Joseph Misiti josephmisiti

Topojson of Italy

Shapefile source: http://www.istat.it/it/archivio/24613

Convert shapefile to geojson, s_srs defines the input projection, t_srs defines the output projection to the EPSG code 4326 (http://spatialreference.org/ref/epsg/4326/) see also http://www.gdal.org/ogr2ogr.html

ogr2ogr -f GeoJSON -s_srs prov2011_g.prj -t_srs EPSG:4326 sub.json prov2011_g.shp

Idiomatic React Testing Patterns

Testing React components seems simple at first. Then you need to test something that isn't a pure interaction and things seem to break down. These 4 patterns should help you use a pattern that is repeatable and readable for the type of test you need.

Setup

I recommend doing all setup in the most functional way possible. If you can avoid it, don't set variables in a beforeEach. This will help ensure tests are isolated and make things a bit easier to reason about. I use a pattern

Comprehensions in Python the Jedi way

Beautiful is better than ugly. Explicit is better than implicit.

-- The Zen of Python

I frequently deal with collections of things in the programs I write. Collections of droids, jedis, planets, lightsabers, starfighters, etc. When programming in Python, these collections of things are usually represented as lists, sets and dictionaries. Oftentimes, what I want to do with collections is to transform them in various ways. Comprehensions is a powerful syntax for doing just that. I use them extensively, and it's one of the things that keep me coming back to Python. Let me show you a few examples of the incredible usefulness of comprehensions.

All of the tasks presented in the examples can be accomplished with the extensive standard library available in Python. These solutions would arguably be more terse and efficient in some cases. I don't have anything against the standard library. To me there is a certain

Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

A line chart with mouseover so that you can read the y-value based on the closest x-value. The x-value is found using d3.mouse and scale.invert. The y-value is then found by bisecting the data.

Working with time in Go is pretty straightforward.

Times

Get the current local time:

now := time.Now()                                   // 02 Apr 15 14:03

Construct a time with Date(y, m, d, h, m, s, ns, loc):

Census Tracts of New York City

Here at PyData NYC, I heard a tutorial of how to use numpy and iPython notebooks. In a previous gist, I wrote drew all the zip codes of the Bronx in d3.js

This would be great for reproducing inforgraphics like Educational Attainment in New York City -- Brooklyn which looks a bit like a jigsaw puzzle:

	import os, sys
	from time import mktime
	from datetime import datetime
	from git import Repo, InvalidGitRepositoryError

	MAX_COMMITS_TO_GO_BACK = 200
	BRANCH_TO_SEARCH = 'analytics-caching'

	def display_commit(current_commit, previous_commit):
	changed_files = []

	# Basic Settings
	fontName = "Panic Sans"
	fontSize = 15

	# Extra files to include
	myExtraIncludes = ".env,.gitignore,.htaccess,.pryrc,.rspec,.rspec_parallel,.rvmrc,.ruby-gemset,.ruby-version,.tm_properties,.travis.yml"
	fileBrowserGlob = "{*,$myExtraIncludes}"
	include = "{$include,$myExtraIncludes}"
	includeInFileChooser = "{$includeInFileChooser,$myExtraIncludes}"

	/**
	* FreeBSD privilege escalation CVE-2013-2171 (credits Konstantin Belousov & Alan Cox)
	*
	* tested on FreeBSD 9.1
	* ref: http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc
	*
	* @_hugsy_
	*
	* Syntax :
	$ id