In August 2009, I wrote a post titled Introduction to Python Decorators. It was an attempt to explain Python decorators in a way that I (and I hoped, others) could grok.
Recently I had occasion to re-read that post. It wasn’t a pleasant experience — it was pretty clear to me that the attempt had failed.
That failure — and two other things — have prompted me to try again.
- Matt Harrison has published an excellent e-book Guide to: Learning Python Decorators.
- I now have a theory about why most explanations of decorators (mine included) fail, and some ideas about how better to structure an introduction to decorators.
There is an old saying to the effect that “Every stick has two ends, one by which it may be picked up, and one by which it may not.” I believe that most explanations of decorators fail because they pick…
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