2013-05-26 49 views
4

更新:这是我在1.8.0 App Engine SDK上全新安装的OS X 10.8.3上遇到的问题。OS X AppEngine - ImportError:没有名为_sqlite3的模块

首先 - 有一堆关于SO的问题与相似的标题。我检查了他们,我不相信他们回答我的问题。他们大多建议得到libsqlite3-dev的和重建蟒蛇得到_sqlite3.so,但是这已经在那里应该是:

 
$ find/-name _sqlite3.so 
Password: 
... 
/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/lib-dynload/_sqlite3.so 
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload/_sqlite3.so 
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_sqlite3.so 

实际的代码,导致应用程序引擎SDK,以尝试加载模块:


remaining = TaskSetElement.all().filter('taskSet', ts_key).filter('complete', False).count() 

这里的SDK堆栈跟踪:此行对正在执行罚款

 

    File "~/dev/myApp/myApp/task.py", line 90, in completeTaskSetElement 
    remaining = TaskSetElement.all().filter('taskSet', ts_key).filter('complete', False).count() 
    File "~/dev/GAE/google_appengine/google/appengine/ext/db/__init__.py", line 2133, in count 
    result = raw_query.Count(limit=limit, **kwargs) 
    File "~/dev/GAE/google_appengine/google/appengine/api/datastore.py", line 1698, in Count 
    batch = self.GetBatcher(config=config).next() 
    File "~/dev/GAE/google_appengine/google/appengine/datastore/datastore_query.py", line 2754, in next 
    return self.next_batch(self.AT_LEAST_ONE) 
    File "~/dev/GAE/google_appengine/google/appengine/datastore/datastore_query.py", line 2791, in next_batch 
    batch = self.__next_batch.get_result() 
    File "~/dev/GAE/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 604, in get_result 
    return self.__get_result_hook(self) 
    File "/Users/colin/dev/GAE/google_appengine/google/appengine/datastore/datastore_query.py", line 2528, in __query_result_hook 
    self._batch_shared.conn.check_rpc_success(rpc) 
    File "~/dev/GAE/google_appengine/google/appengine/datastore/datastore_rpc.py", line 1222, in check_rpc_success 
    rpc.check_success() 
    File "~/dev/GAE/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 570, in check_success 
    self.__rpc.CheckSuccess() 
    File "/Users/colin/dev/GAE/google_appengine/google/appengine/api/apiproxy_rpc.py", line 156, in _WaitImpl 
    self.request, self.response) 
    File "~/dev/GAE/google_appengine/google/appengine/ext/remote_api/remote_api_stub.py", line 200, in MakeSyncCall 
    self._MakeRealSyncCall(service, call, request, response) 
    File "~/dev/GAE/google_appengine/google/appengine/ext/remote_api/remote_api_stub.py", line 234, in _MakeRealSyncCall 
    raise pickle.loads(response_pb.exception()) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 1382, in loads 
    return Unpickler(file).load() 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 858, in load 
    dispatch[key](self) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 1090, in load_global 
    klass = self.find_class(module, name) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 1124, in find_class 
    __import__(module) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sqlite3/__init__.py", line 24, in 
    from dbapi2 import * 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sqlite3/dbapi2.py", line 27, in 
    from _sqlite3 import * 
    File "~/dev/GAE/google_appengine/google/appengine/tools/devappserver2/python/sandbox.py", line 856, in load_module 
    raise ImportError('No module named %s' % fullname) 
ImportError: No module named _sqlite3 

我有一大堆的数据存储代码之前。我直接从命令行运行dev_appserver.py或在pydev运行eclipse时遇到了同样的问题。

在命令行中,一切看起来不错:

 
$ python 
Python 2.7.2 (default, Oct 11 2012, 20:14:37) 
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import sqlite3 
>>> import _sqlite3 
>>> import sys 
>>> print(sys.path) 
['', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', '/Library/Python/2.7/site-packages'] 
>>> 

这段代码(在应用程序引擎SDK运行),将删除方程式App Engine数据存储代码:


... 
logging.info("Python Version: %s" % sys.version) 
logging.info(filter(lambda p: 'lib-dynload' in p, sys.path)) 

import sqlite3 
... 
 

它输出这:

 
INFO  2013-05-26 05:55:12,055 main.py:38] Python Version: 2.7.2 (default, Oct 11 2012, 20:14:37) 
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] 
INFO  2013-05-26 05:55:12,055 main.py:40] ['/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload'] 
ERROR 2013-05-26 05:55:12,058 cgi.py:121] Traceback (most recent call last): 
    File "main.py", line 42, in 
    import sqlite3 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sqlite3/__init__.py", line 24, in 
    from dbapi2 import * 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/sqlite3/dbapi2.py", line 27, in 
    from _sqlite3 import * 
    File "~/dev/GAE/google_appengine/google/appengine/tools/devappserver2/python/sandbox.py", line 856, in load_module 
    raise ImportError('No module named %s' % fullname) 
ImportError: No module named _sqlite3 

任何想法是什么问题?谢谢,

科林

回答

8

它看起来像在sandbox.py线742(其在/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/python我的机器上住)加入'_sqlite3'_WHITE_LIST_C_MODULES列表很适合我现在。

对我没有受过教育的眼睛来说,它看起来像CModuleImportHook不正确地阻止_sqlite3的导入,并且修改它必须返回的任何一项检查None可以清除错误。有更多的人 - 请扩展我所说的话或纠正我!

该更改可能允许您在自己的代码中导入_sqlite3,这将是一个错误。也许它需要一种方法来限制导入到dbapi2.py?

+0

完美!我正在运行通过eclipse实际运行linux GAE SDK发行版,但该解决方案在那里也很好 - 谢谢你的帮助,非常感谢。 – hawkett

+0

很高兴帮助。这个问题一直在困扰我很多年! – personalnadir

1

从你的堆栈跟踪它表明你正试图在你的main.py.导入源码

你为什么这样做?

在appengine中不支持导入sqlite。 sqlite是用二进制库实现的,你不能只导入任何旧的二进制文件。另外文件系统是只读的,你不能写入sqlite数据库。

+1

据我了解,本地开发服务器中的数据存储是使用SQLite实现的,因此导入发生在App Engine代码中,而不是他自己的(请参阅问题中的最后一个代码片段)。 – omz

+0

正确 - 应用程序引擎在sdk中导入sqlite以支持开发数据存储 - 这是我在开发环境中遇到的问题。在我自己的代码中导入只是为了演示问题(它不是用于生产部署),打印python版本并显示路径包含它在我的运行时环境中应该包含的内容。我的测试代码是在第一次查看应用程序引擎代码之后构建的,即我正在导入相同的东西来生成相同的错误。 – hawkett

+0

我已经修改了这个问题,首先把SDK问题,包括应用程序引擎的堆栈跟踪,以及我的演示代码。我发现此问题可能与以下问题有关:https://code.google.com/p/googleappengine/issues/detail?id=9008 - 针对同一问题在3月26日和4月27日发表的评论。 – hawkett

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