diff --git a/jedi/api/classes.py b/jedi/api/classes.py
index c8740373..6440c24b 100644
--- a/jedi/api/classes.py
+++ b/jedi/api/classes.py
@@ -397,7 +397,7 @@ class Completion(BaseDefinition):
     def _complete(self, like_name):
         append = ''
         if settings.add_bracket_after_function \
-                and self.type == 'Function':
+                and self.type == 'function':
             append = '('
 
         if self._name.api_type == 'param' and self._stack is not None:
diff --git a/jedi/api/environment.py b/jedi/api/environment.py
index 1d012157..c4125d8b 100644
--- a/jedi/api/environment.py
+++ b/jedi/api/environment.py
@@ -334,7 +334,10 @@ def get_system_environment(version):
 
     if os.name == 'nt':
         for exe in _get_executables_from_windows_registry(version):
-            return Environment(exe)
+            try:
+                return Environment(exe)
+            except InvalidPythonEnvironment:
+                pass
     raise InvalidPythonEnvironment("Cannot find executable python%s." % version)
 
 
diff --git a/jedi/evaluate/helpers.py b/jedi/evaluate/helpers.py
index 3f8da358..2f940149 100644
--- a/jedi/evaluate/helpers.py
+++ b/jedi/evaluate/helpers.py
@@ -190,6 +190,9 @@ def get_module_names(module, all_scopes):
                 # but that would be a big change that could break type inference, whereas for now
                 # this discrepancy looks like only a problem for "get_module_names".
                 parent_scope = parent_scope.parent
+            # async functions have an extra wrapper. Strip it.
+            if parent_scope and parent_scope.type == 'async_stmt':
+                parent_scope = parent_scope.parent
             return parent_scope in (module, None)
 
         names = [n for n in names if is_module_scope_name(n)]
diff --git a/test/test_api/test_defined_names.py b/test/test_api/test_defined_names.py
index 31814e0f..b70807fe 100644
--- a/test/test_api/test_defined_names.py
+++ b/test/test_api/test_defined_names.py
@@ -95,6 +95,43 @@ class TestDefinedNames(TestCase):
         self.assert_definition_names(C_subdefs, ['h'])
         self.assert_definition_names(foo_subdefs, ['x', 'bar'])
 
+    def test_async_stmt_with_all_scopes_false(self):
+        definitions = self.check_defined_names("""
+        from module import f
+        import asyncio
+
+        g = f(f)
+        class C:
+            h = g
+            def __init__(self):
+                pass
+
+            async def __aenter__(self):
+                pass
+
+        def foo(x=a):
+           bar = x
+           return bar
+
+        async def async_foo(duration):
+            async def wait():
+                await asyncio.sleep(100)
+            for i in range(duration//100):
+                await wait()
+            return duration//100*100
+
+        async with C() as cinst:
+            d = cinst
+        """, ['f', 'asyncio', 'g', 'C', 'foo', 'async_foo', 'cinst', 'd'])
+        C_subdefs = definitions[3].defined_names()
+        foo_subdefs = definitions[4].defined_names()
+        async_foo_subdefs = definitions[5].defined_names()
+        cinst_subdefs = definitions[6].defined_names()
+        self.assert_definition_names(C_subdefs, ['h', '__init__', '__aenter__'])
+        self.assert_definition_names(foo_subdefs, ['x', 'bar'])
+        self.assert_definition_names(async_foo_subdefs, ['duration', 'wait', 'i'])
+        # We treat d as a name outside `async with` block
+        self.assert_definition_names(cinst_subdefs, [])
 
 def test_follow_imports(environment):
     # github issue #344
diff --git a/test/test_api/test_settings.py b/test/test_api/test_settings.py
index 522bf82d..24ae05fe 100644
--- a/test/test_api/test_settings.py
+++ b/test/test_api/test_settings.py
@@ -21,3 +21,14 @@ def test_add_dynamic_mods(Script):
     result = script.goto_definitions()
     assert len(result) == 1
     assert result[0].description == 'class int'
+
+
+def test_add_bracket_after_function(monkeypatch, Script):
+    settings = api.settings
+    monkeypatch.setattr(settings, 'add_bracket_after_function', True)
+    script = Script('''\
+def foo():
+    pass
+foo''')
+    completions = script.completions()
+    assert completions[0].complete == '('