[Answer]-Realistic data generator package available for Django

You may need to try Mixer. It Provides fakers tool to generate most of the useful items for database.

if this is you user model:

class User(db.Model):
    __tablename__ = 'user'

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(128), unique=True)
    email = db.Column(db.String(255), unique=True)
    city = db.Column(db.String(255))
    country = db.Column(db.String(255))

you query will be:

from mixer import fakers as f
from models import User

name = f.get_name()
country = f.get_country()
email = f.get_email()
city = f.get_city()

s = db.session
user = User(name=name, email=email, city=city, country=country)
s.add(user)
s.commit()
s.close()

You can more details Here :

https://mixer.readthedocs.org/en/latest/fakers.html