how to use django password change form PasswordChangeForm

views.py

@login_required
def change_password(request):
    if request.method == 'POST':
        form = PasswordChangeForm(request.user, data=request.POST)
        if form.is_valid():
            form.save()
            update_session_auth_hash(request, form.user) # dont logout the user.
            messages.success(request, "Password changed.")
            return redirect("/")
    else:
        form = PasswordChangeForm(request.user)
    data = {
        'form': form
    }
    return render(request, "accounts/change_password.html", data)