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Subject: Re: LangWart: Method congestion from mutate multiplicty
From: Rick Johnson <rantingrickjohnson@gmail.com>
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Xref: csiph.com comp.lang.python:38724

On Monday, February 11, 2013 7:27:30 AM UTC-6, Chris Angelico wrote:

> So...
> flatten([None, 23, [1, 2, 3], (2, 3), ["spam", "ham"]])
>=20
> would return
>=20
> [None, 23, 1, 2, 3, (2, 3), "spam", "ham"]
>=20
> I think that's even more unexpected.

Why? Are you over-analyzing? Show me a result that /does/ make you happy.=
=20

Do you remember when i was talking about how i attempt to intuit interfaces=
 before reading any docs? Well i have news for you Chris, what you are doin=
g is NOT "intuiting" how flatten will work, what you are doing is "projecti=
ng" how flatten will work; these are two completely different concepts Chri=
s.

The word "flatten" is too ambiguous to intuit the /exact/ "result". The onl=
y intuit-able attribute of flatten is that calling list.flatten() will resu=
lt in a list that probably looks different than the current list. Intuition=
 is your friend; not your own personal "clairvoyant side-kick"!

To learn the interface you need to initially "intuit", but then you need to=
 test. Run a few example sequences and see what results you get, compare th=
ose results to what you /expected/ to get. If it works the way you expect, =
move on to the next topic, if not, dig deeper.=20

You can't procrastinate over this method forever because NEWSFLASH you will=
 /never/ find a perfect flatten algorithm that will please /everyone/, so j=
ust pick the most logical and consistent, and MOVE ON!=20

Infinite recursion anyone?

while obj.repeat is True:
   obj.lather()
   obj.rinse()
   obj.repeat =3D True
  =20