I'm in the process of switching an application over from Python 2.5 to 2.7 and have begun encountering a problem with the images service. For example, saving this entity using db.put():
from google.appengine.api import images
class Images(db.Expando):
ImageTitle = db.StringProperty()
ImageFile = blobstore.BlobReferenceProperty()
ImageReference = db.StringProperty()
def put(self, **kwargs):
if not self.ImageReference:
self.ImageReference = images.get_serving_url(self.ImageFile.key())
super(Images, self).put(**kwargs)
Now yields this error:
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 1536, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 1530, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "C:\Users\VB User\Bruha\src\handler_product_page_image.py", line 40, in post
image.put()
File "C:\Users\VB User\Bruha\src\db_models.py", line 56, in put
self.ImageReference = images.get_serving_url(self.ImageFile.key())
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 1792, in get_serving_url
rpc = get_serving_url_async(blob_key, size, crop, secure_url, filename, rpc)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 1907, in get_serving_url_async
None)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 1034, in _make_async_call
rpc = create_rpc()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 1028, in create_rpc
return apiproxy_stub_map.UserRPC("images", deadline, callback)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 405, in __init__
self.__rpc = CreateRPC(service, stubmap)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 69, in CreateRPC
'a CreateRPC method.') % service)
AssertionError: The service "images" doesn't have a CreateRPC method.
Calling the 'execute_transforms' method also yields the same error.
Any help understanding what is going on would be much appreciated.
You are running the dev server, so when you start up check for this message `'Could not initialize images API; you are likely missing '
'the Python "PIL" module. ImportError: %s', e
If you are getting this message then the images service RPC is not being registered (the RegisterStub call in dev_appserver will be failing) and you will get the error you are seeing, because the assertion fails in CreateRPC call.
So check to see if PIL is correctly installed for Python 2.7
Related
I'm trying to run an application for AppEngine with python where I'm import the example module to get data from Google Analytics https://developers.google.com/analytics/devguides/reporting/core/v3/quickstart/service-py but when I run the server with dev_appserver.py and go to localhost:8080/ I recive an 505 error with his error in the console:
Traceback (most recent call last):
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 1511, in __call__
rv = self.handle_exception(request, response, e)
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 1505, in __call__
rv = self.router.dispatch(request, response)
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
return route.handler_adapter(request, response)
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 1077, in __call__
return handler.dispatch()
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 547, in dispatch
return self.handle_exception(e, self.app.debug)
File "/home/ingdavid/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.3/webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "/var/www/repositorios/PYTHON/dashboard/app.py", line 248, in get
print analyticsH.main()
File "/var/www/repositorios/PYTHON/dashboard/analyticsH.py", line 111, in main
service_account_email)
File "/var/www/repositorios/PYTHON/dashboard/analyticsH.py", line 35, in get_service
scope=scope)
File "/var/www/repositorios/PYTHON/dashboard/oauth2client/util.py", line 137, in positional_wrapper
return wrapped(*args, **kwargs)
File "/var/www/repositorios/PYTHON/dashboard/oauth2client/client.py", line 1503, in __init__ _RequireCryptoOrDie()
File "/var/www/repositorios/PYTHON/dashboard/oauth2client/client.py", line 1457, in _RequireCryptoOrDie
raise CryptoUnavailableError('No crypto library available')
CryptoUnavailableError: No crypto library available
I've searched and all that I've found is install openssl or install python-crypto or update python-dev, I doing everything but not works.
Thank you.
I am trying to import a large User Information list from a json file to the datastore using taskqueue and deferred.
A User contains the user's information including an image url from a different app. During the importing process, the image should be grabbed and uploaded to the blob (which works just fine when tested).
I got stuck with getting the blob_key of the uploaded image.
And I think it only occurs inside a taskqueue/deferred because I tried it inside a 'normal' GET request handler, it works just fine.
This is my handler:
class MigrationTask(BaseHandler):
def post(self):
if not self.request.get('file'):
return
json_data = open(self.request.get('file'))
data = json.load(json_data)
json_data.close()
for datum in data['results']:
deferred.defer(push_user_to_db, datum)
this are my functions:
#ndb.transactional(xg=True)
def _push_user_to_db(profilePicture=None, ...):
if profilePicture:
if 'url' in profilePicture:
con = urlfetch.fetch(image_url)
if con.status_code == 200:
file_name = files.blobstore.create(mime_type='application/octet-stream')
with files.open(file_name, 'a') as f:
f.write(con.content)
files.finalize(file_name)
blob_key = files.blobstore.get_blob_key(file_name) # this part is where it errs
image_url = images.get_serving_url(file_name)
# some codes here...
def push_user_to_db(kwargs):
_push_user_to_db(**kwargs)
part of the traceback:
blob_key = files.blobstore.get_blob_key(file_name)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\files\blobstore.py", line 132, in get_blob_key
namespace='')])[0]
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\datastore.py", line 654, in Get
return GetAsync(keys, **kwargs).get_result()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\datastore.py", line 629, in GetAsync
return _GetConnection().async_get(config, keys, local_extra_hook)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\datastore\datastore_rpc.py", line 1574, in async_get
pbs = [key_to_pb(key) for key in keys]
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\model.py", line 653, in key_to_pb
return key.reference()
AttributeError: 'Key' object has no attribute 'reference'
PS: I've also tried taskqueue instead of deferred.
EDIT(1):
This is the traceback:
ERROR 2015-03-03 06:32:44,720 webapp2.py:1552] 'Key' object has no attribute 'reference'
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\deferred\deferred.py", line 310, in post
self.run_from_request()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\deferred\deferred.py", line 305, in run_from_request
run(self.request.body)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\deferred\deferred.py", line 147, in run
return func(*args, **kwds)
File "C:\project directory\migration.py", line 141, in push_user_to_db
_push_user_to_db(**kwargs)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\utils.py", line 179, in inner_wrapper
return wrapped_decorator(func, args, kwds, **options)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\model.py", line 3759, in transactional
func, args, kwds, **options).get_result()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\tasklets.py", line 325, in get_result
self.check_success()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\tasklets.py", line 371, in _help_tasklet_along
value = gen.send(val)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\context.py", line 999, in transaction
result = callback()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\model.py", line 3767, in <lambda>
return transaction_async(lambda: func(*args, **kwds), **options)
File "C:\project directory\migration.py", line 56, in _push_user_to_db
blob_key = files.blobstore.get_blob_key(file_name)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\files\blobstore.py", line 132, in get_blob_key
namespace='')])[0]
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\datastore.py", line 654, in Get
return GetAsync(keys, **kwargs).get_result()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\datastore.py", line 629, in GetAsync
return _GetConnection().async_get(config, keys, local_extra_hook)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\datastore\datastore_rpc.py", line 1574, in async_get
pbs = [key_to_pb(key) for key in keys]
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\ndb\model.py", line 653, in key_to_pb
return key.reference()
AttributeError: 'Key' object has no attribute 'reference'
Heads up! Writing files to the Blobstore using the files api has been deprecated. I had this issue before. My codes run perfectly fine in development server (localhost) but erred on App Engine server. The solution is to write the files in the Google Cloud Storage via Blobstore API.
I'm new to webapp2. I've tried to make a custom user model compilant with authentication system.
But every time my program calls get_user_by_password it raises an TypeError: cannot concatenate 'str' and 'NoneType' objects.
I've tried even to run somebody elses applications with custom models and it won't work neither.
For example I get the same error with this project https://gist.github.com/jgeewax/2942374.
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "D:\STUDIA\Semestr 10\Praca Magisterska\Projekty\test\main.py", line 83, in dispatch
response = super(BaseHandler, self).dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "D:\STUDIA\Semestr 10\Praca Magisterska\Projekty\test\main.py", line 141, in post
self.auth.get_user_by_password(username, password)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2_extras\auth.py", line 459, in get_user_by_password
silent=silent)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2_extras\auth.py", line 278, in validate_password
return self.get_user_by_auth_password(auth_id, password, silent=silent)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2_extras\auth.py", line 151, in get_user_by_auth_password
return self.user_to_dict(user)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2_extras\auth.py", line 207, in user_to_dict
user_dict = dict((a, getattr(user, a)) for a in self.user_attributes)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2_extras\auth.py", line 207, in <genexpr>
user_dict = dict((a, getattr(user, a)) for a in self.user_attributes)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\db\__init__.py", line 604, in __get__
return getattr(model_instance, self._attr_name())
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\ext\db\__init__.py", line 752, in _attr_name
return '_' + self.name
TypeError: cannot concatenate 'str' and 'NoneType' objects
The error explains that you cannot perform string concatenation of a string ('_') and an object which value is None. It means at this point self.name is None, so you need to trace where self.name is being defined, and if you are storing the value correctly
If you still want to concatenate the two values, consider using string formatting instead of the '+' sign.
eg return '_%s' % self.name would return '_None' if self.name value is None
My problem when trying to resize an image using the image class in google app engine.
The error is displayed below. This happens for every type of image including .jpg,.png,etc
Internal Server Error
The server has either erred or is incapable of performing the requested operation.
Traceback (most recent call last):
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in __call__
return handler.dispatch()
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "C:\Program Files (x86)\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "C:\Users\prudhvir\Desktop\projectbyprudhviraj\main.py", line 252, in post
avatar = images.resize(user_dp, 32, 32)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 1095, in resize
return rpc.get_result()
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 612, in get_result
return self.__get_result_hook(self)
File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\images\__init__.py", line 886, in execute_transforms_hook
raise _ToImagesError(e, self._blob_key)
BadImageError
I'm trying to look into a subdirectory to obtain all unicode filenames in App Engine, but it gives me this instead. It works, however, when the subdirectory is filled with non-unicode filenames.
Traceback (most recent call last):
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1102, in __call__
return handler.dispatch()
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "/base/data/home/apps/s~theonlyrt6/1.372787192964623739/main.py", line 69, in get
'titles' : os.listdir("./Articles")
OSError: [Errno 2] No such file or directory: './Articles'
This is my code:
template_values = {
'titles' : os.listdir("./Articles")
}
template = jinja_environment.get_template('HTML/Articles.html')
self.response.write(template.render(template_values))
The sub-directory is not uploaded as a static directory and it works when run locally.
Thanks!
Based on the example jinja app, the html files appears to uploaded automatically.