Set context boundnode for binary operation to correct inference

2 files changed, 11 insertions, 0 deletions

diff --git a/astroid/inference.py b/astroid/inference.py
index 0a55b6e8..a0a933eb 100644
--- a/astroid/inference.py
+++ b/astroid/inference.py
@@ -520,6 +520,8 @@ def _is_not_implemented(const):
 def _invoke_binop_inference(instance, opnode, op, other, context, method_name):
     """Invoke binary operation inference on the given instance."""
     methods = dunder_lookup.lookup(instance, method_name)
+    if context is not None:
+        context.boundnode = instance
     method = methods[0]
     inferred = next(method.infer(context=context))
     return instance.infer_binary_op(opnode, op, other, context, inferred)
diff --git a/astroid/tests/unittest_inference.py b/astroid/tests/unittest_inference.py
index b4e97923..29748507 100644
--- a/astroid/tests/unittest_inference.py
+++ b/astroid/tests/unittest_inference.py
@@ -895,6 +895,15 @@ class InferenceTest(resources.SysPathSetup, unittest.TestCase):
         self.assertEqual('module.C', should_be_C[0].qname())
         self.assertEqual('module.D', should_be_D[0].qname())
 
+    def test_factory_methods_inside_binary_operation(self):
+        node = extract_node("""
+        from pathlib import Path
+        h = Path("/home")
+        u = h / "user"
+        u #@
+        """)
+        assert next(node.infer()).qname() == 'pathlib.Path'
+
     def test_import_as(self):
         code = '''
             import os.path as osp