Advanced Calculator

I'll help you create an advanced calculator with Django that has a stylish UI and supports both mouse and keyboard input. Here's the setup: Django==4.2.7 django-widget-tweaks==1.5.0 from pathlib import Path BASE_DIR = Path(__file__).resolve().parent.parent SECRET_KEY = 'django-insecure-your-secret-key-here' DEBUG = True ALLOWED_HOSTS = [] INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'widget_tweaks', 'calculator', ] MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ] ROOT_URLCONF = 'calculator_project.urls' TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [], 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ] WSGI_APPLICATION = 'calculator_project.wsgi.application' DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': BASE_DIR / 'db.sqlite3', } } AUTH_PASSWORD_VALIDATORS = [ { 'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', }, { 'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', }, { 'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', }, { 'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', }, ] LANGUAGE_CODE = 'en-us' TIME_ZONE = 'UTC' USE_I18N = True USE_TZ = True STATIC_URL = 'static/' DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField' from django.contrib import admin from django.urls import path from calculator import views urlpatterns = [ path('admin/', admin.site.urls), path('', views.calculator, name='calculator'), ] import os from django.core.wsgi import get_wsgi_application os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'calculator_project.settings') application = get_wsgi_application() from django.shortcuts import render from django.http import JsonResponse def calculator(request): if request.method == 'POST': expression = request.POST.get('expression', '') try: result = str(eval(expression)) except: result = 'Error' return JsonResponse({'result': result}) return render(request, 'calculator/calculator.html') Advanced Calculator

from django.apps import AppConfig class CalculatorConfig(AppConfig): default_auto_field = 'django.db.models.BigAutoField' name = 'calculator' from django.db import models from django.contrib import admin #!/usr/bin/env python import os import sys def main(): os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'calculator_project.settings') try: from django.core.management import execute_from_command_line except ImportError as exc: raise ImportError( "Couldn't import Django. Are you sure it's installed and " "available on your PYTHONPATH environment variable? Did you " "forget to activate a virtual environment?" ) from exc execute_from_command_line(sys.argv) if __name__ == '__main__': main() To run the calculator: 1. Install dependencies: `pip install -r requirements.txt` 2. Run migrations: `python manage.py migrate` 3. Start the server: `python manage.py runserver` The calculator features: - Stylish gradient background and modern UI - Full keyboard support (numbers, operators, Enter, Backspace, Escape) - Real-time expression display - Error handling - Responsive design - Both mouse and keyboard input