Python [TechWeek #1 WebDev Day]

Presentation by Oleg Shidlovsky at TeamsPark TechWeek.

Transcript

1. Шидловский Олег Doist inc. Data science and Web development.
3. Python everywhere
4. python for every language
5. Jython Example from java.io import DataInputStream dp = DataInputStream(io) dp.skipBytes(1000) print dp.readByte() print dp.readShort() print dp.readInt()
6. Python for unix
7. Desktop GUIs Python Qt Python Qt Python GTK WxPython
8. Scientific and Numeric
9. Mobile development Kivy
10. from kivy.app import App from kivy.uix.button import Button class TestApp(App): def build(self): return Button(text='Hello World') TestApp().run() Kivy
11. Machine learning and statistics
12. scikit-learn
13. Game development pyglet
14. Video games
15. Network framework Twisted Used in: Mathematica MATLAB NASA Ubuntu One Wargaming
16. WEB Falcon
17. The web framework for perfectionists with deadlines. Ridiculously fast. Django was designed to help developers take applications from concept to completion as quickly as possible. Reassuringly secure. Django takes security seriously and helps developers avoid many common security mistakes. Exceedingly scalable. Some of the busiest sites on the Web leverage Django’s ability to quickly and flexibly scale.
18. Why Django?
21. Who use django
22. $ django-admin.py startproject mysite $ python manage.py migrate $ python manage.py runserver 3 steps to conquer the world
23. my_project my_app_1 models.py views.py urls.py my_app_2 models.py views.py urls.py templates index.html statics style.css manage.py settings.py django file architecture
24. Django MVC
25. Django Features - Template generator - ORM - Signals - Unittest - Cache - EmailBackend - Migrations - Compatibility with celery - Forms - User Authentication
26. Template inheritance
27. Django ORM Object-relational Mapper class Blog(models.Model): headline = models.CharField(max_length=255) body_text = models.TextField() pub_date = models.DateField() authors = models.ManyToManyField(Author) b = Blog(name='Beatles Blog', tagline='All the latest Beatles news.') b.save() Blog.objects.filter(pub_date__year=2006) Blog.objects.filter(headline__startswith="What") Blog.objects.order_by('headline')
28. Django admin panel
30. Django Packages 2700 packages and counting!
31. Testing Django
32. End result Happy developers writing better code faster
33. Falcon
34. Flask example from flask import Flask app = Flask(__name__) @app.route('/') def hello_world(): return 'Hello World!' if __name__ == '__main__': app.run()
35. Python web application framework
36. The Pylons Project was founded by the people behind the Pylons web framework to develop web application framework technology in Python. Rather than focusing on a single web framework, the Pylons Project will develop a collection of related technologies. The first package is the Pyramid web framework.
37. Celery Distributed Task Queue from celery import Celery app = Celery('tasks', broker='amqp://guest@localhost//') @app.task def add(x, y): return x + y Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.
38. Speed https://www.techempower.com/benchmarks/ Framework Best performance cpoll_cppsp 1,057,793 Gemini 914,749 Go 348,55 Nodejs 228,887 Wsgi 220,602 php 180,147 Falcon 171,773 http-listener 108,543 Tornado 87,708 Flask 60,065 Django 12,082 rails-ruby 6,09
40. Join to community https://www.facebook.com/MinskPythonMeetu p