No module named ext.db

[GoogleCodeExporter]

[Note: this is for reporting issues on the JaikuEngine open source project.
if you are reporting an issue with the jaiku.com service, please send it to
support@jaiku.com]

What steps will reproduce the problem?
1. svn co jaikuengine-read-only
2. cp local-setting-example.py local-setting.py
3. python manage runserver
4. 
What is the expected output? What do you see instead?
no index page will be displayed on browser. but a lot of error info.

What version of the product are you using? On what operating system?
CentOS 5.2

Please provide any additional information below.

The server log is:

[root@newtest jaikuengine-read-only]# python manage.py runserver 
\WARNING:root:Could not read datastore data 
from /tmp/django_jaiku.datastore
WARNING:root:Could not read datastore data 
from /tmp/django_jaiku.datastore.history
INFO:root:Trying to load components in 
['tests.py', '__init__.py', 'models.py', '.svn', 'dummy_legal', '__init__.p
yc', 'models.pyc', 'dummy_analytics', 'dummy_sms_service', 'dummy_xmpp_serv
ice']...
INFO:root:Server: appengine.google.com
INFO:root:Checking for updates to the SDK.
INFO:root:The SDK is up to date.
WARNING:root:Could not read datastore data from /tmp/django_jaiku.datastore
WARNING:root:Could not read datastore data 
from /tmp/django_jaiku.datastore.history
INFO:root:Running application jaiku on port 8000: http://localhost:8000
WARNING:root:Blocking access to skipped file "/root/jaikuengine-read-
only/django/foo"
ERROR:root:Exception encountered handling request
Traceback (most recent call last):
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
2711, in _HandleRequest
    base_env_dict=env_dict)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 380, 
in Dispatch
    base_env_dict=base_env_dict)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1998, in Dispatch
    self._module_dict)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1916, in ExecuteCGI
    reset_modules = exec_script(handler_path, cgi_path, hook)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1812, in ExecuteOrImportScript
    exec module_code in script_module.__dict__
  File "/root/jaikuengine-read-only/main.py", line 30, in ?
    from appengine_django import InstallAppengineHelperForDjango
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 982, 
in decorate
    return func(self, *args, **kwargs)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1572, in load_module
    return self.FindAndLoadModule(submodule, fullname, search_path)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 982, 
in decorate
    return func(self, *args, **kwargs)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1480, in FindAndLoadModule
    description)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 982, 
in decorate
    return func(self, *args, **kwargs)
  File "/root/jaikuengine-read-
only/.google_appengine/google/appengine/tools/dev_appserver.py", line 
1430, in LoadModuleRestricted
    description)
  File "/root/jaikuengine-read-only/appengine_django/__init__.py", line 
130, in ?
    from django import VERSION
ImportError: No module named django
INFO:root:"GET / HTTP/1.1" 500 -

Original issue reported on code.google.com by liu...@gmail.com on 15 Mar 2009 at 6:03

[GoogleCodeExporter]

o, I'm sorry.
No module named ext.db Error will be under Windows XP.

Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.

D:\jaikuengine-read-only>c:\python25\python manage.py runserver
WARNING:root:Could not read datastore data from 
c:\docume~1\刘文龙\locals~1\temp
\django_jaiku.datastore
WARNING:root:Could not read datastore data from 
c:\docume~1\刘文龙\locals~1\temp
\django_jaiku.datastore.history
INFO:root:Trying to load components in ['.svn', 'dummy_analytics', 'dummy_legal'
, 'dummy_sms_service', 'dummy_xmpp_service', 'models.py', 'models.pyc', 'tests.p
y', '__init__.py', '__init__.pyc']...
INFO:root:Server: appengine.google.com
INFO:root:Checking for updates to the SDK.
INFO:root:The SDK is up to date.
WARNING:root:Could not read datastore data from 
c:\docume~1\刘文龙\locals~1\temp
\django_jaiku.datastore
WARNING:root:Could not read datastore data from 
c:\docume~1\刘文龙\locals~1\temp
\django_jaiku.datastore.history
INFO:root:Running application jaiku on port 8000: http://localhost:8000

ERROR:root:Exception encountered handling request
Traceback (most recent call last):
  File "c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py",
line 2711, in _HandleRequest
    base_env_dict=env_dict)
  File "c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py",
line 380, in Dispatch
    base_env_dict=base_env_dict)
  File "c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py",
line 1998, in Dispatch
    self._module_dict)
  File "c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py",
line 1916, in ExecuteCGI
    reset_modules = exec_script(handler_path, cgi_path, hook)
  File "c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py",
line 1812, in ExecuteOrImportScript
    exec module_code in script_module.__dict__
  File "D:\jaikuengine-read-only\main.py", line 33, in <module>
    InstallAppengineHelperForDjango()
  File "D:\jaikuengine-read-only\appengine_django\__init__.py", line 468, in Ins
tallAppengineHelperForDjango
    InstallModelForm()
  File "D:\jaikuengine-read-only\appengine_django\__init__.py", line 517, in Ins
tallModelForm
    from google.appengine.ext.db import djangoforms as aeforms
ImportError: No module named ext.db
INFO:root:"GET / HTTP/1.1" 500 -

Errors on Broswer:

<type 'exceptions.ImportError'> Python 2.5.2: c:\python25\python.exe
Sun Mar 15 14:10:39 2009 

A problem occurred in a Python script. Here is the sequence of function calls 
leading up to the error, in the order they occurred.

 c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py in 
_HandleRequest(self=<google.appengine.tools.dev_appserver.DevAppServerRequestHan
dler 
instance at 0x0159E738>) 
 2709                               infile,

 2710                               outfile,

 2711                               base_env_dict=env_dict)

 2712         finally:

 2713           self.module_manager.UpdateModuleFileModificationTimes()

base_env_dict undefined, env_dict = 
{'APPLICATION_ID': 'jaiku', 'CURRENT_VERSION_ID': '1.1', 'REMOTE_ADDR': 
'127.0.0.1', 
'REQUEST_METHOD': 'GET', 'SERVER_NAME': 'localhost', 'SERVER_PORT': '8000', 
'SERVER_P
ROTOCOL': 'HTTP/1.0', 'SERVER_SOFTWARE': 'Development/1.0'} 
 c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py in Dispatch
(self=<google.appengine.tools.dev_appserver.MatcherDispatcher object at 
0x015A4D70>, 
relative_url='/', path=None, headers=<mimetools.Message instance at 
0x0159E9E0>, 
infile=<cStringIO.StringI object at 0x015933F8>, outfile=<cStringIO.StringO 
object 
at 0x015A4AE0>, base_env_dict=
{'APPLICATION_ID': 'jaiku', 'CURRENT_VERSION_ID': '1.1', 'REMOTE_ADDR': 
'127.0.0.1', 
'REQUEST_METHOD': 'GET', 'SERVER_NAME': 'localhost', 'SERVER_PORT': '8000', 
'SERVER_P
ROTOCOL': 'HTTP/1.0', 'SERVER_SOFTWARE': 'Development/1.0'}) 
  378                                       infile,

  379                                       outfile,

  380                                       base_env_dict=base_env_dict)

  381 

  382         if forward:

base_env_dict = 
{'APPLICATION_ID': 'jaiku', 'CURRENT_VERSION_ID': '1.1', 'REMOTE_ADDR': 
'127.0.0.1', 
'REQUEST_METHOD': 'GET', 'SERVER_NAME': 'localhost', 'SERVER_PORT': '8000', 
'SERVER_P
ROTOCOL': 'HTTP/1.0', 'SERVER_SOFTWARE': 'Development/1.0'} 
 c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py in Dispatch
(self=<google.appengine.tools.dev_appserver.CGIDispatcher object at 
0x015A40D0>, 
relative_url='/', path='main.py', headers=<mimetools.Message instance at 
0x0159E9E0>, infile=<cStringIO.StringI object at 0x015933F8>, 
outfile=<cStringIO.StringO object at 0x015A4AE0>, base_env_dict=
{'APPLICATION_ID': 'jaiku', 'CURRENT_VERSION_ID': '1.1', 'REMOTE_ADDR': 
'127.0.0.1', 
'REQUEST_METHOD': 'GET', 'SERVER_NAME': 'localhost', 'SERVER_PORT': '8000', 
'SERVER_P
ROTOCOL': 'HTTP/1.0', 'SERVER_SOFTWARE': 'Development/1.0'}) 
 1996                      infile,

 1997                      outfile,

 1998                      self._module_dict)

 1999       handler.AddDebuggingConsole(relative_url, env, outfile)

 2000     finally:

self = <google.appengine.tools.dev_appserver.CGIDispatcher object at 
0x015A40D0>, 
self._module_dict = {'__main__': <module 'main' from 'D:\jaikuengine-read-
only\main.py'>, '_struct': <module '_struct' (built-in)>, '_types': <module 
'_types' 
(built-in)>, 'appengine_django': <module 'appengine_django' from 
'D:\jaikuengine-
read-only\appengine_django\__init__.pyc'>, 'appengine_django.appengine_django': 
None, 'appengine_django.db': <module 'appengine' from 'D:\jaikuengine-read-
only\appengine_django\db\__init__.pyc'>, 'appengine_django.django': 
None, 'appengine_django.google': None, 'appengine_django.logging': 
None, 'appengine_django.os': None, ...} 
 c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py in ExecuteCGI
(root_path=ruD:\jaikuengine-read-onlyu, handler_path='main.py', 
cgi_path=ruD:\jaikuengine-read-only\main.pyu, env=
{'APPLICATION_ID': 'jaiku', 'AUTH_DOMAIN': 'gmail.com', 'CONTENT_LENGTH': '', 
'CONTEN
T_TYPE': 'application/x-www-form-
urlencoded', 'CURRENT_VERSION_ID': '1.1', 'GATEWAY_INTERFACE': 'CGI/1.1', 
'HTTP_ACCEP
T': 'image/gif, image/x-xbitmap, image/jpeg, 
image/pj...cation/vnd.ms-powerpoint, 
application/msword, */*', 'HTTP_ACCEPT_LANGUAGE': 'zh-cn', 'HTTP_CONNECTION': 
'Keep-
Alive', 'HTTP_HOST': 'localhost:8000', ...}, infile=<cStringIO.StringI object 
at 
0x015933F8>, outfile=<cStringIO.StringO object at 0x015A4AE0>, module_dict=
{'__main__': <module 'main' from 'D:\jaikuengine-read-only\main.py'>, 
'_struct': 
<module '_struct' (built-in)>, '_types': <module '_types' (built-in)
>, 'appengine_django': <module 'appengine_django' from 'D:\jaikuengine-read-
only\appengine_django\__init__.pyc'>, 'appengine_django.appengine_django': 
None, 'appengine_django.db': <module 'appengine' from 'D:\jaikuengine-read-
only\appengine_django\db\__init__.pyc'>, 'appengine_django.django': 
None, 'appengine_django.google': None, 'appengine_django.logging': 
None, 'appengine_django.os': None, ...}, exec_script=<function 
ExecuteOrImportScript 
at 0x010B7F70>) 
 1914     logging.debug('Executing CGI with env:\n%s', pprint.pformat(env))

 1915     try:

 1916       reset_modules = exec_script(handler_path, cgi_path, hook)

 1917     except SystemExit, e:

 1918       logging.debug('CGI exited with status: %s', e)

reset_modules = True, exec_script = <function ExecuteOrImportScript at 
0x010B7F70>, 
handler_path = 'main.py', cgi_path = ruD:\jaikuengine-read-only\main.pyu, hook 
= 
<google.appengine.tools.dev_appserver.HardenedModulesHook object at 0x015A48D0> 
 c:\python25\lib\site-packages\google\appengine\tools\dev_appserver.py in 
ExecuteOrImportScript(handler_path='main.py', cgi_path=ruD:\jaikuengine-read-
only\main.pyu, 
import_hook=<google.appengine.tools.dev_appserver.HardenedModulesHook 
object at 0x015A48D0>) 
 1810   try:

 1811     if module_code:

 1812       exec module_code in script_module.__dict__

 1813     else:

 1814       script_module.main()

module_code = <code object <module> at 01590338, file "D:\jaikuengine-read-
only\main.py", line 21>, script_module = <module 'main' from 
'D:\jaikuengine-read-
only\main.py'>, script_module.__dict__ = {'InstallAppengineHelperForDjango': 
<function InstallAppengineHelperForDjango at 0x0161DAB0>, '__builtins__': 
{'ArithmeticError': <type 'exceptions.ArithmeticError'>, 'AssertionError': 
<type 'exceptions.AssertionError'>, 'AttributeError': 
<type 'exceptions.AttributeError'>, 'BaseException': 
<type 'exceptions.BaseException'>, 'DeprecationWarning': 
<type 'exceptions.DeprecationWarning'>, 'EOFError': 
<type 'exceptions.EOFError'>, 'Ellipsis': Ellipsis, 'EnvironmentError': 
<type 'exceptions.EnvironmentError'>, 'Exception': 
<type 'exceptions.Exception'>, 'False': False, ...}, '__doc__': 'Bootstrap for 
running a Django app under Google ...ly -- everything else is controlled from 
there.\n\n', '__file__': r'D:\jaikuengine-read-only\main.py', '__loader__': 
<google.appengine.tools.dev_appserver.HardenedModulesHook object at 
0x015A48D0>, '__name__': 'main', 'django_zip_path': r'D:\jaikuengine-read-
only\django.zip', 'have_django_zip': False, 'logging': <module 'logging' 
from 'c:\python25\lib\logging\__init__.pyc'>, 'os': <module 'os' from 
'c:\python25
\lib\os.pyc'>, ...} 
 D:\jaikuengine-read-only\main.py in () 
   31 from appengine_django import have_django_zip

   32 from appengine_django import django_zip_path

   33 InstallAppengineHelperForDjango()

   34 

   35 # Load extra components

InstallAppengineHelperForDjango = <function InstallAppengineHelperForDjango at 
0x0161DAB0> 
 D:\jaikuengine-read-only\appengine_django\__init__.py in 
InstallAppengineHelperForDjango() 
  466   InstallReplacementImpModule()

  467   InstallAppengineDatabaseBackend()

  468   InstallModelForm()

  469   InstallGoogleMemcache()

  470   InstallDjangoModuleReplacements()

global InstallModelForm = <function InstallModelForm at 0x0161DB70> 
 D:\jaikuengine-read-only\appengine_django\__init__.py in InstallModelForm() 
  515   """Replace Django ModelForm with the AppEngine ModelForm."""

  516   # This MUST happen as early as possible, but after any auth model patching.

  517   from google.appengine.ext.db import djangoforms as aeforms

  518   try:

  519     # pre 1.0

google undefined, djangoforms undefined, aeforms undefined 

<type 'exceptions.ImportError'>: No module named ext.db 
      args = ('No module named ext.db',) 
      message = 'No module named ext.db' 

Original comment by liu...@gmail.com on 15 Mar 2009 at 6:12

[GoogleCodeExporter]

Issue 42 has been merged into this issue.

Original comment by adewale on 15 Mar 2009 at 3:55

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

After modified file below，it get to work now.
But still can't load fixtures on my WinXP machine:-(
So I can't login:-(

Comment 1  by mika.raento, Mar 14 (47 hours ago)

There's an incompatibility with the current appengine SDK that is getting fixed.
Meanwhile, comment out the 
lines

      if FakeFile._skip_files.match(relative_filename):
        logging.warning('Blocking access to skipped file "%s"',
                        logical_filename)
        return False

in google/appengine/tools/dev_appserver.py.

Original comment by LinCong....@gmail.com on 16 Mar 2009 at 9:22

[GoogleCodeExporter]

Added a monkey patch to resolve this issue in r23, the patch described above is 
no longer necessary

Original comment by andyster on 24 Mar 2009 at 9:06

• Changed state: Fixed