diff --git a/jedi/evaluate/__init__.py b/jedi/evaluate/__init__.py
index 8fbacdae..944385c5 100644
--- a/jedi/evaluate/__init__.py
+++ b/jedi/evaluate/__init__.py
@@ -73,6 +73,7 @@ import itertools
 from jedi._compatibility import next, hasattr, unicode
 from jedi.parser import representation as pr
 from jedi.parser.tokenize import Token
+from jedi.parser import fast
 from jedi import debug
 from jedi.evaluate import representation as er
 from jedi.evaluate import imports
@@ -136,7 +137,10 @@ class Evaluator(object):
             # `=` is always the last character in aug assignments -> -1
             operator = operator[:-1]
             name = str(expr_list[0].name)
-            left = self.find_types(stmt.parent, name, stmt.start_pos)
+            parent = stmt.parent
+            if isinstance(parent, (pr.SubModule, fast.Module)):
+                parent = er.ModuleWrapper(self, parent)
+            left = self.find_types(parent, name, stmt.start_pos)
             if isinstance(stmt.parent, pr.ForFlow):
                 # iterate through result and add the values, that's possible
                 # only in for loops without clutter, because they are
diff --git a/jedi/evaluate/finder.py b/jedi/evaluate/finder.py
index a01bfdaf..a3000617 100644
--- a/jedi/evaluate/finder.py
+++ b/jedi/evaluate/finder.py
@@ -67,8 +67,6 @@ class NameFinder(object):
             return get_names_of_scope(self._evaluator, self.scope, self.position)
         else:
             try:
-                # Use scope generators if parts of it (e.g. sub classes or star
-                # imports).
                 gen = self.scope.scope_names_generator
             except AttributeError:
                 if isinstance(self.scope, er.Class):
@@ -79,7 +77,7 @@ class NameFinder(object):
                     names = _get_defined_names_for_position(self.scope, self.position)
                 return iter([(self.scope, names)])
             else:
-                return gen()
+                return gen(self.position)
 
     def filter_name(self, scope_names_generator):
         """
diff --git a/jedi/evaluate/iterable.py b/jedi/evaluate/iterable.py
index 802b2e22..36b432e1 100644
--- a/jedi/evaluate/iterable.py
+++ b/jedi/evaluate/iterable.py
@@ -57,7 +57,7 @@ class Generator(use_metaclass(CachedMetaClass, pr.Base)):
             else:
                 yield name
 
-    def scope_names_generator(self):
+    def scope_names_generator(self, position=None):
         yield self, self._get_defined_names()
 
     def iter_content(self):
@@ -175,7 +175,7 @@ class Array(use_metaclass(CachedMetaClass, pr.Base)):
         values = [self._array.values[index]]
         return _follow_values(self._evaluator, values)
 
-    def scope_names_generator(self):
+    def scope_names_generator(self, position=None):
         """
         This method generates all `ArrayMethod` for one pr.Array.
         It returns e.g. for a list: append, pop, ...
diff --git a/jedi/evaluate/representation.py b/jedi/evaluate/representation.py
index ea1eb6d3..709aa891 100644
--- a/jedi/evaluate/representation.py
+++ b/jedi/evaluate/representation.py
@@ -549,14 +549,14 @@ class ModuleWrapper(use_metaclass(CachedMetaClass, pr.Module)):
         self._module = module
 
     def scope_names_generator(self, position=None):
-        yield self, pr.filter_after_position(self.get_defined_names(), position)
-        yield self, self.module_attributes()
+        yield self, pr.filter_after_position(self._module.get_defined_names(), position)
+        yield self, self._module_attributes()
         sub_modules = self._sub_modules()
         if sub_modules:
             yield self, self._sub_modules()
 
     @memoize_default()
-    def module_attributes(self):
+    def _module_attributes(self):
         names = ['__file__', '__package__', '__doc__', '__name__', '__version__']
         # All the additional module attributes are strings.
         parent = Instance(self._evaluator, compiled.create(self._evaluator, str))