更新:这是我在全新安装的 OS X 10.8.3 上使用 1.8.0 App Engine SDK 时遇到的问题。
首先 - 关于 SO 有很多标题相似的问题。我已经检查过了,但我不相信他们会回答我的问题。大多数情况下,他们建议获取 libsqlite3-dev 并重建 python 以获取 _sqlite3.so,但这已经是它应该的位置了:
$ 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
The actual code that that causes app engine SDK to try to load that module is:
remaining = TaskSetElement.all().filter('taskSet', ts_key).filter('complete', False).count()
这是 SDK 堆栈跟踪:
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
我在这行之前有一堆数据存储代码可以正常执行。我直接从命令行或在 eclipse 中使用 pydev 运行 dev_appserver.py 时遇到同样的问题。
在命令行中,一切看起来都不错:
$ 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'] >>>
此代码片段(在 App Engine SDK 中运行)从等式中删除了 App Engine 数据存储区代码:
...
logging.info("Python Version: %s" % sys.version)
logging.info(filter(lambda p: 'lib-dynload' in p, sys.path))
import sqlite3
...
它输出这个:
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
知道问题出在哪里吗?谢谢,
科林
最佳答案
它看起来像是将 '_sqlite3'
添加到 sandbox.py 中第 742 行的 _WHITE_LIST_C_MODULES
列表(位于 /Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/devappserver2/python
在我的机器上)目前对我有用。
在我未受过教育的眼中,CModuleImportHook
似乎错误地阻止了 _sqlite3 的导入,并且修改它必须返回 None
的任何一项检查会消除错误。有更多知识的人 - 请扩展我所说的内容或纠正我!
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对 dbapi2.py 的导入?
关于python - OS X AppEngine - 导入错误 : No module named _sqlite3,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16757013/