Tyring to set up modelview with Flask-Admin causes ImportError
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I am trying to add a User model view to Flask-Admin. However, I get ImportError: cannot import name db. Why is this happening and how do I fix it?
app/__init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import flask_admin as admin
from app.models import User
db = SQLAlchemy()
admin = admin.Admin(name="Admin Panel")
def create_app(config_name):
app = Flask(__name__)
db.init_app(app)
admin.init_app(app)
admin.add_view(ModelView(User, db.session))
return app
app/models.py:
from . import db, login_manager
class User(UserMixin, db.Model):
__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True)
When I add admin.add_view(ModelView(User, db.session)), I have to add from app.models import User as well. I get this error after adding these lines:
Traceback (most recent call last):
File "manage.py", line 3, in <module>
from app.models import User, Role
File "/home/qadim/PycharmProjects/esouq/app/__init__.py", line 1, in <module>
from app.models import User
File "/home/qadim/PycharmProjects/esouq/app/models.py", line 9, in <module>
from . import db, login_manager
ImportError: cannot import name db
python flask flask-sqlalchemy flask-admin
edited May 28 '15 at 18:21
davidism
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
add a comment |
I am trying to add a User model view to Flask-Admin. However, I get ImportError: cannot import name db. Why is this happening and how do I fix it?
app/__init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import flask_admin as admin
from app.models import User
db = SQLAlchemy()
admin = admin.Admin(name="Admin Panel")
def create_app(config_name):
app = Flask(__name__)
db.init_app(app)
admin.init_app(app)
admin.add_view(ModelView(User, db.session))
return app
app/models.py:
from . import db, login_manager
class User(UserMixin, db.Model):
__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True)
When I add admin.add_view(ModelView(User, db.session)), I have to add from app.models import User as well. I get this error after adding these lines:
Traceback (most recent call last):
File "manage.py", line 3, in <module>
from app.models import User, Role
File "/home/qadim/PycharmProjects/esouq/app/__init__.py", line 1, in <module>
from app.models import User
File "/home/qadim/PycharmProjects/esouq/app/models.py", line 9, in <module>
from . import db, login_manager
ImportError: cannot import name db
python flask flask-sqlalchemy flask-admin
edited May 28 '15 at 18:21
davidism
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
add a comment |
I am trying to add a User model view to Flask-Admin. However, I get ImportError: cannot import name db. Why is this happening and how do I fix it?
app/__init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import flask_admin as admin
from app.models import User
db = SQLAlchemy()
admin = admin.Admin(name="Admin Panel")
def create_app(config_name):
app = Flask(__name__)
db.init_app(app)
admin.init_app(app)
admin.add_view(ModelView(User, db.session))
return app
app/models.py:
from . import db, login_manager
class User(UserMixin, db.Model):
__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True)
When I add admin.add_view(ModelView(User, db.session)), I have to add from app.models import User as well. I get this error after adding these lines:
Traceback (most recent call last):
File "manage.py", line 3, in <module>
from app.models import User, Role
File "/home/qadim/PycharmProjects/esouq/app/__init__.py", line 1, in <module>
from app.models import User
File "/home/qadim/PycharmProjects/esouq/app/models.py", line 9, in <module>
from . import db, login_manager
ImportError: cannot import name db
python flask flask-sqlalchemy flask-admin
edited May 28 '15 at 18:21
davidism
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
I am trying to add a User model view to Flask-Admin. However, I get ImportError: cannot import name db. Why is this happening and how do I fix it?
app/__init__.py:
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import flask_admin as admin
from app.models import User
db = SQLAlchemy()
admin = admin.Admin(name="Admin Panel")
def create_app(config_name):
app = Flask(__name__)
db.init_app(app)
admin.init_app(app)
admin.add_view(ModelView(User, db.session))
return app
app/models.py:
from . import db, login_manager
class User(UserMixin, db.Model):
__tablename__ = 'users'
id = db.Column(db.Integer, primary_key=True)
When I add admin.add_view(ModelView(User, db.session)), I have to add from app.models import User as well. I get this error after adding these lines:
Traceback (most recent call last):
File "manage.py", line 3, in <module>
from app.models import User, Role
File "/home/qadim/PycharmProjects/esouq/app/__init__.py", line 1, in <module>
from app.models import User
File "/home/qadim/PycharmProjects/esouq/app/models.py", line 9, in <module>
from . import db, login_manager
ImportError: cannot import name db
python flask flask-sqlalchemy flask-admin
python flask flask-sqlalchemy flask-admin
edited May 28 '15 at 18:21
davidism
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
edited May 28 '15 at 18:21
davidism
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
edited May 28 '15 at 18:21
davidism
66.3k12184194
edited May 28 '15 at 18:21
davidism
66.3k12184194
edited May 28 '15 at 18:21
davidism
66.3k12184194
66.3k12184194
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
asked May 28 '15 at 17:56
qasimalbaqaliqasimalbaqali
1,0081232
1,0081232
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Your code has the line from app.models import User in __init__.py. The problem is that app.models has from . import db. This is a circular import: __init__ tries to import User, which tries to import db, which isn't defined until after __init__ tries to import User. To solve this, move your local app imports below the definitions of all the global extension stuff.
Currently, your code looks something like:
from flask_sqlalchemy import SQLAlchemy
from app.models import User
db = SQLAlchemy()
You need to change it to:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from app.models import User
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
add a comment |
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1 Answer
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1 Answer
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oldest
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votes
Your code has the line from app.models import User in __init__.py. The problem is that app.models has from . import db. This is a circular import: __init__ tries to import User, which tries to import db, which isn't defined until after __init__ tries to import User. To solve this, move your local app imports below the definitions of all the global extension stuff.
Currently, your code looks something like:
from flask_sqlalchemy import SQLAlchemy
from app.models import User
db = SQLAlchemy()
You need to change it to:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from app.models import User
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
add a comment |
Your code has the line from app.models import User in __init__.py. The problem is that app.models has from . import db. This is a circular import: __init__ tries to import User, which tries to import db, which isn't defined until after __init__ tries to import User. To solve this, move your local app imports below the definitions of all the global extension stuff.
Currently, your code looks something like:
from flask_sqlalchemy import SQLAlchemy
from app.models import User
db = SQLAlchemy()
You need to change it to:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from app.models import User
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
add a comment |
Your code has the line from app.models import User in __init__.py. The problem is that app.models has from . import db. This is a circular import: __init__ tries to import User, which tries to import db, which isn't defined until after __init__ tries to import User. To solve this, move your local app imports below the definitions of all the global extension stuff.
Currently, your code looks something like:
from flask_sqlalchemy import SQLAlchemy
from app.models import User
db = SQLAlchemy()
You need to change it to:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from app.models import User
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
Your code has the line from app.models import User in __init__.py. The problem is that app.models has from . import db. This is a circular import: __init__ tries to import User, which tries to import db, which isn't defined until after __init__ tries to import User. To solve this, move your local app imports below the definitions of all the global extension stuff.
Currently, your code looks something like:
from flask_sqlalchemy import SQLAlchemy
from app.models import User
db = SQLAlchemy()
You need to change it to:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from app.models import User
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
edited May 28 '15 at 18:27
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
answered May 28 '15 at 18:03
davidismdavidism
66.3k12184194
66.3k12184194
add a comment |
add a comment |
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