/astroid/rebuilder.py
+++ b/astroid/rebuilder.py
@@ -507,6 +507,12 @@ class TreeRebuilder:
         ) -> nodes.TryExcept | nodes.TryFinally:
             ...
 
+        if sys.version_info >= (3, 11):
+
+            @overload
+            def visit(self, node: ast.TryStar, parent: NodeNG) -> nodes.TryStar:
+                ...
+
         @overload
         def visit(self, node: ast.Tuple, parent: NodeNG) -> nodes.Tuple:
             ...