How to authenticate for login - django

Question

How I can authenticate my user for login ,here authenticate does not work properly
I have used authenticate for login
views.py
from django.shortcuts import render
from basic_app.models import Signup
from django.contrib.auth import authenticate,login,logout
from django.http import HttpResponse,HttpResponseRedirect
from django.urls import reverse
from django.contrib.auth.decorators import login_required
def signup(request):
if request.method=="POST":
obj=Signup()
obj.username=request.POST.get('username')
obj.password=request.POST.get('password')
obj.save()
context={'username':'username'}
return render(request,'basic_app/singup.html',context)
else:
return render(request,'basic_app/singup.html')
def login(request):
if request.method=="POST":
username=request.POST.get('username')
password=request.POST.get('password')
user=authenticate(username=username,password=password)
if user:
login(request,user)
return HttpResponse("you have login")
else:
return HttpResponse("wrong password or username")
else:
return render(request,'basic_app/login.html')

Answer 1

You should login using login after authenticating.
user = authenticate(username=request.POST.get('username',''),
password=request.POST.get('password',''))
login(request, user)
Read:https://docs.djangoproject.com/en/2.1/topics/auth/default/#how-to-log-a-user-in

Answer 2

Actually, you can use Django's inbuilt LoginView ("https://docs.djangoproject.com/en/2.1/topics/auth/default/#django.contrib.auth.views.LoginView")
If you want to change the layout style. Either override the Django login template or override the class view.
For overriding the class view:
from django.contrib.auth.views import LoginView
class MySignInView(LoginView):
form_class = MySignInForm
template_name = 'mylife/myrules/login.html'

Answer 3

I have edited your following code :
from django.shortcuts import render
from basic_app.models import Signup
from django.contrib.auth import authenticate,login,logout
from django.http import HttpResponse,HttpResponseRedirect
from django.urls import reverse
from django.contrib.auth.decorators import login_required
def login(request):
if request.method=="POST":
username=request.POST.get('username')
password=request.POST.get('password')
user=authenticate(username=username,password=password)
if user:
login(request,user)
return HttpResponse("you have login")
else:
return HttpResponse("wrong password or username")
else:
return render(request,'basic_app/login.html')
1) When you authenticate your username and password, it just returns User and it doesn't make you to login,
2) for login you have to call login(requst,user),it will create session in your database as acknowledgment