Flask vs Django

David Baumgold // @singingwol!oy

I don’t need to CROSS THE ALPS I just need
a SIMPLE WEBSITE! Sheesh.

EXTENSIONS! EXTENSIONS!

EXTENSIONS! EXTENSIONS! Sorry, getting ahead of myself there...

SIMPLE Flask gives you three main things: URL Routing Templates
Error handling & debugger mysite.com/foo goes to foo_view() powered by Jinja2! is that four things? OK, ﬁne, four main things.

Example Time!

from flask import Flask app = Flask(__name__) @app.route("/") def hello():
return "Hello World!" if __name__ == "__main__": app.run() $ pip install Flask $ python hello.py * Running on http://localhost:5000/ A full Flask application: Running it:

from flask import render_template @app.route('/hello/') @app.route('/hello/<name>') def hello(name=None): return render_template('hello.html',
name=name) <!doctype html> <title>Hello from Flask</title> {% if name %} <h1>Hello {{ name }}!</h1> {% else %} <h1>Hello World!</h1> {% endif %} Templates!

Demo Time!

HOORAY! NOW I CAN SHOW OFF MY CAT PICTURES! But
now I want to add a rating system and a guestbook! I CAN HAZ DATABASE?

EXTENSIONS! EXTENSIONS!

NEED SOMETHING WEBSCALE? or just use the database's Python module
directly

WHAT ELSE YA GOT

Admin interface? Check. Flask-Admin Form management? Check.

Caching? Email? OAuth? REST APIs? Markdown? I wrote that last
one!

OTHER COOL THINGS (that I don't really have time to
talk about right now) thread-local response objects session management blueprints redirect() and abort() functions real WSGI support static ﬁle optimizations unit test support message ﬂashing THESE ARE ALL BUILT-IN

1900 LINES of Python code 250+ PAGES of documentation Flask
is documented just as well as Django, and that documentation is better organized

WRAP-UP DJANGO is LARGE and MONOLITHIC FLASK is SMALL and
EXTENSIBLE difﬁcult to change/replace built-in components steep learning curve little ﬂexibility add components/complexity as necessary learn as you go write your app the way you want

ANY QUESTIONS? ﬂask.pocoo.org David Baumgold // @singingwol!oy

Flask vs Django

Flask vs Django

David Baumgold

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David Baumgold // @singingwol!oy

I don’t need to CROSS THE ALPS I just need

EXTENSIONS! EXTENSIONS!

EXTENSIONS! EXTENSIONS! Sorry, getting ahead of myself there...

SIMPLE Flask gives you three main things: URL Routing Templates

Example Time!

from flask import Flask app = Flask(name) @app.route("/") def hello():

from flask import render_template @app.route('/hello/') @app.route('/hello/<name>') def hello(name=None): return render_template('hello.html',

Demo Time!

HOORAY! NOW I CAN SHOW OFF MY CAT PICTURES! But

EXTENSIONS! EXTENSIONS!

NEED SOMETHING WEBSCALE? or just use the database's Python module

WHAT ELSE YA GOT

Admin interface? Check. Flask-Admin Form management? Check.

Caching? Email? OAuth? REST APIs? Markdown? I wrote that last

OTHER COOL THINGS (that I don't really have time to

1900 LINES of Python code 250+ PAGES of documentation Flask

WRAP-UP DJANGO is LARGE and MONOLITHIC FLASK is SMALL and

ANY QUESTIONS? ﬂask.pocoo.org David Baumgold // @singingwol!oy