PyJS: write your JavaScript-powered web applications entirely in Python

Post by scotty79 » Fri, Aug 07, 2015, 10:54 PM UTC

task_queue wrote: post #21

scotty79 wrote: post #18

Earlier quoted context omitted.

CoffeeScript feels for me like more flexible Python. Only thing I was missing until ES6 were generators. I simply love how I can wrap line from csv file in custom CoffeeScript object just by declaring class like: class Entry constructor: ([@id, @description, @amount]) -> and doing new Entry(line.split(','))

An equivalent in Python is >>> Entry = namedtuple("Entry", "id description amount") >>> Entry(*line.split(',')) Entry(id='1', description='an entry', amount='99')

Post by task_queue » Sat, Aug 08, 2015, 12:46 AM UTC

scotty79 wrote: post #32

task_queue wrote: post #21

Earlier quoted context omitted.

An equivalent in Python is >>> Entry = namedtuple("Entry", "id description amount") >>> Entry(*line.split(',')) Entry(id='1', description='an entry', amount='99')

Neat, but can I add few methods to my Entry touple? Can it inherit from something else? Can something else inherit from Entry? Won't named touple have some of its own methods that my methods could have collided with?

Post by cowpewter » Sat, Aug 08, 2015, 4:45 AM UTC

jfoster wrote: post #35

ralmidani wrote: post #6

Personally, I like CoffeeScript syntax combined with JavaScript's "a hash is an object" better than Python's object syntax (too much unnecessary use of "self" and class method decorators could be better achieved with the @ sigil). What I would really find interesting is a CoffeeScript-like language that can compile to both Python and JS (with snake_case for Python and camelCase for JS). Couple it with a JS client-sid…

I like your idea of a language that can compile to Python or JavaScript. I wish there were a straightforward & proven business model that could be applied to programming languages. I have a feeling we would see much more interesting development in this area if there were bigger rewards for coming up with something better than the status quo.

Post by sebastianavina » Sat, Aug 08, 2015, 5:18 AM UTC

d_luaz wrote: post #37

ralmidani wrote: post #6

Personally, I like CoffeeScript syntax combined with JavaScript's "a hash is an object" better than Python's object syntax (too much unnecessary use of "self" and class method decorators could be better achieved with the @ sigil). What I would really find interesting is a CoffeeScript-like language that can compile to both Python and JS (with snake_case for Python and camelCase for JS). Couple it with a JS client-sid…

I do have reservation about Python to be the language to be cross-compiled to anything, then there is NodeJS on server side as well, so what the hell :( Whenever a new stack popup, I always wonder 1) who us it 2) why they use it 3) what they use it for Hopefully more people share their stacks on http://www.stackbus.com/ (FYI, I build it) so that it help others to decide better.

Post by scotty79 » Sat, Aug 08, 2015, 9:52 AM UTC

chrismorgan wrote: post #33

scotty79 wrote: post #32

Earlier quoted context omitted.

Neat, but can I add few methods to my Entry touple? Can it inherit from something else? Can something else inherit from Entry? Won't named touple have some of its own methods that my methods could have collided with?

You can use a `namedtuple` class as a base class, e.g. like this: class Entry(namedtuple('Entry', ('id', 'description', 'amount')), SomethingElse): def more_methods(self): pass