Front End Developers: Pyjamas

pyjamas Great... yet another web development framework

What is Pyjamas?
A Python framework for writing web front end

What is Pyjamas?
What?!

What is Pyjamas?
You don't even need Javascript, write everything in Python

What is Pyjamas?
You don't even need Javascript, write everything in Python
It will automatically convert your code to Javascript (and even take care of cross-browser issues)

Why Python?

Why Python?
Not that different from Javascript

Why Python?
Not that different from Javascript
Very clean syntax
Javascript Python && and || or ! not { } ; var temp=a;a=b;b=temp; a, b = b, a if(1<a && a<5) { if 1<a<5:

Why Python? (cont.)
Only one way to do things (usually)

Why Python? (cont.)
Already a very popular backend language

Why Python? (cont.)
Makes JS debugging feel like FORTRAN

Why Python? (cont.)
Makes JS debugging feel like FORTRAN
Customary Hello World example: print ” Hello World ”

Why Python? (cont.) Sorting a list:

Why Python? (cont.) function bubbleSort(items) { var x, y, holder; // The Bubble Sort method for (x = 0 ; x < items.length; x++) { for (y = 0 ; y < (items.length- 1 ); y++) { if (items[y] > items [ y + 1 ] ) { holder = items [ y + 1 ] ; items [ y + 1 ] = items [ y ] ; items [ y ] = holder; } } } def bubbleSort(items): # The Bubble Sort method for x in range ( len ( items )): for y in range ( len ( items )- 1 ): if items [ y ] > items [ y + 1 ]: items [ y ] , items [ y + 1 ] = items [ y + 1 ] , items [ y ] Javascript Python

Why Python? (cont.) Javascript Python Better way of sorting it: items.sort() items.sort()

What can Pyjamas do?

Anything JS or Python can (in theory)

Manipulate the DOM

Manipulate the DOM
Coexist with other JS on same page

Manipulate the DOM
Coexist with other JS on same page
It's a Python version of GWT

Who uses it?

Who uses it?
pyjs.org
pyjamas

Who uses it?
pyjs.org
grafpad.com
pyjamas

Who uses it?
pyjs.org
grafpad.com
my web app pyjamas

Who uses it?
pyjs.org
grafpad.com
gbsware.com
my web app pyjamas

Questions? Feel free to contact me (questions, support, web development): [email_address] @ATsepkov @Pyjeon Pyjeon Software LLC

Front End Developers: Pyjamas

by atsepkov

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