Exercises, examples and other material relating to training module Y307. This module is presented on Private Courses and Specially Run Courses only

Flask is a microframework for Python based on Werkzeug, Jinja 2 and good intentions. Running as a server, requests are routed via Werkzeug and pages generated (templated) through Jinja, providing a toolset to allow Python applications to be run on a web server / accessed via a browser without tedious coding, and leading to a fast development cycle.

Articles and tips on this subject		updated
4540	Unittest of a Flask application including forms Moving on from the single file "Hello Flask Test World" at [here], I've now uploaded an example that takes a Flask application including a form - it's [here] and based on our earlier form demo and runs it through unit test [here]. It runs with all tests passing:   WomanWithCat:flask grahamellis$ ...	2015-10-15
4538	Flask and unittest - hello web app test world Flask comes with a test client that you can use within unittest - I've put together a really short test of "hello world" [here]. The test example is ugly with the Flask application within the test harness, and should be improved by the importing of the appication to be tested. ...	2015-10-15 (short)
4534	Flask - complete MVC site to navigate around a data set A full demonstration from today - Flask Model, View and Controller. There's an index page listing links to all UK railway stations, and individual pages (via a 3 letter code URL) for each station. Here's the log of a session: and some of the pages in that session:     The main router ...	2015-10-13
4533	Sessions in flask Sessions are available in flask through the session object which can be treated as a python dict. There's an example which srores anyone filling in the "Hello" page on our signin form [here] and the template associated wit it is [here].       ...	2015-10-13
4532	Flask - first forms and responses with wtforms Using Flask, the wtforms module lets you set up your own forms - example [here] with the jinja template [here]. This example sets the for up, but does not handle reponses - indeed, a form submitted back will generate an error 405 and I have used this opportunity to use the app.errorhandler decorator ...	2015-10-13
4531	Jinja2 - Flask templating So far, we've only done simple inserts in our template - but there may be a requirement to do more - for example to insert a whole table of values. And this requires programatic elements in our template. Whilst it would be nice if we could simply include Python code in our template (Like Ruby on Rails ...	2015-10-11
4530	Requests in Flask Your request object contains many fields of information - you can access the query string and the headers as well as individual parameters entered into forms using the GET or the POST methods, or both. There are various layers of dispatch of requests (we can come back to these later) - just look at the ...	2015-10-11
4529	Flask - calling in the templating engine In previous steps, we have set up flask [here] and done some routing [here]. Let's now define our view. Our view is in HTML (and with style and lots of other stuff later) and the template will be produced by an HTML expert and graphic artist, and not by a programmer. It will be in a separate place ...	2015-10-11
4528	Routing in Flask Having got "hello world" working on your server in Flask (see [here] if you haven't!), you'll want to add further routes for other URLs - and indeed you'll want those routes to contain match markers so you can set up whole families of URLs. Our first example included:   @app.route("/")   def ...	2015-10-11
4527	Hello Flask world / Python web micro framework Flask is a microframework for web appliactions - in other words, it provides the structure for you to write web based applications on your server in Python without the need to get involved with detailed coding common to most applications - allyou need to is to take the framework provided and fill in ...	2015-10-11

allstations.html	jinja2 MVC inner template - station index page
astation.html	jinja2 MVC inner template - iindividual station page
base.html	base html - supertemplate - for rrt
basestation.html	jinja2 MVC - common outer template
features.html	features of jinja2 for rrt demo
first	Hello Flask World
firstform.html	Form - Jinja2
flask_app_test	Running Flask unittest with form and POST method
flask_test	Running Flask with template in unittest
fltest	Running Flask in unittest
person.html	Template for "third" flask example
requestresponse.html	template for request / response demo
rrc	Flask with request - response cycle
rrt	Flask - Jinja 2 introduction
rrw	Flask first form
rrx	Flask - form that picks up answer
rrx.py	Flask form demo / tuned to also work under unittest
rry	Flask - form that stores answers in sessions
rstats2014.xyz	data for stations.py demo
second	Flask with routing
secondform.html	Form and response - Jinja2
station_model.py	model - first flask MVC demo
stations.py	Flask Station Navigator - Router and controller for MVC demo
third	Flask with routing and templates
thirdform.html	template including session report