5 methods creative solution for Morse Clock by veky - python coding challenges

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5 methods solution in Creative category for Morse Clock by veky

checkio=lambda data: __import__("re").sub(r"\d+",lambda match: " ".join(bin(
    digit)[2:].zfill(4) for digit in divmod(int(match.group()),10)),data
    ).replace(":0"," : ").translate({47+x:47-x for x in (1,2)})[2:]

July 19, 2013

Comments:

veky on Aug. 12, 2013, 6:33 p.m.
5 methods (for transforming strings) being: re.sub, zfill, replace, translate, and slicing.

spoty on May 26, 2014, 3:22 p.m.
veky, you are definitely my favorite Obfuscator here :) Can you pls explain <pre class='brush: python'>translate({47+x:47-x for x in (1,2)})[2:] </pre> Thx :)

veky on May 26, 2014, 5:35 p.m.
<blockquote> veky, you are definitely my favorite Obfuscator here :) </blockquote> Thanks. :-) As for translate, evaluate that dict and then look at the ASCII table (or use chr builtin). It transliterates keys to values. Clearer now? :-)

spoty on May 26, 2014, 8:09 p.m.
nice trick with ASCII :), but this is again some py3 magic, cos I'm getting TypeError: expected a character buffer object. Btw veky: how would you comment on this: <a href="https://medium.com/@deliciousrobots/5d2ad703365d/">https://medium.com/@deliciousrobots/5d2ad703365d/</a> Thanks!

veky on May 26, 2014, 8:37 p.m.
<blockquote> but this is again some py3 magic, </blockquote> No magic, just illusionism, as I usually say. :-D <blockquote> how would you comment on this </blockquote> The author doesn't know what he's talking about (he's not alone). "Python 3 has some tiny, incremental improvements over Python 2,", yeah right. And C++ has some tiny incremental improvements over C. :-D My only gripe with transition was that extension .py was kept the same, so naive people think it's the same language. It's not. It's so different that they (Py2 and Py3) even don't have the same main paradigms. Of course, they are designed by the same person, and have the same Platonistic objective, but honestly, Py3 fulfills that objective much more faithfully. I can see that someone possibly could know both, and just like Py2 more. I'm ok with that. I'm not ok with people thinking "it's just the same language with few tweaks", without knowing both thoroughly. Just one example: str in Py3 is Unicode, str in Py2 is ASCII. That alone means the internationalization of the code is turned on its head. In Py2 you had to explicitly say you want Unicode, and many people (Americans:) didn't bother, resulting in very hard internationalization. Now you have to pay the same price, but on a different boundary: when interfacing with old protocols that only know ASCII. Of course, people on that boundary usually have much more knowledge and expertise than someone just tossing few strings around.

spoty on May 26, 2014, 9:05 p.m.
Thanks, I think I need to dive deeper into python, cos just now these differences doesn't really make big sense to me. BTW This is nice gap analysis for anybody interested in py2 vs py3 features: <a href="http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/tutorials/key_differences_between_python_2_and_3.ipynb">http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/tutorials/key_differences_between_python_2_and_3.ipynb</a>

veky on May 26, 2014, 9:43 p.m.
There are many factual errors there (mostly in details), but just as an overview, it is ok. If you feel you need to dive deeper into Py3, the best thing you could do is to treat it as a separate language. Read the docs, tutorials, and act like a newbie in first few months. It will pay off. :-)

spoty on May 28, 2014, 10:58 a.m.
I don't want to spam this thread, but regarding to Unicode in py2 and py3 I have read interesting article: <a href="http://lucumr.pocoo.org/2014/1/5/unicode-in-2-and-3/">http://lucumr.pocoo.org/2014/1/5/unicode-in-2-and-3/</a> For me it seems to be like civil war inside of Python community. One group is talking about how amazing Py3 is etc. And another is proposing to kill it and re-roll to py2, py2.8 For me as a beginner, is all this pretty confusing.

veky on May 28, 2014, 12:27 p.m.
The only problem is people treating them as the same language. I don't have anything more to tell you than I've already said. Those are two different languages, as different as C and C# (and probably more). First group is right, or as right as they can be (everybody is entitled to a favorite programming language:). Second group (wrongly) thinks that if Py3 somehow dissapeared, Guido would invest his time into developing Py2 further. Guido on many occasions said that would not be the case. (See PEP404, for instance.:)

spoty on May 28, 2014, 12:56 p.m.
OK, Thanks for your opinion :)

veky on May 30, 2014, 6:04 p.m.
My opinion is mostly irrelevant. Look: if there is any person that truly, deeply knows both Py2 and Py3, that's surely BDFL. And he really does like Py3 much more. He said so many times. Note also the wording in PEP404: there will be no official Py2.8 (from PSF). I'm not sure about branding stuff, but nothing prevents anyone of these people (who propose to kill Py3) to make an unofficial one. If they make it so good, maybe they'll win enough developers on their side. But it's pretty sure they won't win Guido, because of what I said above.

SandeepManilal on May 30, 2014, 2:46 p.m.
: ) In true Veky style!

veky on May 30, 2014, 5:50 p.m.
Especially the 47+x:47-x part. ;-D

SandeepManilal on May 31, 2014, 2:33 p.m.
How does it handle the different number of bits in first digit of the h,m and s fields in hh:mm:ss ?

veky on May 31, 2014, 6:13 p.m.
.zfill. ;-) Ah, in different fields. Well, that's overreaction: m and s are the same bit_length, only h is not, and that is solved with that [2:] at the end.

SandeepManilal on May 31, 2014, 2:35 p.m.
Also, have you made 5 solutions to this? I ended up using translate (very basic translate) btw.

veky on May 31, 2014, 6:15 p.m.
Of course not. I made one solution with 5 methods in it. Look carefully, you'll see them. ;-)

Mycroft0121 on Aug. 12, 2014, 6:11 p.m.
Always learned a lot from your code. Thx!

veky on Aug. 13, 2014, 6:09 p.m.
My pleasure. ;-)

thibault.dereu on Jan. 6, 2016, 11:04 p.m.
I have just discovered that the 2nd argument of the re.sub function could also be a function. Thanks for the solution !

veky on Jan. 7, 2016, 8:10 a.m.
I'm always glad when people learn something new from my code. ;-)

bsquare on Aug. 3, 2019, 11:25 p.m.
I agree with this, again something learnt today, thanks ;)

jemg2030 on June 27, 2023, 4:40 p.m.
Good One Solution!!

veky on June 27, 2023, 5:35 p.m.
what do you mean by One? One logical line?

Strings Theory

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