imports without path did have problems, because of an incorrect sys.path

jedi/modules.py

@@ -335,7 +335,9 @@ def sys_path_with_modifications(module):
         return sys_path
 
     if module.path is None:
-        return []  # support for modules without a path is intentionally bad.
+        # Support for modules without a path is bad, therefore return the
+        # normal path.
+        return list(get_sys_path())
 
     curdir = os.path.abspath(os.curdir)
     with common.ignored(OSError):

test/test_integration_import.py

@@ -28,6 +28,20 @@ def test_complete_on_empty_import():
     assert Script("from datetime import ").completions()
 
 
+def test_imports_on_global_namespace_without_path():
+    """If the path is None, there shouldn't be any import problem"""
+    completions = Script("import operator").completions()
+    assert [c.name for c in completions] == ['operator']
+    completions = Script("import operator", source_path= 'example.py').completions()
+    assert [c.name for c in completions] == ['operator']
+
+    # the first one has a path the second doesn't
+    completions = Script("import keyword", source_path='example.py').completions()
+    assert [c.name for c in completions] == ['keyword']
+    completions = Script("import keyword").completions()
+    assert [c.name for c in completions] == ['keyword']
+
+
 def test_named_import():
     """named import - jedi-vim issue #8"""
     s = "import time as dt"

test/test_utils.py

@@ -49,6 +49,7 @@ class TestSetupReadline():
     def test_import(self):
         s = 'from os.path import a'
         assert set(self.completions(s)) == set([s + 'ltsep', s + 'bspath'])
+        assert self.completions('import keyword') == ['import keyword']
 
     def test_colorama(self):
         """