我在app引擎中的目录结构是这样的：
project
app.yaml
main.py
lib
markdown
markdown_files
main.py正在from lib.markdown import markdown 导入Markdown。此时，dev服务器开始给我以下堆栈跟踪。我想知道这里出了什么问题！我在lib中有一个 init .py。
Traceback (most recent call last):
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2769, in _HandleRequest
self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2654, in _Dispatch
base_env_dict=env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 683, in Dispatch
base_env_dict=base_env_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1718, in Dispatch
self._module_dict)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1622, in ExecuteCGI
reset_modules = exec_script(config, handler_path, cgi_path, hook)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1310, in ExecuteOrImportScript
exec module_code in script_module.__dict__
File "/Users/nomadali/jeeqs/git/src/jeeqs.py", line 26, in <module>
from lib.markdown import markdown
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1845, in load_module
return self.FindAndLoadModule(submodule, fullname, search_path)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1717, in FindAndLoadModule
description)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1660, in LoadModuleRestricted
description)
File "/Users/nomadali/jeeqs/git/src/lib/markdown/__init__.py", line 161, in <module>
import preprocessors
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1845, in load_module
return self.FindAndLoadModule(submodule, fullname, search_path)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1717, in FindAndLoadModule
description)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 676, in Decorate
return func(self, *args, **kwargs)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_import_hook.py", line 1660, in LoadModuleRestricted
description)
File "/Users/nomadali/jeeqs/git/src/markdown/preprocessors.py", line 11, in <module>
ImportError: No module named markdown
INFO 2012-02-20 19:53:02,506 dev_appserver.py:2884] "GET /favicon.ico HTTP/1.0" 500 -
UPDATE1
我认为这个问题是Import Python module with PyImport_ImportModuleEx for a gedit plugin
的欺骗答案：
如果你想使用markdown而不修改它，那么你将不得不把它放在Python库所期望的地方，比如在site-packages /中。否则，您将不得不修改它以使用相对导入而不是绝对导入。
更新2 我通过在app engine中修改我的sys.path解决了这个问题：
sys.path.append（os.path.join（os.path.dirname（ file ），'lib'））
感谢Murat的帮助，
答案 0 :(得分：0)
我相信这个问题是使用PyImport_ImportModuleEx导入Python模块以获取gedit插件
答案：
如果你想使用markdown而不修改它，那么你将不得不把它放在Python库所期望的地方，比如在site-packages /中。否则，您将不得不修改它以使用相对导入而不是绝对导入。
更新2我通过修改app engine中的sys.path解决了这个问题：
sys.path.append（os.path.join（os.path.dirname（file），'lib'））
感谢Murat的帮助，
答案 1 :(得分：0)
该文件需要调用__init__.py才能生效。
将lib目录添加到pythonpath也可以。
如果你想使用markdown而不修改它，那么你将不得不把它放在Python库所期望的地方，比如在site-packages /
中
这是不正确的，app引擎有自己的导入机制，只允许通过此方法导入明确列出白名单的包。
答案 2 :(得分：-1)
你想要的是你的PYTHONPATH，这是Python看起来你尝试导入的东西的路径。正如您所发现的，一种方法是将lib添加到sys.path。
创建 init .py文件不是您想要的，因为这使lib成为包含markdown的包。那时，你应该可以做到
from lib import markdown
虽然这不是推荐的方法。