Great work! There are a few typos, I'll try to get to a PR on those.
I wonder if it's worth noting that None is a singleton, while 42 is just a
value. I.e. there might be several distinct objects that happen to be the
int 42, but not so with None.
Of course, in CPython, small integers are cached
Nice work, very usefull.
Is it interesting enough to note that the negation of None is True?
(probably just because when it's casted to bool, it becomes False).
Also, even if None is seen as the value for the lack of value, it is
still hashable and can be used as a key to a dict (I'm not
(Sorry to break threading on this. In a fit of idiocy I deleted the
original email before realising I wanted to reply.)
First off, thanks for doing this Jonathan. Documentation is usually a
thankless task, so we ought to start by thanking you!
I have a few comments on both content and
The conversation about syntactic sugar for ``functools.partial`` led to a
question about whether jargon like "lambda" makes the concept of an
anonymous function more difficult to learn.
In my own experience teaching, I find that many concepts are easier to
introduce if I avoid the Python jargon
I'm perhaps the newest and most ignorant subscriber here - I daresay
everyone here has superior python knowledge to me, and all my other
computing knowledge is inferior to what I can do with python. (and so far,
I've had no influence at all on python)
However, this mailing list, generally, does
Hi
I'm pleased to announce that I've completed the first draft of my
page. It's viewable on gitub.
https://github.com/jfine2358/py-jfine2358/blob/master/docs/none-is-special.md
To quote from that page:
This page arose from a thread on the python-ideas list. I thank Steve
Dower, Paul Moore,
On Mon, Aug 13, 2018 at 07:46:49PM +0200, Stefan Behnel wrote:
> Michel Desmoulin schrieb am 09.08.2018 um 18:59:
> > I'd rather have functools.partial() to be added as a new method on
> > function objects.
[...]
> > add_2 = add.partial(2)
>
> Except that this only works for functions, not for
On Tue, Aug 14, 2018 at 10:45 AM, Rhodri James wrote:
> On 'None is a constant':
>
> Erm. I think you've got carried away with simplifying this and gone down
> a blind alley. None is a literal, and like any other literal can't be
> rebound.
no, it's not -- None is keyword, and just like any
On Wed, Aug 15, 2018 at 9:09 AM, Chris Barker via Python-ideas
wrote:
> no, it's not -- None is keyword, and just like any other keyword, it can't
> be re-bound. However, every other keyword I tried to rebind results in a
> generic:
>
> SyntaxError: invalid syntax
>
> (except None, True, and
On Tue, Aug 14, 2018 at 10:25 AM, David Mertz wrote:
> Great work! There are a few typos, I'll try to get to a PR on those.
>
> I wonder if it's worth noting that None is a singleton, while 42 is just a
> value. I.e. there might be several distinct objects that happen to be the
> int 42, but not
On 14/08/2018 20:42, Michael Selik wrote:
>
> Good comparisons can be found in other fields:
> * Driving -- brakes vs stoppers
> * Sailing -- starboard vs right-side
> * Medicine -- postprandial vs after-meal
> * Biology -- dinosaur vs direlizard
>
While NOT wanting to start another fight I
Hi Everyone
Brett Cannon wrote:
> I shouldn't be having to explain to adults on how to communicate among
> strangers of different cultures, but here we are. I did an entire PyCon US
> keynote on why we need to treat open source as a series of kindnesses and
> react as such:
>
> Do we often call functools.partial on arbitrary callable objects that we
> don't know in advance?
For my part, I don’t think I’ve ever used partial in production code.
It just seems easier to simply fo it by hand with a closure ( Am I
using that term right? I still don’t quite get the
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