python
from django.contrib.auth.models import User
from django.db import models

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    profile_picture = models.ImageField(upload_to='profile_pics/')        
    bio = models.TextField()
    # Add more fields as needed

# To retrieve the user profile:
try:
    user_profile = UserProfile.objects.get(user=request.user)
except UserProfile.DoesNotExist:
    user_profile = None

if user_profile:
    # Access user profile data here