How can I run a function when user registers Django

Question

I am developing a server using Django and wanted when a user registers to run a function that would create a directory with the user name. The folder with the new user name will be stored in Collections. My code is as follows:

Models py.

from django.db import models
from django.contrib.auth.models import (
BaseUserManager, AbstractBaseUser
)  

class UserManager(BaseUserManager):
def create_user(self, username, first_name, last_name, email, password=None):
    """
    Creates and saves a user with the given variables and password.
    """
    if not email:
        raise ValueError('Users must have an email address')

    user = self.model(
        email=self.normalize_email(email),
        username=username,
        first_name=first_name,
        last_name=last_name,
    )

    user.set_password(password)
    user.save(using=self._db)
    return user

def create_superuser(self, username, first_name, last_name, email, password=None, is_admin=True):
    """
    Creates and saves a superuser with the given variables and password.
    """
    user = self.model(
        email=self.normalize_email(email),
        username=username,
        first_name=first_name,
        last_name=last_name,
        is_admin = is_admin,
    )

    user.set_password(password)
    user.save(using=self._db)
    return user


    class User(AbstractBaseUser):
    email = models.EmailField(
    verbose_name='email address',
    max_length=255,
    unique=True,
 )
username = models.CharField(max_length=255, unique=True)
first_name = models.CharField(max_length=100, unique=False)
last_name = models.CharField(max_length=100, unique=False)
is_active = models.BooleanField(default=True, unique=False)
is_admin = models.BooleanField(default=False, unique=False)
user_collection = models.CharField(max_length=500, default='NotCreated', unique=False)

objects = UserManager()

USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['first_name', 'last_name', 'email']

def __str__(self):
    return self.username

def has_perm(self, perm, obj=None):
    return True

def has_module_perms(self, app_label):
    return True

@property
def is_staff(self):
    return self.is_admin

Image with Directories

Is there any way to do this?

Answer 1

Add this into the "create_user function":

import os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
os.mkdir(os.path.join(BASE_DIR, 'Collections/{}'.format(self.username)))