werkzeug

Redirecting an old URL to a new one with Flask micro-framework

自闭症网瘾萝莉.ら 提交于 2019-12-07 03:37:30
问题 I'm making a new website to replace a current one, using Flask micro-framework (based on Werkzeug) which uses Python (2.6 in my case). The core functionality and many pages are the same. However by using Flask many of the previous URLs are different to the old ones. I need a way to somehow store the each of the old URLs and the new URL, so that if a user types in an old URL they are simply forwarded to the new URL and everything works fine for them. Does anybody know if this is possible in

Domain routing in Flask

半城伤御伤魂 提交于 2019-12-06 13:01:43
问题 I wanted to redirect users from test1.domain.com to test2.domain.com. I tried 'host_matching' in url_map along with 'host' in url_rule. It doesn't seem to work, shows 404 error.For example, on visiting 'localhost.com:5000' it should go to 'test.localhost.com:5000'. from flask import Flask, url_for, redirect app = Flask(__name__) app.url_map.host_matching = True @app.route("/") def hello1(): #return "Hello @ example1!" return redirect(url_for('hello2')) @app.route("/test/", host="test

1Flask框架引子

情到浓时终转凉″ 提交于 2019-12-06 06:42:25
WSGI实现信息传输 from wsgiref.simple_server import make_server def mya(environ, start_response): print(environ) start_response('200 OK', [('Content-Type', 'text/html')]) if environ.get('PATH_INFO') == '/index': with open('index.html','rb') as f: data=f.read() elif environ.get('PATH_INFO') == '/login': with open('login.html', 'rb') as f: data = f.read() else: data=b'<h1>Hello, web!</h1>' return [data] if __name__ == '__main__': myserver = make_server('', 8011, mya) print('监听8011') myserver.serve_forever() werkzeug实现web搭建 from werkzeug.wrappers import Request, Response @Request.application def hello

Can I call the werkzeug debugger in Django without needing to raise an exception or using assertions?

余生长醉 提交于 2019-12-06 06:32:44
I'm currently using Werkzeug together with django-extensions and I'm able to call the werkzeug debugger by raising an exception or making a false assertion. Is it possible to just set a breakpoint for werkzeug like import pdb; pdb.set_trace() does? If you are using Apache/mod_wsgi, all you need to do is modify your .wsgi file to include: from werkzeug.debug import DebuggedApplication and application = get_wsgi_application() application = DebuggedApplication(application, evalex=True) Then you can access the python shell at "example.com/console " (Note the space after console!) 来源: https:/

cleaning up my SQLAlchemy operations (reducing repetition)

可紊 提交于 2019-12-06 05:24:15
I have some server side processing of some data (client-side library = jQuery DataTables ) I am using POST as my ajax method. In my Flask webapp, I can access the POST data with request.values The data type / structure of request.values is werkzeug.datastructures.CombinedMultiDict If the user wants to sort a column, the request contains a key called action with a value of filter (note the below printouts are obtained with for v in request.values: print v, request.values[v] ) ... columns[7][data] role columns[8][search][regex] false action filter columns[10][name] columns[3][search][value] ...

Context processor using Werkzeug and Jinja2

喜欢而已 提交于 2019-12-06 04:42:02
问题 My application is running on App Engine and is implemented using Werkzeug and Jinja2. I'd like to have something functionally equivalent of Django's own context processor: a callable that takes a request and adds something to the template context. I already have a "context processors" that add something to the template context, but how do I get this request part working? I implemented context processors as a callables that just return a dictionary that later is used to update context. For

pipenv使用学习

半腔热情 提交于 2019-12-06 00:07:46
参考https://realpython.com/pipenv-guide/#package-distribution Pipenv: A Guide to the New Python Packaging Tool Pipenv是Python的一个打包工具,它使用pip、virtualenv和旧的requirements.txt解决了与典型工作流相关的一些常见问题。 除了解决一些常见问题之外,它还将开发过程合并并简化为单个命令行工具。 本指南将详细讨论Pipenv解决了哪些问题,以及如何管理你与Pipenv的Python依赖关系。此外,还将介绍Pipenv如何适应以前的包分发方法。 Problems that Pipenv Solves 为了理解Pipenv的好处,了解当前Python中的打包和依赖项管理方法是很重要的。 让我们从处理第三方包的典型情况开始。然后,我们将构建部署完整Python应用程序的方法。 Dependency Management with requirements.txt 假设您正在处理一个使用类似于flask的第三方包的Python项目。您需要指定该需求,以便其他开发人员和自动化系统可以运行您的应用程序。 所以你决定在requirements.txt文件中包含flask依赖,requirements.txt如下: flask 很好,一切都在本地运行良好

url structure and form posts with Flask

送分小仙女□ 提交于 2019-12-05 10:44:58
In Flask you write the route above the method declaration like so: @app.route('/search/<location>/') def search(): return render_template('search.html') However in HTML as form will post to the url in this fashion www.myapp.com/search?location=paris the latter seems to return a 404 from the application where www.myapp.com/search/london will return as expected. I'm sure that there is a simple piece of the puzzle that i'm not getting, but surely the routing engine will consider the query string parameters for meeting the rules requirements. If not what is the optimal solution for this scenario

Flask源码分析01:框架简介

梦想的初衷 提交于 2019-12-05 09:09:35
1.Flask是怎么样的框架 Flask是一个使用 Python 编写的轻量级 Web 应用框架。其 WSGI(Python Web Server Gateway Interface)工具箱采用 Werkzeug , 模板引擎 则使用 Jinja2 。Flask使用 BSD 授权。 Flask也被称为 “microframework” ,因为它使用简单的核心,用 extension 增加其他功能。Flask没有默认使用的数据库、窗体验证工具 中文参考文档地址 python 语言 web 框架很多:Django、Tornado、webpy、bottle……,flask 的特点是 简单可扩展 。简单有几个方面,比如它只实现 web 框架最核心的功能,保持功能的简洁;还有一个就是代码量少,核心代码 app.py 文件只有 2k+ 行。可扩展就是允许 第三方插件 来扩充功能,比如数据库可以使用 Flask-SQLAlchemy ,缓存可以使用 Flask-Cache 等等。 下面这段代码是 flask 官方文档给出的 hello world 版本的 flask 应用: from flask import Flask app = Flask(__name__) @app.route('/') def hello_world(): return 'Hello, World!' if _

Werkzeug之Local源码解析

孤者浪人 提交于 2019-12-05 08:45:35
Werkzeug之Local源码解析 原博客地址 http://liuyajing.coding.me/blogs/python/2018/werkzeug-local/ 一、引入 最近在阅读 Flask 的源码,遇到三个概念:Local 、 LocalStack 和 LocalProxy ,本文主要就针对 Local 概念及其源码进行原理剖析。 二、Local Local 是一个类,源码位置:site-packages/werkzeug/local.py 在模块的开头,有以下代码: # 由于每个线程都有自己的greenlet,我们可以将它们用作上下文的标识符。 # 如果greenlet不可用,我们将根据它的位置回退到当前的线程标识。 try: from greenlet import getcurrent as get_ident except ImportError: try: from thread import get_ident except ImportError: from _thread import get_ident 1. 定义 class Local(object): # 定义此类允许绑定的属性名称 tuple __slots__ = ('__storage__', '__ident_func__') 2. init def __init__(self):