如果使用blobstore blob,Google App Engine文件API现在支持编程创建。
我试图通过http获取图像并将其存储到blobstore来尝试这个:
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)
此代码抛出错误:
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__'
我怀疑它正在破裂,因为我超出了尺寸限制。这是由于我将图像写入blobstore的方式吗? Blobstores的大小限制为2 GB,我测试的图像小于200-300 KB。
答案 0 :(得分:5)
urllib2.urlopen
返回urllib2.addinourl
个对象,而不是字符串。您无法将此对象直接写入文件对象。
在第142行尝试f.write(image.read())
。
答案 1 :(得分:0)
由于文件API已于2015年9月停用,因此无法使用。