reduced support for None paths in path search, because the path should be set normally. -> fixes #75

jedi/modules.py

@@ -275,6 +275,9 @@ def sys_path_with_modifications(module):
                     debug.dbg('sys path added: %s' % res)
         return sys_path
 
+    if module.path is None:
+        return []  # support for modules without a path is intentionally bad.
+
     curdir = os.path.abspath(os.curdir)
     try:
         os.chdir(os.path.dirname(module.path))

test/regression.py

@@ -271,11 +271,15 @@ class TestRegression(Base):
         assert [d.doc for d in defs]
 
     def test_goto_following_on_imports(self):
+        if not is_py25:
             g = self.goto("import multiprocessing.dummy; multiprocessing.dummy")
             assert len(g) == 1
-        if not is_py25:
             assert g[0].start_pos != (0, 0)
 
+        script = api.Script("import json", 1, len("import js"), None)
+        completions = script.complete()
+        completions
+
 
 class TestFeature(Base):
     def test_full_name(self):