<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 12, 2016 at 11:56 PM, Pavol Lisy <span dir="ltr"><<a href="mailto:pavol.lisy@gmail.com" target="_blank">pavol.lisy@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 7/13/16, Ben Finney <<a href="mailto:ben%2Bpython@benfinney.id.au">ben+python@benfinney.id.au</a>> wrote:<br>
</span><div><div class="h5">> Pavol Lisy <<a href="mailto:pavol.lisy@gmail.com">pavol.lisy@gmail.com</a>> writes:<br>
><br>
>> Questions around "only one possibilities how to write it" could be<br>
>> probably answered with this?<br>
>><br>
>> a<b<br>
>> a.__lt__(b)<br>
><br>
> The maxim is not “only one way”. That is a common misconception, but it<br>
> is easily dispelled: read the Zen of Python (by ‘import this’ in the<br>
> interactive prompt).<br>
><br>
> Rather, the maxim is “There should be one obvious way to do it”, with a<br>
> parenthetical “and preferably only one”.<br>
><br>
> So the emphasis is on the way being *obvious*, and all other ways being<br>
> non-obvious. This leads, of course, to choosing the best way to also be<br>
> the one obvious way to do it.<br>
><br>
> Your example above supports this: the comparison ‘a < b’ is the one<br>
> obvious way to compare whether ‘a’ is less than ‘b’.<br>
><br>
> --<br>
> \ “It is forbidden to steal hotel towels. Please if you are not |<br>
> `\ person to do such is please not to read notice.” —hotel, |<br>
> _o__) Kowloon, Hong Kong |<br>
> Ben Finney<br>
><br>
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<br>
</div></div>I don't support this lambda proposal (in this moment - but probably<br>
somebody could convince me).<br>
<br></blockquote><div><br></div><div>I don't either, but I'm glad it was brought up regardless...</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
But if we will accept it then Unicode version could be the obvious one<br>
couldn't be?<br></blockquote><div><br></div><div>I certainly hope not. As a user with no lambda key on my keyboard, the only way that I know to input one is to do a google search for "unicode greek letter lambda" and copy/paste one of those characters into my editor :-).</div><div><br></div><div>FWIW, I think that the cons here far outweigh the pros -- As a former physicist, when I see a lambda character, I immediately think of a whole host of things (wavelength!) and none of them is "anonymous function". Perhaps someone who works more with lambda calculus (or with a more rigorous comp-sci background) would disagree -- but my point is that this notation would possibly only serve a small community -- and it could possibly break code for another small group of users who are using lambdas as variable names to be clever (which is another practice that I wouldn't support...) and finally, I think it might just be confusing for other people (1-character non-ascii keywords? If my editor's syntax definition wasn't up-to-date, I'd definitely expect a `SyntaxError` from that).</div><div><br></div><div>All of that aside, it seems like the pros that the original poster mentioned could be gained by writing a plugin for your editor that makes the swap on save and load. Apparently this already exists for some editors -- Why risk breaking existing code to add a syntax that can be handled by an editor extension?</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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