List of Form Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Callback when form item changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4 Upload Files 19 5 创建菜单 21 6 布局和创建详情页 23 7 带参数的页面 29 8 使用数据表格 31 8.1 为表准备数据 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Python AdminUI 使用 Python 制作专业的 Web 前端界面 本 Python 包适用于想要制作简单的前端界面，但却不想处理 HTML, CSS, React, Angular, Webpack 和其 他 Javascript 前端代码的情况。你可以直接用 Python 完成网页、表单、图标和仪表盘界面。 一些应用场景：数据项目；运维工具和脚本；简单 IT 系统和

can export the FLASK_ENV environment variable and set it to development before running the server: 8 Chapter 1. User’s Guide Flask Documentation (1.1.x), Release 1.1.4 $ export FLASK_ENV=development Flask(__name__) # Set the secret key to some random bytes. Keep this really secret! app.secret_key = b'_5#y2L"F4Q8z\n\xec]/' @app.route('/') def index(): if 'username' in session: return 'Logged in as %s' % esca value for Flask.secret_key (or SECRET_KEY): $ python -c 'import os; print(os.urandom(16))' b'_5#y2L"F4Q8z\n\xec]/' 1.4. Quickstart 19 Flask Documentation (1.1.x), Release 1.1.4 A note on cookie-based sessions:

Flask(__name__) # Set the secret key to some random bytes. Keep this really secret! app.secret_key = b'_5#y2L"F4Q8z\n\xec]/' @app.route('/') def index(): if 'username' in session: return 'Logged in as %s' value for Flask.secret_key (or SECRET_KEY): $ python -c 'import os; print(os.urandom(16))' b'_5#y2L"F4Q8z\n\xec]/' A note on cookie-based sessions: Flask will take the values you put into the session object with current_app.open_resource('schema.sql') as f: db.executescript(f.read().decode('utf8')) @click.command('init-db') @with_appcontext def init_db_command(): """Clear the existing data

distributions of Django . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1427 8 Glossary 1429 9 Release notes 1431 9.1 Final releases . . . . . . . . . . . . . . . . . . . . . . Smith> >>> Reporter.objects.get(id=2) Traceback (most recent call last): ... (continues on next page) 8 Chapter 2. Getting started Django Documentation, Release 1.11.30.dev20200305075726 (continued from to it. Many Django apps also provide their documentation online through sites like readthedocs.org. 8. Try building your package with python setup.py sdist (run from inside django-polls). This cre- ates

distributions of Django . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1393 8 Glossary 1395 9 Release notes 1397 9.1 Final releases . . . . . . . . . . . . . . . . . . . . . . get(id=2) Traceback (most recent call last): ... DoesNotExist: Reporter matching query does not exist. 8 Chapter 2. Getting started Django Documentation, Release 1.10.9.dev20171123183751 # Create an article to it. Many Django apps also provide their documentation online through sites like readthedocs.org. 8. Try building your package with python setup.py sdist (run from inside django-polls). This cre- ates

to it. Many Django apps also provide their documentation online through sites like readthedocs.org. 8. Try building your package with python setup.py sdist (run from inside django-polls). This creates Consequently, we’ll be using the revision of Django just prior to that, commit 4ccfc4439a7add24f8db4ef3960d02ef8ae09887. Navigate into Django’s root directory (that’s the one that contains django, docs, tests revision of Django that we’ll be using in the tutorial below: $ git checkout 4ccfc4439a7add24f8db4ef3960d02ef8ae09887 Running Django’s test suite for the first time When contributing to Django it’s very

to it. Many Django apps also provide their documentation online through sites like readthedocs.org. 8. Try building your package with python setup.py sdist (run from inside django-polls). This creates Consequently, we’ll be using the revision of Django just prior to that, commit 4ccfc4439a7add24f8db4ef3960d02ef8ae09887. Navigate into Django’s root directory (that’s the one that contains django, docs, tests revision of Django that we’ll be using in the tutorial below: $ git checkout 4ccfc4439a7add24f8db4ef3960d02ef8ae09887 Running Django’s test suite for the first time When contributing to Django it’s very

distributions of Django . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1427 8 Glossary 1429 9 Release notes 1431 9.1 Final releases . . . . . . . . . . . . . . . . . . . . . . >>> Reporter.objects.get(full_name__contains='mith') (continues on next page) 8 Chapter 2. Getting started Django Documentation, Release 2.1.16.dev20191202082911 (continued from write the first view. Open the file polls/views.py and put the following Python code in it: Listing 8: polls/views.py from django.http import HttpResponse def index(request): return HttpResponse("Hello