在Google Appengine SDK中使用PIL时出现问题

我有一台WindowsServer2008 R2(64位)机器,我想在上面开发一个谷歌Appengine应用程序。

所以我从python.org安装了python 2.5.4(因为google sdk说我需要2.5和2.5.6没有任何msi) 然后我安装了PIL http://www.pythonware.com/products/pil/ 我使用了1.1.7版的python 2.5 我使用了这两个的32位版本。

然后我安装了Appengine SDK。

Hello World工作得很好,但我想操作一个图像,但这不起作用,因为我得到了stacktrace和HTTP 500响应:

2010-02-18 11:50:27 Running command: "['C:\\Python25\\pythonw.exe', 'C:\\Program Files 

(x86)\\Google\\google_appengine\\dev_appserver.py', '--admin_console_server=', '--port=8080', 'd:\\imgsvc']"
WARNING  2010-02-18 10:50:29,260 datastore_file_stub.py:623] Could not read datastore data from c:\users\admini~1\appdata\local\temp\dev_appserver.datastore
INFO     2010-02-18 10:50:29,627 dev_appserver_main.py:399] Running application imgsvc on port 8080: http://localhost:8080
ERROR    2010-02-18 10:50:40,058 dev_appserver.py:3217] Exception encountered handling request
Traceback (most recent call last):
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3180, in _HandleRequest
    self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3123, in _Dispatch
    base_env_dict=env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 515, in Dispatch
    base_env_dict=base_env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2382, in Dispatch
    self._module_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2292, in ExecuteCGI
    reset_modules = exec_script(handler_path, cgi_path, hook)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2188, in ExecuteOrImportScript
    exec module_code in script_module.__dict__
  File "d:\imgsvc\imgsvc.py", line 7, in <module>
    outputimage = images.resize(inputimage.content, 32, 32)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 625, in resize
    return image.execute_transforms(output_encoding=output_encoding)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 513, in execute_transforms
    response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 78, in MakeSyncCall
    return apiproxy.MakeSyncCall(service, call, request, response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 278, in MakeSyncCall
    rpc.CheckSuccess()
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_rpc.py", line 149, in _WaitImpl
    self.request, self.response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub.py", line 80, in MakeSyncCall
    method(request, response)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\images_stub.py", line 171, in _Dynamic_Transform
    response_value = self._EncodeImage(new_image, request.output())
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\images_stub.py", line 193, in _EncodeImage
    image.save(image_string, image_encoding)
  File "C:\Python25\lib\site-packages\PIL\Image.py", line 1439, in save
    save_handler(self, fp, filename)
  File "C:\Python25\lib\site-packages\PIL\PngImagePlugin.py", line 564, in _save
    import ICCProfile
SystemError: Parent module 'PIL' not loaded
INFO     2010-02-18 10:50:40,081 dev_appserver.py:3246] "GET / HTTP/1.1" 500 -

我尝试运行的python脚本:

from google.appengine.api import urlfetch
from google.appengine.api import images

url = "http://www.brokenwire.net/bw/images/113.png"
inputimage = urlfetch.fetch(url)
if inputimage.status_code == 200:
    outputimage = images.resize(inputimage.content, 32, 32)
    self.response.headers['Content-Type'] = "image/png"
        self.response.out.write(outputimage)

有人知道这里出什么事了吗?

我还尝试了这个独立的python脚本,它可以很好地工作:

import Image
im = Image.open('filename.png')
im2 = im.resize((100,100), Image.ANTIALIAS)
im2.show()

我使用哪种图像似乎有所不同:

url = "http://www.r-stone.net/blogs/ishikawa/uploaded_images/google_appengine-779483.png"

给出问题的堆栈跟踪,但是

url = "http://www.brokenwire.net/bw/images/113.png"

毫无问题地工作。