#django

linuxuser9000: import re ....

or just str.replace

linuxuser9000: OK, now you ARE trolling.

maybe a little; seems like no other languages besides perl and sed come close to the awesomeness of regex operations

is there some sort of "django_lint" that will tell me "this syntax is deprecated, use that one"?

like I just looked up python::re and there's no s/// operation, you have to do re.method(params)

linuxuser9000: Perhaps.... but Perl and Sed suck at being web-frameworks =)

hahaha... fair enough

You'd be surprised at what Python CAN do though, even with regex.

Well I always hear people blathering on about how awesome it is. The only reason I want to learn it is to put it on my resume. That and Django. I already know other languages so I don't see what Python's good for. But this is borderline trolling, ahem.

I mean really constructors being called __init__() that's just gross

"And you think I know, I'll use regex! Now you have two problems."

linuxuser9000: lol get good

FunkyBob: Yeah if you don't actually know regex

sharktopus: help, I am so rekt

that's a quote from a Perlian, actually

get __struck__

get it? its a python pun

sharktopus: kek

the toppest

sharktopus: why do you use django>

i mean what level of answer are you looking for

sharktopus: an answer that explains why you use a web framework rather than writing straight html/javascript

sharktopus: please

it works well, is active and well maintained by a reasonable team, has a history of secure and sane defaults, is in a language that allows me to make good tradeoffs between speed quality and maintainability

hmmm

linuxuser9000: because we don't want to write the same code over and over and over for doing all those things every dynamic web site needs to do

we still write HTML.. we still write CSS and JavaScript...

well im not about to use javascript as my language of choice for server side work

but we have the framework to make the "do actual work" bit easier to develop

i need to do processing of various kinds, and having actual numerical types is very useful

nodejs!

show me how i can do some serious number crunching in js and i'll chuckle at how difficult it is

JS shouldn't be anyone's language of choice... yes, it has some neat features, and they've gone a long way with theor one good feature [closures].. but, honestly

compared to the python infrastructure that's available

linuxuser9000: nodejs is another web framework... so...

javascript supports all the arithmetic operations and has Math.whatever built in, what else do you need for "serious number crunching"?

except integer

linuxuser9000: 0.2 + 0.1

FunyBob: I wrote a chatroom in node.js following their tutorial, it was easy and worked

linuxuser9000: I wrote a chat room in Python on my own.. it was easy and still works

I'm pretty sure JavaScript doesn't truncate floats

does JS have decimals? or just floats?

Oh boy am I surrounded by computer scientists? Because I'm not one and I'm beginning to feel it

linuxuser9000: so how do i work with panel data in js? in python i can use pandas

sharktopus: I don't even know what panel data is

how do i work with large integers in js

there are libraries to do all of these for sure

how do you work with accurate real numbers in JS?

but js just aint the language to use if you have an option

Ok, I just followed the little "tiny webapp" example from http://www.jeffknupp.com/blog/2014/03/03/what-i... and it actually worked, it's just like node.js one file, make a server and it listens on a port. I'm super impressed

yes now improve and maintain it for 3 years

build a business

deal with changing requirements

changing teams

these are more python vs js issues and less django vs node issues

if "can write a hello world chat app" is your gold standard test for frameworks, you probably need some more experience with a variety of use cases to really weigh in meaningfully here

:)

what do you do when you need to optimize some critical path in your node.js server and the algorithms and data structures are all solid?

rewrite? ship to something faster and more specialized with protobufs or json?

python lets you take gradual steps to improve speed without necessitating a full rewrite or shipping to another process

im not a node guy so maybe there is a good answer, i really dont know

is the user object always added to the render context dict?

zsero: no, only when you use a RequestContext and have the auth Context Manager enabled [as it is by default]

is RequestContext the one used by “from django.shortcuts import render”?

yes

zsero: it's also used by pretty much all the CBV

[IIRC there's one template mixin that doesn't]

ok, I see. how can I see what other keys are proveded by default?

I’d prefer not to name my own keys like them

zsero: read the requestcontext docs

these ones? https://docs.djangoproject.com/en/1.7/ref/reque...

no

requestcontext and context are purely Template artifacts

FunkyBob: great, thanks.

Hi I've got a question. I've got some analysis code written in Mathematica that reads from a database, does some analysis and writes output to a DB and a django frontend for the whole thing. However, I'm trying to figure out how to integrate the two things - How to fire off the Mathematica analysis as new data comes in.

Any ideas on this?

sshack: that depends on how you can control mathematica

Frunkybob: Well, I can control it via regular process control, Do http calls, and a few other things.

Unfortunately mma doesn't have good message queue support or other typical methods for this sort of thing.

so are you after some sort of task queue?

Funkybob: Well, it seems that way, except it'll have to be something fairly simple. I'll have to implement the MMA side from scratch.

RQ is simple

A DB based task queue might work. MMA can grab the tasks, execute them and retire them. Could just do that in an endless loop.

RQ?

it's a simple job queue system

Taking a quick look Is the wire protocl documented somewhere?