[UPDATE Feb 2020]: TicToc is now a package. See this post.
Measuring the wall time of various pieces of code is a very useful technique for debugging, profiling, and computation babysitting. The first time I saw a code that performs time measurement was many years ago when a university professor used Matlab’s tic-toc pair. Since then, whenever I learn a new language, the first “serious” code that I write is a tic-toc mechanism. This is my Python Tictoc class: [Github gist].