On 4/03/24 06:30, kirby urner wrote:
On Sat, Mar 2, 2024 at 3:37 PM Wes Turner <wes.tur...@gmail.com
<mailto:wes.tur...@gmail.com>> wrote:
They're dunder methods; double-underscore
Certainly they are and my intro definitely includes this information.
Check out the following Dog class, endowed with two of Python’s “magic
methods” also known as: “dunder methods” (with “dunder” being short for
“double underline”) or “special methods”.
Please read "Why naming things is hard"
(https://hilton.org.uk/blog/why-naming-things-is-hard) - and yes there
is any number of similar articles.
The pertinent quotation is "There are only two hard things in Computer
Science: cache invalidation and naming things." (Phil Karlton).
When training, the difficulty of choosing names is magnified by the
difficulty of choosing examples. Short, understandable, apparent,
illustrative, etc...
So, here's a (Socratic) question: have you ever met a computer scientist
or programming professional who has had to write code about a dog's
stomach, or even the other popular one: a bowl of fruit?
Next Socratic question: could we, or should we, choose more realistic
examples (and names)? Yes, high schoolers have little experience of the
world and of commerce. So, talking of products and minimum order
quantities might be a stretch. However, there are plenty of examples
where we can talk about class Person, and either a wallet which we'd
like filled, or a list of skills being learned, for example.
The industry has a phrase, to do with using our own software creations:
"eating our own dog-food". Ghastly! Maybe? That's about the closest most
of us will ever come to programming dogs!
--
Regards =dn
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