diff --git a/jedi/api/__init__.py b/jedi/api/__init__.py
index 1d0eb873..a2f4b89e 100644
--- a/jedi/api/__init__.py
+++ b/jedi/api/__init__.py
@@ -563,11 +563,10 @@ class Script(object):
         match = re.match(r'^(.*?)(\.|)(\w?[\w\d]*)$', path, flags=re.S)
         return match.groups()
 
-    @staticmethod
-    def _sorted_defs(d):
+    def _sorted_defs(self, d):
         # Note: `or ''` below is required because `module_path` could be
         #       None and you can't compare None and str in Python 3.
-        return sorted(d, key=lambda x: (x.module_path or '', x.line, x.column))
+        return sorted(d, key=lambda x: (x.module_path or '', x.line or 0, x.column or 0))
 
 
 class Interpreter(Script):
diff --git a/jedi/api/classes.py b/jedi/api/classes.py
index 875baba7..c3f5d0b1 100644
--- a/jedi/api/classes.py
+++ b/jedi/api/classes.py
@@ -173,11 +173,11 @@ class BaseDefinition(object):
         The module name.
 
         >>> from jedi import Script
-        >>> source = 'import datetime'
-        >>> script = Script(source, 1, len(source), 'example.py')
+        >>> source = 'import json'
+        >>> script = Script(source, path='example.py')
         >>> d = script.goto_definitions()[0]
         >>> print(d.module_name)                       # doctest: +ELLIPSIS
-        datetime
+        json
         """
         return str(self._module.name)
 
diff --git a/jedi/evaluate/compiled/__init__.py b/jedi/evaluate/compiled/__init__.py
index e13fab91..cddf675f 100644
--- a/jedi/evaluate/compiled/__init__.py
+++ b/jedi/evaluate/compiled/__init__.py
@@ -154,6 +154,9 @@ def load_module(path, name):
         name = os.path.basename(path)
         name = name.rpartition('.')[0]  # cut file type (normally .so)
 
+    # sometimes there are endings like `_sqlite3.cpython-32mu`
+    name = re.sub(r'\..*', '', name)
+
     sys_path = get_sys_path()
     if path:
         sys_path.insert(0, path)
diff --git a/jedi/evaluate/compiled/fake.py b/jedi/evaluate/compiled/fake.py
index 65367b10..73734e5c 100644
--- a/jedi/evaluate/compiled/fake.py
+++ b/jedi/evaluate/compiled/fake.py
@@ -45,9 +45,6 @@ def _load_fakes(module_name):
                 raise NotImplementedError()
         return funcs
 
-    # sometimes there are stupid endings like `_sqlite3.cpython-32mu`
-    module_name = re.sub(r'\..*', '', module_name)
-
     if module_name == '__builtin__' and not is_py3k:
         module_name = 'builtins'
     path = os.path.dirname(os.path.abspath(__file__))
diff --git a/test/test_api.py b/test/test_api.py
index 74c81a9e..44f94c7b 100644
--- a/test/test_api.py
+++ b/test/test_api.py
@@ -2,24 +2,23 @@
 Test all things related to the ``jedi.api`` module.
 """
 
-from jedi import common, api
+from jedi import api
 from pytest import raises
 
 
 def test_preload_modules():
     def check_loaded(*modules):
         # +1 for None module (currently used)
-        assert len(new) == len(modules) + 1
-        for i in modules + ('__builtin__',):
-            assert [i in k for k in new.keys() if k is not None]
+        assert len(parser_cache) == len(modules) + 1
+        for i in modules:
+            assert [i in k for k in parser_cache.keys() if k is not None]
 
     from jedi import cache
     temp_cache, cache.parser_cache = cache.parser_cache, {}
-    new = cache.parser_cache
-    with common.ignored(KeyError): # performance of tests -> no reload
-        new['__builtin__'] = temp_cache['__builtin__']
+    parser_cache = cache.parser_cache
 
-    api.preload_module('datetime')
+    api.preload_module('sys')
+    check_loaded()  # compiled (c_builtin) modules shouldn't be in the cache.
     api.preload_module('json', 'token')
     check_loaded('json', 'token')
 
@@ -29,6 +28,7 @@ def test_preload_modules():
 def test_empty_script():
     assert api.Script('')
 
+
 def test_line_number_errors():
     """
     Script should raise a ValueError if line/column numbers are not in a