I've always wanted to know what the foo, bar, baz, etc... names mean. Several times I've found these terms in scientific articles. Furthermore this terminology in some way serves as a standard for...

What is the meaning of _ after for in this code? if tbh.bag: n = 0 for _ in tbh.bag.atom_set(): n += 1

I have a python specific question. What does a single underscore _ as a parameter means? I have a function calling hexdump(_). The _ was never defined, so I guess it has some special value, I could...

This was something originally discussed during a presentation given by Charles Brian Quinn of the Big Nerd Ranch at acts_as_conference. He was discussing what he had learned from instructing ...

Where did they come from and when were they first used?

Peter Norvig has an essay describing a program to solve sudoku puzzles, even the hardest ones, by combining deterministic logical operations and smart traversal of the possible solutions. The...