Chapter11 - Error on starting application

[fanchlegal]

Hi,

I launch the application with command : docker-compose up in the Chapter11 directory and I got this error :

app_1 | wait-for-it: db-postgres:5432 is available after 0 seconds
app_1 | wait-for-it: waiting 15 seconds for db-redis:6379
app_1 | wait-for-it: db-redis:6379 is available after 0 seconds
app_1 | /usr/local/lib/python3.10/site-packages/sanic_jwt/configuration.py:134: DeprecationWarning: There is no current event loop
app_1 | if asyncio.get_event_loop().is_running():
app_1 | Traceback (most recent call last):
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 146, in _get_app
app_1 | app = app(self.args)
app_1 | File "/app/booktracker/server.py", line 47, in create_app
app_1 | setup_modules(app, *module_names)
app_1 | TypeError: Value after * must be an iterable, not Namespace
app_1 |
app_1 | During handling of the above exception, another exception occurred:
app_1 |
app_1 | Traceback (most recent call last):
app_1 | File "/usr/local/bin/sanic", line 8, in
app_1 | sys.exit(main())
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/main.py", line 12, in main
app_1 | cli.run()
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 85, in run
app_1 | app = self._get_app()
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 148, in _get_app
app_1 | app = app()
app_1 | File "/app/booktracker/server.py", line 36, in create_app
app_1 | app = Sanic("BooktrackerApp", request_class=BooktrackerRequest)
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/app.py", line 223, in init
app_1 | self.class.register_app(self)
app_1 | File "/usr/local/lib/python3.10/site-packages/sanic/app.py", line 1461, in register_app
app_1 | raise SanicException(f'Sanic app name "{name}" already in use.')
app_1 | sanic.exceptions.SanicException: Sanic app name "BooktrackerApp" already in use.
booktracker_app_1 exited with code 1

Can you help me ?
Thanks

[ahopkins]

@fanchlegal Yes, I will check shortly. Just curious, which version of Sanic are you trying with?

[fanchlegal]

@ahopkins Yes this is my version : Sanic 22.6.2; Routing 22.3.0

[fanchlegal]

I just launch docker-compose up in the directory Le lun. 19 sept. 2022 à 18:20, Adam Hopkins ***@***.***> a écrit :

…

🤔 The code in Chapter 11 should be all within a docker container, running v21.12. Can you let me know how you ran the commands? — Reply to this email directly, view it on GitHub <#12 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAE7KHSMJBR3JYUMJCRB3F3V7CHFTANCNFSM6AAAAAAQO6ITCU> . You are receiving this because you were mentioned.Message ID: <PacktPublishing/Python-Web-Development-with-Sanic/issues/12/1251244643@ github.com>

[ahopkins]

@fanchlegal I see the problem. The code was written for v21.12, but the requirements.txt are not pinned for that. In a recent version of Sanic, we inject arguments into the factory pattern.

See https://sanic.dev/en/guide/release-notes/v22.3.html#cli-arguments-optionally-injected-into-application-factory

This is breaking the pattern. I will get a code fix pushed to the repository. In the mean time you could pin the version in requirements.txt to sanic==21.12.

Thanks for bringing this to my attention.

[fanchlegal]

@ahopkins : i change the version in the requirements.txt file and now i got this error :

Starting in v22.3, --debug will no longer automatically run the auto-reloader.
booktracker-app-1 | Switch to --dev to continue using that functionality.
booktracker-app-1 | /usr/local/lib/python3.10/site-packages/sanic_jwt/configuration.py:134: DeprecationWarning: There is no current event loop
booktracker-app-1 | if asyncio.get_event_loop().is_running():
booktracker-app-1 | Traceback (most recent call last):
booktracker-app-1 | File "/usr/local/bin/sanic", line 8, in
booktracker-app-1 | sys.exit(main())
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic/main.py", line 12, in main
booktracker-app-1 | cli.run()
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 75, in run
booktracker-app-1 | app = self._get_app()
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 147, in _get_app
booktracker-app-1 | raise e
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic/cli/app.py", line 130, in _get_app
booktracker-app-1 | app = app()
booktracker-app-1 | File "/app/booktracker/server.py", line 47, in create_app
booktracker-app-1 | setup_modules(app, *module_names)
booktracker-app-1 | File "/app/booktracker/worker/module.py", line 11, in setup_modules
booktracker-app-1 | module = import_module(module_name)
booktracker-app-1 | File "/usr/local/lib/python3.10/importlib/init.py", line 126, in import_module
booktracker-app-1 | return _bootstrap._gcd_import(name[level:], package, level)
booktracker-app-1 | File "", line 1050, in _gcd_import
booktracker-app-1 | File "", line 1027, in _find_and_load
booktracker-app-1 | File "", line 1006, in _find_and_load_unlocked
booktracker-app-1 | File "", line 688, in _load_unlocked
booktracker-app-1 | File "", line 883, in exec_module
booktracker-app-1 | File "", line 241, in _call_with_frames_removed
booktracker-app-1 | File "/app/booktracker/blueprints/view.py", line 3, in
booktracker-app-1 | from .author.view import bp as author_bp
booktracker-app-1 | File "/app/booktracker/blueprints/author/view.py", line 7, in
booktracker-app-1 | from sanic_ext import validate
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/init.py", line 3, in
booktracker-app-1 | from sanic_ext.bootstrap import Extend
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/bootstrap.py", line 14, in
booktracker-app-1 | from sanic_ext.extensions.http.extension import HTTPExtension
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/extensions/http/extension.py", line 4, in
booktracker-app-1 | from .methods import add_auto_handlers, add_http_methods
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/extensions/http/methods.py", line 12, in
booktracker-app-1 | from ..openapi import openapi
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/extensions/openapi/openapi.py", line 25, in
booktracker-app-1 | from sanic_ext.extensions.openapi import definitions
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/extensions/openapi/definitions.py", line 23, in
booktracker-app-1 | from .types import Definition, Schema
booktracker-app-1 | File "/usr/local/lib/python3.10/site-packages/sanic_ext/extensions/openapi/types.py", line 17, in
booktracker-app-1 | from sanic_routing.patterns import nonemptystr
booktracker-app-1 | ImportError: cannot import name 'nonemptystr' from 'sanic_routing.patterns' (/usr/local/lib/python3.10/site-packages/sanic_routing/patterns.py)