run two celery task - django

Question

i use celery in django ,
i add a task to my project and get error, but before add this task my project is work good.
# app_account.celery_task.py
my first task is :
#shared_task
def send_birthday_email():
users = User.objects.filter(is_active=True, date_of_birth__isnull=False, email__isnull=False)
time = datetime.today()
for user in users:
if user.date_of_birth.day == time.day and user.date_of_birth.month == time.month:
send_mail(
f'happy birthday',
f'Happy birthday, dear {user.name}, have a good year',
'local#host.com',
[user.email],
)
my new task :
#shared_task
def send_password_reset_mail(mail_info):
send_mail(
subject=mail_info['subject'],
message=mail_info['message'],
from_email=mail_info['from_email'],
recipient_list=mail_info['recipient_list'],
)
second task use in this signal:
# this signal for send email reset password
#receiver(reset_password_token_created)
def password_reset_token_created(sender, instance, reset_password_token, *args, **kwargs):
email_plaintext_message = f"your token is = {reset_password_token.key}"
mail_info = {
'subject': 'Password Reset',
'message': email_plaintext_message,
'from_email': 'noreply#host.com',
'recipient_list': [reset_password_token.user.email],
}
send_password_reset_mail.delay(mail_info)
now , when i run by python manage.py runserver get this error
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/rahmanipy/Desktop/DrfBlog/venv/lib/python3.8/site-packages/django_rest_passwordreset/models.py", line 121, in <module>
UserModel = get_user_model()
File "/home/rahmanipy/Desktop/DrfBlog/venv/lib/python3.8/site-packages/django/contrib/auth/__init__.py", line 160, in get_user_model
return django_apps.get_model(settings.AUTH_USER_MODEL, require_ready=False)
File "/home/rahmanipy/Desktop/DrfBlog/venv/lib/python3.8/site-packages/django/apps/registry.py", line 209, in get_model
app_config.import_models()
File "/home/rahmanipy/Desktop/DrfBlog/venv/lib/python3.8/site-packages/django/apps/config.py", line 301, in import_models
self.models_module = import_module(models_module_name)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/home/rahmanipy/Desktop/DrfBlog/app_account/models.py", line 4, in <module>
from app_account.celery_tasks import send_password_reset_mail
File "/home/rahmanipy/Desktop/DrfBlog/app_account/celery_tasks.py", line 4, in <module>
from app_account.models import User
ImportError: cannot import name 'User' from partially initialized module 'app_account.models' (most likely due to a circular import) (/home/rahmanipy/Desktop/DrfBlog/app_account/models.py)
can anyone help me ???

Answer 1

You can inline import User inside your first task to avoid the circular import.
#shared_task
def send_birthday_email():
from app_account.models import User
users = User.objects.filter(is_active=True, date_of_birth__isnull=False, email__isnull=False)
time = datetime.today()
for user in users:
if user.date_of_birth.day == time.day and user.date_of_birth.month == time.month:
send_mail(
f'happy birthday',
f'Happy birthday, dear {user.name}, have a good year',
'local#host.com',
[user.email],
)