CODE EXAMPLE FOR PYTHON

login view django

from django.contrib import messages
from django.contrib.auth import authenticate
from django.contrib.auth.forms import AuthenticationForm
from django.shortcuts import render, redirect

def login_view(request):
    if request.method == "POST":
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password= password)
            if user is not None:
                login(request, user)
                messages.info(request, f"You are now logged in as {username}.")
                return redirect ('inventory:home')
            else:
                messages.error(request, "Invalid username or password")
    else:
        messages.error(request, "Invalid username or password")
    form = AuthenticationForm()
    return render(request, 'registration/login.html', context={"login_form":form})