用Django打造成功网络应用:《Django By Example》指南

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"Django by Example" 是一本由 Antonio Melé 所著的综合文档,它提供了一个详实的指南,帮助读者创建自己的成功网络应用程序,特别是利用 Django 这一强大的开源 web 框架。Django 是一个基于 Python 的高级 Web 开发框架,以其简洁的语法、强大的 ORM(对象关系映射)系统和对 RESTful 设计原则的支持而闻名。这本书适合于初级到中级的开发者,无论他们是否有 Web 开发经验,都能从中学习和实践。 该书的主要内容涵盖了 Django 的基础架构,包括设置开发环境、模型设计、视图和模板的创建、URL 路由、表单处理、权限管理以及如何构建可扩展的 Web 应用。书中不仅教授理论知识,还提供了大量的实例和实战项目,让读者能够通过实际操作深入理解框架的工作原理。 版权方面,这本书享有2015年 Packt Publishing 的版权,所有内容未经事先书面许可不得复制、存储或以任何形式传输。尽管作者和出版社已尽力确保信息的准确性,但本书提供的内容不带任何形式的保证,无论是明示还是暗示,都不承担因本书引起的直接或间接损害的责任。 出版日期为2015年11月,生产参考号为1261115。"Django by Example" 是由 Packt Publishing 出版,这是一家专注于技术书籍的全球出版商,他们通常会确保书中提及的所有公司和产品的商标信息得到正确使用,尽管不能保证这些信息的绝对准确性。 通过阅读这本书,读者将不仅提升编程技能,还能了解到如何有效地利用 Django 构建高效、安全且用户体验良好的 web 应用程序,从而在 IT 行业建立自己的专业声誉。对于想要在现代 web 开发领域取得成功的人来说,这是一本不可多得的实用教程。

Traceback (most recent call last): File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\pydevconsole.py", line 364, in runcode coro = func() File "<input>", line 1, in <module> File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import module = self._system_import(name, *args, **kwargs) File "D:\PythonProject\Django_dianshang\dianshang\utils\loaddata.py", line 2, in <module> from dianshang.goods.models import * File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import module = self._system_import(name, *args, **kwargs) File "D:\PythonProject\Django_dianshang\dianshang\goods\models.py", line 7, in <module> class Category(models.Model): File "D:\anaconda3\envs\djangopro\lib\site-packages\django\db\models\base.py", line 129, in __new__ app_config = apps.get_containing_app_config(module) File "D:\anaconda3\envs\djangopro\lib\site-packages\django\apps\registry.py", line 260, in get_containing_app_config self.check_apps_ready() File "D:\anaconda3\envs\djangopro\lib\site-packages\django\apps\registry.py", line 137, in check_apps_ready settings.INSTALLED_APPS File "D:\anaconda3\envs\djangopro\lib\site-packages\django\conf\__init__.py", line 102, in __getattr__ self._setup(name) File "D:\anaconda3\envs\djangopro\lib\site-packages\django\conf\__init__.py", line 82, in _setup raise ImproperlyConfigured( django.core.exceptions.ImproperlyConfigured: Requested setting INSTALLED_APPS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

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Traceback (most recent call last): File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\pydevconsole.py", line 364, in runcode coro = func() File "<input>", line 1, in <module> File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import module = self._system_import(name, *args, **kwargs) File "D:\PythonProject\Django_dianshang\utils\loaddata.py", line 2, in <module> from goods.models import * File "D:\PyCharm Community Edition 2022.3.3\plugins\python-ce\helpers\pydev\_pydev_bundle\pydev_import_hook.py", line 21, in do_import module = self._system_import(name, *args, **kwargs) File "D:\PythonProject\Django_dianshang\goods\models.py", line 7, in <module> class Category(models.Model): File "D:\anaconda3\envs\djangopro\lib\site-packages\django\db\models\base.py", line 129, in __new__ app_config = apps.get_containing_app_config(module) File "D:\anaconda3\envs\djangopro\lib\site-packages\django\apps\registry.py", line 260, in get_containing_app_config self.check_apps_ready() File "D:\anaconda3\envs\djangopro\lib\site-packages\django\apps\registry.py", line 137, in check_apps_ready settings.INSTALLED_APPS File "D:\anaconda3\envs\djangopro\lib\site-packages\django\conf\__init__.py", line 102, in __getattr__ self._setup(name) File "D:\anaconda3\envs\djangopro\lib\site-packages\django\conf\__init__.py", line 82, in _setup raise ImproperlyConfigured( django.core.exceptions.ImproperlyConfigured: Requested setting INSTALLED_APPS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

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