I have two apps named collection, accounts. Both apps have models defined. I am importing a model ReporterProfile from accounts app to collection. Similarly, a model Report from the app collection to accounts.
The Report model from collection app is called in a model class method in accounts app like this:
from collection.models import Report
class ReporterProfile(models.Model):
....
def published_articles_number(self):
num = Report.objects.filter(reporterprofile=self.id).count()
return num
Similarly, I am importing ReporterProfile and User models from accounts app to collection app model like this:
from accounts.models import ReporterProfile, User
from <project_name> import settings
class Report(models.Model):
reporterprofile = models.ForeignKey(ReporterProfile, on_delete=models.CASCADE, verbose_name="Report Author")
...
class Comment(models.Model):
report = models.ForeignKey(Report, on_delete=models.CASCADE, related_name='comments')
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, verbose_name="Comment by")
...
When running the server or makemigrations, I'm getting the error:
File "F:\project_name\accounts\models.py", line 8, in from collection.models import Report
File "F:\project_name\collection\models.py", line 2, in from accounts.models import ReporterProfile, User
ImportError: cannot import name 'ReporterProfile' from partially initialized module 'accounts.models' (most likely due to a circular import) (F:\project_name\accounts\models.py)
I think the error is coming because of wrong importing pattern. What should I do?
For ForeignKey:
Instead of using reporterprofile = models.ForeignKey(ReporterProfile, ...), you can use reporterprofile = models.ForeignKey("accounts.ReporterProfile", ...), so you don't have to import the model.
For preventing circulor import error :
Instead of using :
from accounts.models import ReporterProfile
[...]
foo = ReporterProfile()
You can use:
import accounts.models
[...]
foo = accounts.models.ReporterProfile()
Make sure you are writting the create models nane because I got the same issue and when take a look on my import I wrote userFormdata instead of userformData (I capitalized the 'f')
#wrong inport
from users_handler.models import userFormData
#Correct import
from users_handler.models import userformData
import the models like below
import collection
class ReporterProfile(models.Model):
....
def published_articles_number(self):
num = collection.models.Report.objects.filter(reporterprofile=self.id).count()
return num
similarly
import accounts
from <project_name> import settings
class Report(models.Model):
reporterprofile = models.ForeignKey(accounts.models.ReporterProfile, on_delete=models.CASCADE, verbose_name="Report Author")
...
class Comment(models.Model):
report = models.ForeignKey(accounts.models.Report, on_delete=models.CASCADE, related_name='comments')
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, verbose_name="Comment by")
...
Make sure you are naming the directories and files name properly (without conflicting them with the name of other modules or files which django import as part of start up process). I name of directory app and a file random.py . Django while start looks for something similar and instead of fetching the actual module if ends up on this files which I created. And hence the error or circular import exceptions.