Fix a crash involving properties within try ... except blocks

ChangeLog

@@ -118,6 +118,10 @@ Release date: TBA
 
   Closes PyCQA/pylint#7092
 
+* Fix a crash involving properties within ``try ... except`` blocks.
+
+  Closes PyCQA/pylint#6592
+
 * Prevent creating ``Instance`` objects that proxy other ``Instance``s when there is
   ambiguity (or user error) in calling ``__new__(cls)``.
 

astroid/inference.py

@@ -1152,6 +1152,9 @@ def infer_functiondef(
     property_already_in_parent_locals = self.name in parent_frame.locals and any(
         isinstance(val, objects.Property) for val in parent_frame.locals[self.name]
     )
+    # We also don't want to pass parent if the definition is within a Try node
+    if isinstance(self.parent, (nodes.TryExcept, nodes.TryFinally)):
+        property_already_in_parent_locals = True
 
     prop_func = objects.Property(
         function=self,

tests/unittest_scoped_nodes.py

@@ -2435,6 +2435,30 @@ class Derived(Parent):
     assert isinstance(inferred, objects.Property)
 
 
+def test_property_in_body_of_try() -> None:
+    """Regression test for https://github.com/PyCQA/pylint/issues/6596."""
+    node: nodes.Return = builder._extract_single_node(
+        """
+    def myfunc():
+        try:
+
+            @property
+            def myfunc():
+                return None
+
+        except TypeError:
+            pass
+
+        @myfunc.setter
+        def myfunc():
+            pass
+
+        return myfunc() #@
+    """
+    )
+    next(node.value.infer())
+
+
 def test_issue940_enums_as_a_real_world_usecase() -> None:
     node = builder.extract_node(
         """