wronk

Overview of Python Virtual Environments

This guide is targetted at intermediate or expert users who want low-level control over their Python environments.

When you're working on multiple coding projects, you might want a couple different version of Python and/or modules installed. This helps keep each workflow in its own sandbox instead of trying to juggle multiple projects (each with different dependencies) on your system's version of Python. The guide here covers one way to handle multiple Python versions and Python environments on your own (i.e., without a package manager like conda). See the Using the workflow section to view the end result.

h/t @sharkinsspatial for linking me to the perfect cartoon

yoshuawuyts

#!/usr/bin/env node

const cliclopts = require('cliclopts')
const minimist = require('minimist')
const fs = require('fs')

const quickStub = require('./')

const opts = cliclopts([
  {

max-mapper

Disclaimer: This is an unofficial post by a random person from the community. I am not an official representative of io.js. Want to ask a question? open an issue on the node-forward discussions repo

io.js - what you need to know

• io is a fork of node v0.12 (the next stable version of node.js, currently unreleased)
• io.js will be totally compatible with node.js
• the people who created io.js are node core contributors who have different ideas on how to run the project
• it is not a zero-sum game. many core contributors will help maintain both node.js and io.js

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

kissane

Style Book

We're currently using the Chicago Manual of Style. It's imperfect, but it's better than the alternatives, so far.

Style Basics & Deviations From the Stylebook

• We don't wrap article titles within text in quotes, but we do link to them on first usage
• We don't italicize the names of publications in article text
• We don't cap "The" in publication titles in article text, but we do in Organization entries
• Commas and periods go inside closing quotation marks

max-mapper

pagelet

tries to provide a way to use NPM to distribute web components with as little abstraction as possible

• uses plain index.js, style.css, index.html etc
• works in multiple environments

example (intentionally verbose)

consider a module called 'simple-button':

cybear

Raspberry Pi general optimization

• Use a class 10 SD card for best speed. The USB bus can't come much higher than 30MB/s so you don't have to buy any extremely fast ones though. Not all cards are compatible, check the compatibility list: http://elinux.org/RPi_SD_cards
• Use the HardFloat version of Raspbian instead of the SoftFloat. HF has much faster floating point operations - however SF is required for running Java. So it's either Java or performance, like normal.
• The official Raspbian image gives low network speeds: http://elinux.org/RPi_Performance#NIC
• A graphics driver by Simon / teh_orph is using hardware acceleration for some instructions: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=28294 installation instructions: http://elinux.org/RPi_Xorg_rpi_Driver
• The firmware can be upgraded which gives, among other things, better GPU performance.

sroucheray

This utility has now its own repo https://github.com/sroucheray/requestAnimationFrameRate You can install it via npm or bower

globalmaptiles.py

#!/usr/bin/env python
###############################################################################
# $Id$
#
# Project:  GDAL2Tiles, Google Summer of Code 2007 & 2008
#           Global Map Tiles Classes
# Purpose:	Convert a raster into TMS tiles, create KML SuperOverlay EPSG:4326,
#			generate a simple HTML viewers based on Google Maps and OpenLayers
# Author:	Klokan Petr Pridal, klokan at klokan dot cz
# Web:		http://www.klokan.cz/projects/gdal2tiles/

jsvine

Tabletop.js is a fantastic, open-source JavaScript library that lets developers easily integrate data from Google Spreadsheets into their online projects. I've used it, even contributed a minor feature, and love it for prototyping. Non-programmers love being able to update a project via Google Spreadsheets' hyper-intuitive interface.

That said, I'm extraordinarily wary of using Tabletop in production. Instead, at the Wall Street Journal, we use a bit of middleware to "prune" our Google Spreadsheets-based data and then cache it on our own servers. A few brief reasons:

• Short-Term Reliability. With Tabletop, your project depends on Google not to rate-limit access to your spreadsheet. Google rate-limits access to their Spreadsheet API, though the thresholds aren't clear. If you're building an app you care about, you don't want to be i