Fix most dynamic array issues.

jedi/common/context.py

@@ -18,6 +18,7 @@ class ContextSet(object):
         Used to work with an iterable of set.
         """
         aggregated = set()
+        sets = list(sets)
         for set_ in sets:
             if isinstance(set_, ContextSet):
                 aggregated |= set_._set

jedi/evaluate/compiled/__init__.py

@@ -279,7 +279,9 @@ class CompiledObject(Context):
         return []  # Builtins don't have imports
 
     def dict_values(self):
-        return ContextSet(create(self.evaluator, v) for v in self.obj.values())
+        return ContextSet.from_iterable(
+            create(self.evaluator, v) for v in self.obj.values()
+        )
 
 
 class CompiledName(AbstractNameDefinition):

jedi/evaluate/compiled/mixed.py

@@ -12,6 +12,7 @@ from jedi.evaluate import imports
 from jedi.evaluate.context import Context
 from jedi.evaluate.cache import evaluator_function_cache
 from jedi.evaluate.compiled.getattr_static import getattr_static
+from jedi.common import ContextSet
 
 
 class MixedObject(object):
@@ -85,7 +86,9 @@ class MixedName(compiled.CompiledName):
             # PyQt4.QtGui.QStyleOptionComboBox.currentText
             # -> just set it to None
             obj = None
-        return [_create(self._evaluator, obj, parent_context=self.parent_context)]
+        return ContextSet(
+            _create(self._evaluator, obj, parent_context=self.parent_context)
+        )
 
     @property
     def api_type(self):

jedi/evaluate/imports.py

@@ -28,6 +28,7 @@ from jedi.evaluate import sys_path
 from jedi.evaluate import helpers
 from jedi.evaluate import compiled
 from jedi.evaluate import analysis
+from jedi.evaluate.utils import unite
 from jedi.evaluate.cache import evaluator_method_cache
 from jedi.evaluate.filters import AbstractNameDefinition
 from jedi.common import ContextSet, NO_CONTEXTS
@@ -66,12 +67,17 @@ def infer_import(context, tree_name, is_goto=False):
         return NO_CONTEXTS
 
     if from_import_name is not None:
-        types = types.py__getattribute__(
-            from_import_name,
-            name_context=context,
-            is_goto=is_goto,
-            analysis_errors=False
+        types = unite(
+            t.py__getattribute__(
+                from_import_name,
+                name_context=context,
+                is_goto=is_goto,
+                analysis_errors=False
+            )
+            for t in types
         )
+        if not is_goto:
+            types = ContextSet.from_set(types)
 
         if not types:
             path = import_path + [from_import_name]

jedi/evaluate/iterable.py

@@ -726,17 +726,15 @@ def _check_array_additions(context, sequence):
 
     def find_additions(context, arglist, add_name):
         params = list(param.TreeArguments(context.evaluator, context, arglist).unpack())
-        result = ContextSet()
+        result = set()
         if add_name in ['insert']:
             params = params[1:]
         if add_name in ['append', 'add', 'insert']:
-            for key, lazy_context in params:
-                result.add(lazy_context)
+            for key, whatever in params:
+                result.add(whatever)
         elif add_name in ['extend', 'update']:
             for key, lazy_context in params:
-                result |= ContextSet.from_iterable(
-                    py__iter__(context.evaluator, lazy_context.infer())
-                )
+                result |= set(py__iter__(context.evaluator, lazy_context.infer()))
         return result
 
     temp_param_add, settings.dynamic_params_for_other_modules = \
@@ -745,7 +743,7 @@ def _check_array_additions(context, sequence):
     is_list = sequence.name.string_name == 'list'
     search_names = (['append', 'extend', 'insert'] if is_list else ['add', 'update'])
 
-    added_types = NO_CONTEXTS
+    added_types = set()
     for add_name in search_names:
         try:
             possible_names = module_context.tree_node.get_used_names()[add_name]

test/test_evaluate/test_compiled.py

@@ -95,4 +95,4 @@ def test_time_docstring():
 
 
 def test_dict_values():
-    assert Script('import sys/sys.modules["alshdb;lasdhf"]').goto_definitions()
+    assert Script('import sys\nsys.modules["alshdb;lasdhf"]').goto_definitions()