support bare exceptions

ast_scope/annotator.py

@@ -190,9 +190,9 @@ def visit_Name(self, node: ast.Name):
         GrabVariable(self.scope, node, self.annotation_dict).generic_visit(node)
 
     def visit_ExceptHandler(self, node: ast.ExceptHandler):
-        assert node.name
-        self.annotate_intermediate_scope(node, node.name, True)
-        self.scope.modify(node.name)
+        if node.name is not None:
+            self.annotate_intermediate_scope(node, node.name, True)
+            self.scope.modify(node.name)
         visit_all(self, node.type, node.body)
 
     def visit_alias(self, node: ast.alias):

ast_scope/pull_scope.py

@@ -85,8 +85,9 @@ def visit_Lambda(self, node: ast.Lambda):
         super().generic_visit(node)
 
     def visit_ExceptHandler(self, node: ast.ExceptHandler):
-        scope = self.pull_scope(node)
-        scope.add_exception(node)
+        if node.name is not None:
+            scope = self.pull_scope(node)
+            scope.add_exception(node)
         super().generic_visit(node)
 
     def visit_comprehension_generic(

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="ast_scope",  # Replace with your own username
-    version="0.5.1",
+    version="0.5.2",
     author="Kavi Gupta",
     author_email="ast_scope@kavigupta.org",
     description="Annotates a Python AST with the scope of symbols.",

tests/exception_test.py

@@ -2,13 +2,40 @@
 
 
 class ExceptionTests(DisplayAnnotatedTestCase):
-    def test_multiple_arguments(self):
+
+    def test_basic_named(self):
+        self.assertAnnotationWorks(
+            """
+            {g}def f():
+                try:
+                    {~f@1:0}z = 1
+                {~f@1:0}except {g}Exception as e:
+                    {~f@1:0}x = {~f@1:0}e
+                finally:
+                    {~f@1:0}y = 1
+            """
+        )
+
+    def test_no_name(self):
+        self.assertAnnotationWorks(
+            """
+            {g}def f():
+                try:
+                    {~f@1:0}z = 1
+                except {g}Exception:
+                    {~f@1:0}x = 1
+            """
+        )
+
+    def test_multiple_exceptions(self):
         self.assertAnnotationWorks(
             """
             {g}def f():
                 try:
-                    pass
+                    {~f@1:0}z = 1
                 {~f@1:0}except {g}Exception as e:
-                    pass
+                    {~f@1:0}x = {~f@1:0}e
+                {~f@1:0}except {g}ValueError as e2:
+                    {~f@1:0}y = {~f@1:0}e2
             """
         )