dnene’s gists

dnene / bar.py

Created February 9, 2012 04:32

Redirecting print - a) by reassigning to print b) creating a different variable

	from functools import partial

	mode = "debug"
	def get_logger(stream = None) :
	if stream is None :
	return __builtins__.print
	else :
	return partial(__builtins__.print,file=stream)

	def main() :

dnene / pom_modify.groovy

Created January 25, 2012 15:56

gradle snippet to modify pom contents

	install.repositories.mavenInstaller.pom.whenConfigured { pom ->
	excludedJars = project.bnd.exclusions.tokenize(",").collect{ dep ->
	splitDep = dep.split(':')
	[splitDep[0],splitDep[1]]
	}
	deps = project.configurations['compile'].dependencies.collect {dep ->[dep.group,dep.name]}
	pom.dependencies.removeAll {dep -> !excludedJars.contains([dep.groupId,dep.artifactId])}
	}

dnene / python_computer_scientists.py

Created January 17, 2012 14:40

python is for computer scientists ?

	import csv
	import StringIO

	data = """Bob,Dobbs,[email protected],25.00
	Rocket J.,Squirrel,[email protected],0.00
	Bullwinkle,Moose,[email protected],0.25
	Vim,Wibner,[email protected],25.00"""

	data_stream = StringIO.StringIO(data)

dnene / GradleDemo.scala

Created January 17, 2012 03:39

Using gradle for build and release management with Scala and Java - Part 1. Accompanying code

	package in.vayana.blog.gradle_demo

	object GradleDemo {
	def main(args: Array[String]) = {
	println("hello world!")
	}
	}

dnene / excel_column_headers.scala

Created January 4, 2012 17:57

Converting column numbers into excel column headers. Convert integers into strings as follows 0=> "A", 25=>"Z",26=>"AA",701=>"ZZ", 702=>"AAA"

	import scala.collection.mutable.ListBuffer
	object Coordinates {
	def main(args: Array[String]): Unit = {
	println(numToStr(0))
	println(numToStr(25))
	println(numToStr(26))
	println(numToStr(51))
	println(numToStr(52))
	println(numToStr(700))
	println(numToStr(701))

dnene / Lens.scala

Created November 24, 2011 07:50

The lens API in a single compilable source file

	// author : Tony Morris : @dibblego
	// originally published at : http://paste.pocoo.org/show/512163/

	import collection.SeqLike
	import collection.immutable.Stack


	sealed trait State[S, A] {
	val run: S => (A, S)

dnene / truthy.py

Created October 31, 2011 16:40

grouping by truth values

	import itertools

	print dict((key,list(iter)) for key,iter in itertools.groupby(sorted([True, False, -1, 0, 1, 2, None, object(), [], [object()], {}, {'foo': object()}],key = bool),bool))

dnene / weightsets.py

Created October 31, 2011 00:59

Generate weight combinations for four pieces totalling 40 pounds (int vals)

	wts = tuple((w1,w2,w3,n-(w1+w2+w3)) for w1 in range(1,n) for w2 in range(w1,n - w1) for w3 in range(w2, n-w1-w2) if n-(w1+w2+w3) -w3 >= 0)
	print len(wts)

dnene / weights2.py

Created October 31, 2011 00:40

Broken Weight problem - Challenge by @cbeust

	# Earlier solution at : https://gist.github.com/1326624
	# This one is the same logic, though a bit compact
	# 4 weights are w1, w2, w3, w4 where w1 + w2 + w3 + w4 = 40
	import itertools
	n = 40
	def listremove(list,val):
	if val in list : list.remove(val)
	return list

	for weight in tuple((w1,w2,w3,n-(w1+w2+w3)) for w1 in range(1,n) for w2 in range(w1,n - w1) for w3 in range(w2, n-w1-w2) if n-(w1+w2+w3) -w3 >= 0) :

dnene / weights.py

Created October 31, 2011 00:02

Broken Weight problem

	# Response to challenge at http://beust.com/weblog/2011/10/30/a-new-coding-challenge/
	# Further (braintwistingly) compact version of the same logic : https://gist.github.com/1326654
	import itertools
	n = 40
	weights = tuple((w1,w2,w3,n-(w1+w2+w3)) for w1 in range(1,n) for w2 in range(w1,n - w1) for w3 in range(w2, n-w1-w2) if n-(w1+w2+w3) -w3 >= 0)
	for weight in weights :
	allvals = list(val for val in range(1,n + 1))
	for clength in range(1,5) :
	for combo in itertools.combinations(weight,clength) :
	other = list(weight)

Dhananjay Nene dnene