Django sitemap category page location not working - django

Question

I made sitemap to my site but i have some problems.
First problem is end of the sitemap.xml page, lots of codes in it, but how can i remove these lines.
Here is my sitemap https://www.endustri.io/sitemap.xml
And here is the codes which i wanna remove...
And Second problem is
I have category page forexample: https://www.endustri.io/kategori/makine/
When i make sitemap class like this
class CategorySitemap(Sitemap):
changefreq = 'weekly'
priority = 0.8
def items(self):
return Category.objects.all()
def lastmod(self, obj):
return obj.date_added
In sitemap my category links be like this https://www.endustri.io/makine/ but it must be like this https://www.endustri.io/kategori/makine/
How can i fix this?
Here is my model.py
from django.db import models
from django.contrib.auth.models import User
from tinymce import models as tinymce_models
from django.urls import reverse
class Category(models.Model):
title = models.CharField(max_length=255)
slug = models.SlugField()
date_added = models.DateTimeField(auto_now_add=True)
class Meta:
verbose_name_plural = 'Categories'
def __str__(self):
return str(self.title)
def get_absolute_url(self):
return reverse('detail', args=[str(self.slug)])
class Post(models.Model):
category = models.ForeignKey(Category, related_name="posts", on_delete=models.CASCADE)
title = models.CharField(max_length=300)
slug = models.SlugField(max_length=300)
intro = models.TextField()
body = tinymce_models.HTMLField()
description = models.TextField()
author = models.ForeignKey(User, on_delete=models.CASCADE)
featured_photo = models.ImageField(null=True, blank=True, upload_to="blog/")
date_added = models.DateTimeField(auto_now_add=True)
num_reads = models.PositiveIntegerField(default=0)
def __str__(self):
return str(self.title)
def get_absolute_url(self):
return reverse('detail', args=[str(self.slug)])
And sitemaps.py
from django.contrib.sitemaps import Sitemap
from .models import Post, Category
from django.urls import reverse
class PostSitemap(Sitemap):
changefreq = 'weekly'
priority = 0.9
def items(self):
return Post.objects.all().order_by('-id')
def lastmod(self, obj):
return obj.date_added
class CategorySitemap(Sitemap):
changefreq = 'weekly'
priority = 0.8
def items(self):
return Category.objects.all()
def lastmod(self, obj):
return obj.date_added