UndefinedError: 'str object' has no attribute 'date'

[Syxxxx]

System Health details

System Information

version	core-2025.12.1
installation_type	Home Assistant Container
dev	false
hassio	false
docker	true
container_arch	amd64
user	root
virtualenv	false
python_version	3.13.9
os_name	Linux
os_version	3.10.108
arch	x86_64
timezone	Europe/Paris
config_dir	/config

Home Assistant Community Store

GitHub API	ok
GitHub Content	ok
GitHub Web	ok
HACS Data	ok
GitHub API Calls Remaining	5000
Installed Version	2.0.5
Stage	running
Available Repositories	2483
Downloaded Repositories	30

Home Assistant Cloud

logged_in	true
subscription_expiration	1 janvier 2018 à 01:00
relayer_connected	false
relayer_region	null
remote_enabled	false
remote_connected	false
alexa_enabled	false
google_enabled	false
cloud_ice_servers_enabled	true
remote_server	null
certificate_status	null
instance_id	f1c8bd3ade7c440a9691bcca5b8c9153
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Dashboards

dashboards	13
resources	13
views	14
mode	storage

Recorder

oldest_recorder_run	27 novembre 2025 à 20:52
current_recorder_run	6 décembre 2025 à 20:06
estimated_db_size	389.21 MiB
database_engine	sqlite
database_version	3.49.2

Checklist

• I have enabled debug logging for my installation.
• I have filled out the issue template to the best of my ability.
• This issue only contains 1 issue (if you have multiple issues, open one issue for each issue).
• This issue is not a duplicate issue of any previous issues..

Describe the issue

Hello,
Sur certains trigger (ex : new_devoir)
l'objet trigger.event.data.data reçu a un format qui oblige HA a le transformer en str
ex :
{'devoir_id': 6097, 'date': datetime.datetime(2025, 11, 27, 0, 0), 'matiere': 'ANGLAIS'}
Il faudrait faire le formatage de la date en amont pour que l'objet soit toujours utilisable dans les automations et scripts.

Reproduction steps

1. attendre le trigger d'un nouveau devoir

...

Debug logs

UndefinedError: 'str object' has no attribute 'date'

Diagnostics dump

No response