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Software Engineering

The most popular blog posts about software engineering on Hacker News. 108 posts.

2008
91

Understanding Ruby Blocks, Procs and Lambdas

Robert leads large and complex firms through mission-critical Digital Transformations with a focus on Artificial Intelligence and Cloud Engineering. As a Presidential Innovation Fellow at Barack Obama's White House , Robert reformed digital services across the Federal Government, resulting in millions of veterans…

92

On Python packaging

So currently there's a bit of a to-do involving Debian's Ruby packaging team and the Ruby "gem" system. [This document](http://pkg-ruby-extras.alioth.debian.org/rubygems.html) …

93

gorilla arm

The side-effect that destroyed touch-screens as a mainstream input technology despite a promising start in the early 1980s. It seems the designers of all those spiffy touch-menu systems failed to notice that humans aren't designed to hold their arms in front of their faces making small motions. After more than a very…

94

Top Down Operator Precedence

Vaughan Pratt presented "Top Down Operator Precedence" at the first annual Principles of Programming Languages Symposium in Boston in 1973. In the paper Pratt described a parsing technique that combines the best properties of Recursive Descent and Floyd 's Operator Precedence. It is easy to use. It feels a lot like…

95

the Lemacs/FSFmacs schism

In 1991, I was working at Lucid Inc., and our newest product, Energize, was an integrated development environment for C and C++ on Unix. The design of this development environment involved very tight integration between the various tools: compilers, linkers, debuggers, graphers, and editors. So of course we needed a…

96

Netflix Update: Try This at Home

Ok, so here's where I tell all about how I (now we) got to be tied for third place on the netflix prize . And I don't mean a sordid tale of computing in the jungle, but rather the actual math and methods. So yes, after reading this post, you too should be able to rank in the top ten or so.

97

PEP 20 – The Zen of Python

Long time Pythoneer Tim Peters succinctly channels the BDFL’s guiding principles for Python’s design into 20 aphorisms, only 19 of which have been written down.

98

Raw Thought: Aaron Swartz's Weblog

As we’ve discussed, in Batman Begins 1960s-style full employment and antipoverty programs lead to skyrocketing crime while in The Dark Knight Rises 1980s-style tough-on-crime policies and neoliberal economics lead to a revolt of the economic underclass. The films are mirror images, one about the failure of liberal…

101

A Million-user Comet Application with Mochiweb, Part 1

In this series I will detail what I found out empirically about how mochiweb performs with lots of open connections, and show how to build a comet application using mochiweb, where each mochiweb connection is registered with a router which dispatches messages to various users. We end up with a working application that…

104

PEP 3104 – Access to Names in Outer Scopes

In most languages that support nested scopes, code can refer to or rebind (assign to) any name in the nearest enclosing scope. Currently, Python code can refer to a name in any enclosing scope, but it can only rebind names in two scopes: the local scope...

106

PEP 318 – Decorators for Functions and Methods

The current method for transforming functions and methods (for instance, declaring them as a class or static method) is awkward and can lead to code that is difficult to understand. Ideally, these transformations should be made at the same point in the...

107

The Meaning of ‘Hack’

“ The word hack doesn't really have 69 different meanings”, according to MIT hacker Phil Agre. “ In fact, hack has only one meaning, an extremely subtle and profound one which defies articulation. Which connotation is implied by a given use of the word depends in similarly profound ways on the context. Similar remarks…

108

wheel of reincarnation

[coined in a paper by T.H. Myer and I.E. Sutherland On the Design of Display Processors , Comm. ACM, Vol. 11, no. 6, June 1968)] Term used to refer to a well-known effect whereby function in a computing system family is migrated out to special-purpose peripheral hardware for speed, then the peripheral evolves toward…