CI Python Linter

from django.shortcuts import ( render, redirect, reverse, HttpResponse, get_object_or_404) from django.contrib import messages from products.models import Product def view_bag(request): """ A view that renders the bag contents page """ return render(request, 'bag/bag.html') def add_to_bag(request, item_id): """ Add a quantity of the specified product to the shopping bag """ # use products for messages product = get_object_or_404(Product, pk=item_id) quantity = int(request.POST.get('quantity')) redirect_url = request.POST.get('redirect_url') # while in the session, find the bag or create one bag = request.session.get('bag', {}) # add item into the bag or update the quantity if it already exists if item_id in list(bag.keys()): bag[item_id] += quantity messages.success( request, f'Updated {product.name} quantity to {bag[item_id]}') else: bag[item_id] = quantity messages.success(request, f'Added {product.name} to\ your shopping bag.') # overwrite the variable with the updated version request.session['bag'] = bag return redirect(redirect_url) def adjust_bag(request, item_id): """ Adjust quantity of the specified product to the specified amount """ product = get_object_or_404(Product, pk=item_id) quantity = int(request.POST.get('quantity')) # while in the session, find the bag or create one bag = request.session.get('bag', {}) # adjust the quantity if quantity > 0: bag[item_id] = quantity messages.success( request, f'Updated {product.name} quantity to {bag[item_id]}') else: bag.pop(item_id) messages.success( request, f'Product {product.name} has been removed\ from your shopping bag.') # overwrite the variable with the updated version request.session['bag'] = bag return redirect(reverse('view_bag')) def remove_from_bag(request, item_id): """ Remove the item from the shopping bag """ try: product = get_object_or_404(Product, pk=item_id) # while in the session, find the bag or create one bag = request.session.get('bag', {}) bag.pop(item_id) messages.success( request, f'Product {product.name} has been\ removed from your shopping bag.') # overwrite the variable with the updated version request.session['bag'] = bag return HttpResponse(status=200) except Exception as e: messages.error(request, f'Error removing item: {e}') return HttpResponse(status=500)