Fix some collections.deque issues

jedi/api/classes.py

@@ -49,6 +49,7 @@ class BaseDefinition(object):
         'posix': 'os',
         '_io': 'io',
         '_functools': 'functools',
+        '_collections': 'collections',
         '_sqlite3': 'sqlite3',
         '__builtin__': 'builtins',
     }

jedi/evaluate/gradual/conversion.py

@@ -113,7 +113,6 @@ def _python_to_stub_names(names, fallback_to_python=False):
                 if fallback_to_python or new_name.is_stub():
                     yield new_name
             continue
-            print(name.goto())
 
         name_list = name.get_qualified_names()
         stubs = NO_CONTEXTS

jedi/evaluate/gradual/typeshed.py

@@ -227,6 +227,8 @@ def _load_from_typeshed(evaluator, python_context_set, parent_module_context, im
     map_ = None
     if len(import_names) == 1:
         map_ = _cache_stub_file_map(evaluator.grammar.version_info)
+        if import_name == '_collections':
+            import_name = 'collections'
     elif isinstance(parent_module_context, StubModuleContext):
         if not parent_module_context.is_package:
             # Only if it's a package (= a folder) something can be

test/test_evaluate/test_gradual/test_stubs.py

@@ -24,8 +24,7 @@ from test.helpers import root_dir
         ['from collections import Counter; Counter()', 'collections.Counter', True, True, {}],
         ['from collections import Counter; Counter.most_common',
          'collections.Counter.most_common', True, True, {}],
-        #['from collections import deque',
-         #('_collections.deque', 'collections.deque'), True, False, {}],
+        ['from collections import deque', 'collections.deque', True, False, {}],
 
         ['from keyword import kwlist; kwlist', 'typing.Sequence', True, True,
          {'full_name': 'keyword.kwlist'}],
@@ -43,10 +42,6 @@ def test_infer_and_goto(Script, code, full_name, has_stub, has_python, way,
     s = Script(code, _project=project)
     prefer_stubs = kwargs['prefer_stubs']
     only_stubs = kwargs['only_stubs']
-    if isinstance(full_name, tuple):
-        # Small hack to make it possible to test some special cases.
-        should_land_on_stub = has_stub and (only_stubs or prefer_stubs)
-        full_name = full_name[should_land_on_stub]
 
     if type_ == 'goto':
         full_name = goto_changes.get('full_name', full_name)