Don't document module level class attribute assignments

Fixes #341

CHANGELOG.rst

@@ -14,6 +14,9 @@ Bug Fixes
 ^^^^^^^^^
 * `#330 <https://github.com/readthedocs/sphinx-autoapi/issues/330>`: (Python)
   Render tuple values as tuples, not lists.
+* `#341 <https://github.com/readthedocs/sphinx-autoapi/issues/341>`: (Python)
+  Fix module level assignments to class attributes being documented as
+  module level attributes.
 
 Trivial/Internal Changes
 ^^^^^^^^^^^^^^^^^^^^^^^^

autoapi/mappers/python/parser.py

@@ -49,9 +49,20 @@ def parse_file_in_namespace(self, file_path, dir_root):
         )
 
     def parse_annassign(self, node):
-        return self.parse_assign(node)
+        # Don't document module level assignments to class attributes
+        if isinstance(node.target, astroid.nodes.AssignAttr):
+            return []
+
+        return self._parse_assign(node)
 
     def parse_assign(self, node):
+        # Don't document module level assignments to class attributes
+        if any(isinstance(target, astroid.nodes.AssignAttr) for target in node.targets):
+            return []
+
+        return self._parse_assign(node)
+
+    def _parse_assign(self, node):
         doc = ""
         doc_node = node.next_sibling()
         if isinstance(doc_node, astroid.nodes.Expr) and isinstance(
@@ -187,7 +198,7 @@ def parse_functiondef(self, node):  # pylint: disable=too-many-branches
         if node.name == "__init__":
             for child in node.get_children():
                 if isinstance(child, (astroid.nodes.Assign, astroid.nodes.AnnAssign)):
-                    child_data = self.parse_assign(child)
+                    child_data = self._parse_assign(child)
                     result.extend(data for data in child_data if data["doc"])
 
         return result

tests/python/pyexample/example/example.py

@@ -105,6 +105,9 @@ def method_google_unicode(self):
         return "google"
 
 
+Foo.bar = "dinglebop"
+
+
 def decorator_okay(func):
     """This decorator should parse okay."""
 

tests/python/test_pyintegration.py

@@ -109,6 +109,10 @@ def check_integration(self, example_path):
         # Lists should be rendered as lists, not tuples
         assert "['c', 'd']" in example_file
 
+        # Assigning a class level attribute at the module level
+        # should not get documented as a module level attribute.
+        assert "dinglebop" not in example_file
+
         index_path = "_build/text/index.txt"
         with io.open(index_path, encoding="utf8") as index_handle:
             index_file = index_handle.read()