diff --git a/jedi/inference/finder.py b/jedi/inference/finder.py
index a162fe21..aac58732 100644
--- a/jedi/inference/finder.py
+++ b/jedi/inference/finder.py
@@ -32,8 +32,8 @@ def filter_name(filters, name_or_str):
     """
     string_name = name_or_str.value if isinstance(name_or_str, Name) else name_or_str
     names = []
-    for filter_ in filters:
-        names = filter_.get(string_name)
+    for filter in filters:
+        names = filter.get(string_name)
         if names:
             break
 
diff --git a/jedi/inference/value/instance.py b/jedi/inference/value/instance.py
index 57f46de5..6afbb751 100644
--- a/jedi/inference/value/instance.py
+++ b/jedi/inference/value/instance.py
@@ -495,9 +495,7 @@ class SelfName(TreeNameDefinition):
 
     @property
     def parent_context(self):
-        _instance = self._instance
-        _context = _instance.create_instance_context(self.class_context, self.tree_name)
-        return _context
+        return self._instance.create_instance_context(self.class_context, self.tree_name)
 
     def get_defining_qualified_value(self):
         return self._instance
@@ -507,9 +505,9 @@ class SelfName(TreeNameDefinition):
         if stmt is not None:
             if stmt.children[1].type == "annassign":
                 from jedi.inference.gradual.annotation import infer_annotation
-                _parent_context = self.parent_context
-                _infer = infer_annotation(_parent_context, stmt.children[1].children[1])
-                values = _infer.execute_annotation()
+                values = infer_annotation(
+                    self.parent_context, stmt.children[1].children[1]
+                ).execute_annotation()
                 if values:
                     return values
         return super().infer()