Google App Engine Files API 现在支持以编程方式创建 blobstore blob。
我正在尝试通过 http 获取图像并将其存储到 blobstore 来尝试这一点:
file_name = files.blobstore.create(mime_type='image/jpeg')
image = urllib2.urlopen(url)
with files.open(file_name, 'a') as f:
f.write(image) # LINE 142
files.finalize(file_name)
blob_key = files.blobstore.get_blob_key(file_name)
此代码引发错误:
File "/Users/willmerydith/repos/spam/admin.py", line 142, in post
f.write(image)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/files/file.py", line 364, in write
self._make_rpc_call_with_retry('Append', request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/files/file.py", line 472, in _make_rpc_call_with_retry
_make_call(method, request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/files/file.py", line 229, in _make_call
rpc.check_success()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub_map.py", line 558, in check_success
self.__rpc.CheckSuccess()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_rpc.py", line 156, in _WaitImpl
self.request, self.response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/apiproxy_stub.py", line 80, in MakeSyncCall
if request.ByteSize() > self.__max_request_size:
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/api/files/file_service_pb.py", line 1923, in ByteSize
n += self.lengthString(len(self.data_))
AttributeError: addinfourl instance has no attribute '__len__'
我怀疑它坏了,因为我超出了尺寸限制。这是因为我将图像写入 blobstore 的方式吗?Blobstore 的大小限制为 2 GB,我正在测试的图像小于 200-300 KB。