"'Image' is not JSON serializable", problem may have to do with cookies?

collab1 · May 17, 2018, 2:59pm

TLDR: How do you delete cookies?

I use python to manage my Docker images and containers. This has worked fine for months, but suddenly this command:

image = client.images.build(path=args.program_folder, nocache=args.force_docker_recompilation)
client.containers.run(image=image, volumes=folder_mapping)

raises an exception:

TypeError: Object of type 'Image' is not JSON serializable

I have investigated and found this page, which seems to be talking about a similar issue:

github.com/puckel/docker-airflow

UI breaks on TypeError: Object of type 'bytes' is not JSON serializable

opened 04:03PM - 12 Sep 17 UTC

closed 07:03PM - 13 Sep 17 UTC

JohnLZeller

I am running off of `latest`, which at this time is `1.8.2`. I setup a simple… Hello World with my own DAG, installed using a simple `docker-compose.yml`. ``` # docker-compose.yml version: '2' services: airflow: image: puckel/docker-airflow volumes: - ./dags/:/usr/local/airflow/dags/ - ./plugins/:/usr/local/airflow/plugins/ - ./requirements.txt:/requirements.txt ports: - "8080:8080" environment: LOAD_EX: n ``` My `requirements.txt` is really small too. ``` # requirements.txt beautifulsoup4==4.6.0 bs4==0.0.1 ``` The issue comes when I am attempting to look at my DAG. Attempting to visit: `http://localhost:8080/admin/airflow/tree?dag_id=mydag` produces the following traceback. And this happens for any link relating to the dag, except for `trigger` it seems. ``` ____/ ( ( ) ) \___ /( ( ( ) _ )) ) )\ (( ( )( ) ) ( ) ) ((/ ( _( ) ( _) ) ( () ) ) ( ( ( (_) (( ( ) .((_ ) . )_ ( ( ) ( ( ) ) ) . ) ( ) ( ( ( ( ) ( _ ( _) ). ) . ) ) ( ) ( ( ( ) ( ) ( )) ) _)( ) ) ) ( ( ( \ ) ( (_ ( ) ( ) ) ) ) )) ( ) ( ( ( ( (_ ( ) ( _ ) ) ( ) ) ) ( ( ( ( ( ) (_ ) ) ) _) ) _( ( ) (( ( )( ( _ ) _) _(_ ( (_ ) (_((__(_(__(( ( ( | ) ) ) )_))__))_)___) ((__) \\||lll|l||/// \_)) ( /(/ ( ) ) )\ ) ( ( ( ( | | ) ) )\ ) ( /(| / ( )) ) ) )) ) ( ( ((((_(|)_))))) ) ( ||\(|(|)|/|| ) ( |(||(||)|||| ) ( //|/l|||)|\\ \ ) (/ / // /|//||||\\ \ \ \ _) ------------------------------------------------------------------------------- Node: 303f7161391a ------------------------------------------------------------------------------- Traceback (most recent call last): File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1988, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1641, in full_dispatch_request rv = self.handle_user_exception(e) File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1544, in handle_user_exception reraise(exc_type, exc_value, tb) File "/usr/local/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise raise value File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1639, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1625, in dispatch_request return self.view_functions[rule.endpoint](**req.view_args) File "/usr/local/lib/python3.6/site-packages/flask_admin/base.py", line 69, in inner return self._run_view(f, *args, **kwargs) File "/usr/local/lib/python3.6/site-packages/flask_admin/base.py", line 368, in _run_view return fn(self, *args, **kwargs) File "/usr/local/lib/python3.6/site-packages/flask_login.py", line 755, in decorated_view return func(*args, **kwargs) File "/usr/local/lib/python3.6/site-packages/airflow/www/utils.py", line 219, in view_func return f(*args, **kwargs) File "/usr/local/lib/python3.6/site-packages/airflow/www/utils.py", line 125, in wrapper return f(*args, **kwargs) File "/usr/local/lib/python3.6/site-packages/airflow/www/views.py", line 1252, in tree 'num_runs': num_runs}) File "/usr/local/lib/python3.6/site-packages/wtforms/form.py", line 212, in __call__ return type.__call__(cls, *args, **kwargs) File "/usr/local/lib/python3.6/site-packages/flask_wtf/form.py", line 157, in __init__ super(Form, self).__init__(*args, **kwargs) File "/usr/local/lib/python3.6/site-packages/flask_wtf/form.py", line 87, in __init__ super(FlaskForm, self).__init__(formdata=formdata, **kwargs) File "/usr/local/lib/python3.6/site-packages/wtforms/form.py", line 278, in __init__ self.process(formdata, obj, data=data, **kwargs) File "/usr/local/lib/python3.6/site-packages/wtforms/form.py", line 132, in process field.process(formdata) File "/usr/local/lib/python3.6/site-packages/wtforms/csrf/core.py", line 43, in process self.current_token = self.csrf_impl.generate_csrf_token(self) File "/usr/local/lib/python3.6/site-packages/flask_wtf/csrf.py", line 134, in generate_csrf_token token_key=self.meta.csrf_field_name File "/usr/local/lib/python3.6/site-packages/flask_wtf/csrf.py", line 47, in generate_csrf setattr(g, field_name, s.dumps(session[field_name])) File "/usr/local/lib/python3.6/site-packages/itsdangerous.py", line 565, in dumps payload = want_bytes(self.dump_payload(obj)) File "/usr/local/lib/python3.6/site-packages/itsdangerous.py", line 847, in dump_payload json = super(URLSafeSerializerMixin, self).dump_payload(obj) File "/usr/local/lib/python3.6/site-packages/itsdangerous.py", line 550, in dump_payload return want_bytes(self.serializer.dumps(obj)) File "/usr/local/lib/python3.6/site-packages/itsdangerous.py", line 51, in dumps return json.dumps(obj, separators=(',', ':')) File "/usr/local/lib/python3.6/json/__init__.py", line 238, in dumps **kw).encode(obj) File "/usr/local/lib/python3.6/json/encoder.py", line 199, in encode chunks = self.iterencode(o, _one_shot=True) File "/usr/local/lib/python3.6/json/encoder.py", line 257, in iterencode return _iterencode(o, 0) File "/usr/local/lib/python3.6/json/encoder.py", line 180, in default o.__class__.__name__) TypeError: Object of type 'bytes' is not JSON serializable ```

The solution says:

Got it. You've got to clear your cookies. Most likely you were running python2 and now running python3, but the cookies are still set to python2.

Which sounds like it could help me, because I did in fact switch python versions recently.

Unfortunately it doesn’t actually explain HOW to clear cookies, or even which cookies they are talking about. I am not setting any cookies myself. Do I need to run a python command? A Docker command? Who’s cookies are the problems, and how do I get rid of them?

martinon · April 14, 2021, 2:41pm

The method build returns two items. To run, only need the image. Try image=image[0] when you use run.

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