[Python] I always face this problem Reverse for 'detail' with arguments '('',)' not found. 1...

I am Malek I am working on a blog using django

but I am facing this problem with the url and pk

Reverse for 'detail' with arguments '('',)' not found. 1 pattern(s) tried: ['post/(?P<post_id>[0-9]+)/\Z']

I hope someone can help me solve this problem

enter image description here

here are my django codes for each file

views.py

from django.shortcuts import render, get_object_or_404
from .models import AboutUs, Name, Skills, Portfolio, Navlink, Contact, Blog
from django.http import HttpResponse
# Create your views here.


def index(request):
if request.method == "POST":
contact = Contact()
user_name = request.POST.get('name')
email = request.POST.get('email')
subject = request.POST.get('subject')

contact.name = user_name
contact.email = email
contact.message = subject
contact.save()
return render(request, 'sent.html', context={'link': Navlink.objects.first()})

return render(request, 'index.html', context= {
'about_us': AboutUs.objects.first(),
'name': Name.objects.first(),
'skills': Skills.objects.all(),
'image' : Portfolio.objects.all(),
'link': Navlink.objects.all(),
'blog': Blog.objects.all(),
})



def post_details(request, id):
post = get_object_or_404(Blog, pk= id)
details = {
'post_id' : post,
'title' : 'title',
}
return render(request, 'post.html', details)

def home(request):
return render(request, 'index.html')


def posts(request):
return render(request, 'posts.html', context={'posts': Blog.objects.all()})
"""def post(request):
return render(request, 'product.html')"""


urls.py

from django.urls import path
from . import views

urlpatterns = [
#path('', views.home, name='home'),
path('', views.index, name='home'),
path('', views.home, name='home'),
path('post/<intost_id>/', views.post_details, name='detail'),
path('posts/', views.posts, name='posts'),
]



models.py

from django.db import models
from django import forms

# Create your models here.


class AboutUs(models.Model):
content = models.TextField()

def __str__(self):
return self.content[:50] + '...'

#-----------------------------------------------------------------

class Name(models.Model):
name = models.CharField(max_length=15)

def __str__(self):
return self.name

#-----------------------------------------------------------------

class Skills(models.Model):
levels = [
('Beginner', 'Beginner'),
('Good', 'Good'),
('Skillful', 'Skillful'),
('Professional', 'Professional'),
('Expert', 'Expert'),
]

icon = models.ImageField(upload_to='photos/%y/%m/%d')
skill = models.CharField(max_length=15, null=False, blank=False)
level = models.CharField(max_length=30, null=False, blank=False, choices= levels)

def __str__(self):
return self.skill

class Meta:
verbose_name = 'Skill'

#-----------------------------------------------------------------

class Portfolio(models.Model):
categories = [
('Web Sites', 'Web Sites'),
('Photographs', 'Photographs'),
('3D', '3D'),
('Brands', 'Brands'),
('Photoshop', 'Photoshop'),

]

name = models.CharField(max_length=50, null=False, blank=False)
image = models.ImageField(upload_to='photos/%y/%m/%d')
category = models.CharField(max_length=50, choices= categories, default='3D')

def __str__(self):
return self.name

class Meta:
verbose_name = 'Portfolio Image'


#-----------------------------------------------------------------


class Navlink(models.Model):
linkname = models.CharField(max_length=15)
link = models.CharField(max_length=50)


#-----------------------------------------------------------------


class Contact(models.Model):
name = models.CharField(max_length=100)
email = models.EmailField()
message = models.TextField()
def __str__(self):
return self.name
class Meta:
verbose_name = 'Message'


#-----------------------------------------------------------------


class Blog(models.Model):
authers = [
('Malek Anas', 'Malek Anas'),
]

id = models.AutoField(primary_key= True)
blog_img = models.ImageField(upload_to='photos/%y/%m/%d')
blog_title = models.CharField(max_length=100)
blog_content = models.TextField()
blog_auther = models.CharField(max_length=50, choices= authers)
blog_date = models.DateField(auto_now=True)
def __str__(self):
return self.blog_title

class Meta:
verbose_name = 'Post'


admin.py

from django.contrib import admin
from .models import AboutUs, Name, Skills, Portfolio, Navlink, Contact, Blog
# Register your models here.

class AboutUsAdmin(admin.ModelAdmin):
list_display = ('content',)

admin.site.register(AboutUs, AboutUsAdmin)


#-----------------------------------------------


class NameAdmin(admin.ModelAdmin):
list_display = ('name',)

admin.site.register(Name, NameAdmin)


#-----------------------------------------------


class SkillsAdmin(admin.ModelAdmin):
list_display = ('skill',)
search_fields = ('skill',)

admin.site.register(Skills, SkillsAdmin)


#-----------------------------------------------


class PortfolioAdmin(admin.ModelAdmin):
list_display = ('name',)
search_fields = ('name',)
list_filter = ('category',)

admin.site.register(Portfolio, PortfolioAdmin)


#-----------------------------------------------


class NavlinkAdmin(admin.ModelAdmin):
list_display = ('linkname',)
search_fields = ('linkname',)

admin.site.register(Navlink, NavlinkAdmin)


#-----------------------------------------------


class ContactAdmin(admin.ModelAdmin):
list_display = ('name',)
search_fields = ('name',)

admin.site.register(Contact, ContactAdmin)


#-----------------------------------------------


class BlogAdmin(admin.ModelAdmin):
list_display = ('blog_title',)
search_fields = ('blog_title', 'blog_auther')

admin.site.register(Blog, BlogAdmin)


# Admin Customization
admin.site.site_header = 'Alsayed Design Administration'
admin.site.site_title = 'Alsayed Design'


I tried many ways but no one of them worked with me

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