Re: [Tutor] How does this work? Is there anyway to receive live Python help?
FWIW I am an operator on the channel, so, obviously biased. (ssbr) On Mon, May 26, 2014 at 5:15 PM, Steven D'Aprano wrote: > On Mon, May 26, 2014 at 01:04:55PM -0700, Devin Jeanpierre wrote: >> If you want python help "live", try the #python IRC channel at >> irc.freenode.net >> >> You'll need to register a nick though, see >> https://freenode.net/faq.shtml#nicksetup > > Ouch! > > #python is not very friendly to beginners. (Or anyone else for that > matter.) There are many things that are unfriendly about #python, and many things that are friendly about it. I think it's unfair to casually dismiss it as a place to learn. If Emma was who I think they were, their experience seemed fine to me, and their questions seemed suitable for IRC. > It's well-suited to questions which can be asked, and > answered, in one or two sentences, but is completely unsuitable for > extended discussion. On the contrary, I prefer #python to the mailing list for smallish but extended discussion. Because the unit of conversation is very small, and the turnaround time is so short, small misunderstandings can be quickly corrected, and the conversation progresses quickly. It is very often the case that one question leads to another, which leads to another. In IRC this is one relatively quick (but "extended") session. This is its core advantage over something like a mailing list (with its slow round-trip time), and one that I think #python uses fairly well. On the other hand, mailing lists are amazing for esoteric questions that need the right pair of eyes or they can't be answered, or for requests for extended monologues about how something works, etc. -- IRC can do these, especially the latter, but not as well. I think the fact that #python is so popular (for extended discussion, no less) shows that it is not bad, but that it might be a matter of preference. > Also they have a bad habit of banning people without warning or > explanation. And, I have to say, in my opinion often their answers are > actually *wrong*, but if you try to tell them so they ban you. You would not be banned for saying an answer is wrong. That happens all the time, because answers often are wrong. But, for example, you might be banned if you keep telling everyone "lol wow, you have no idea what you are talking about", and insulting things like that (without so much as giving an actual answer yourself). But you would probably be warned first. If you have more details, I can offer more help and/or apologies as warranted. I am only talking in the abstract, and it's possible you saw somebody be wronged. -- Devin ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How does this work? Is there anyway to receive live Python help?
Hi Emma,
As well as everything else others have said, remember that we're
scattered all over the world, so you can ask a question at any time of
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When asking questions, the more detail you can provide, the better our
answers will be. E.g:
"I need help with my homework!"
(Our answer: Yes, you probably do. Next.)
"I need help with my homework. I have to write a guess-the-number game."
(Our answer: Okay, at least now we know what your homework is. How far
have you got? What are you having trouble with?)
"I'm writing a guess-the-number game using Python version 3.3. I'm stuck
at writing this loop, I expect it to ask the user for Yes or No
repeatedly, but it just loops forever even if the user types No. Here is
a copy of my code. Oh, and this is homework, so I'm just looking for
direction and explanation, please don't write my code for me."
(Our answer: Great! That's just about the perfect question, now we can
answer it.)
If you're unsure about something ("how do I find out what version of
Python I'm running?") please ask. That includes basic questions like
"what's a function?". No question about Python is too simple for us to
answer (although for advanced users, sometimes questions can be too
specialized for us).
There are no stupid questions although sometimes people ask good
questions in a stupid manner. Ask questions well and we'll try very hard
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--
Steven
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Re: [Tutor] How does this work? Is there anyway to receive live Python help?
On Mon, May 26, 2014 at 01:04:55PM -0700, Devin Jeanpierre wrote: > If you want python help "live", try the #python IRC channel at > irc.freenode.net > > You'll need to register a nick though, see > https://freenode.net/faq.shtml#nicksetup Ouch! #python is not very friendly to beginners. (Or anyone else for that matter.) It's well-suited to questions which can be asked, and answered, in one or two sentences, but is completely unsuitable for extended discussion. Also they have a bad habit of banning people without warning or explanation. And, I have to say, in my opinion often their answers are actually *wrong*, but if you try to tell them so they ban you. [Disclaimer: I haven't bothered with #python for over a year. It's possible the culture there has completely changed.] -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How does this work? Is there anyway to receive live Python help?
If you want python help "live", try the #python IRC channel at irc.freenode.net You'll need to register a nick though, see https://freenode.net/faq.shtml#nicksetup -- Devin On Mon, May 26, 2014 at 8:40 AM, Emma Soules wrote: > > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How does this work? Is there anyway to receive live Python help?
Hi Emma, You can think of the mailing list as a public community forum. You may, in fact, see other questions and messages that aren't related to your particular question. If you see a question that you think you can answer, feel free to contribute. We try to keep the signal-to-noise ratio as high as possible. Sometimes that effort falters, but we try. :P Good luck to you. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How does this work? Is there anyway to receive live Python help?
On 26/05/14 16:40, Emma Soules wrote: ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor This is a mailing list, so you send emails to it with questions and the people on the list respond with answers (and probably some questions back). And yes, we are all alive... But the time to reply to a mail depends on several factors so you might not get a response for a few hours (usually within 2 or 3, often less). The better the question you ask the better the answer you get. So try to be specific, precise, and include code and error messages (don't just summarize). Telling us the Python version and OS often helps too. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.flickr.com/photos/alangauldphotos ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] How does this work? Is there anyway to receive live Python help?
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Re: [Tutor] Fwd: class to function
On Mon, May 26, 2014 at 12:27 AM, rahmad akbar wrote: > thanks guys for the replies, > > Danny, your explanation helped alot, i'll have a go on Alan Gaud's > tutorial. super thanks You should probably thank Diliup Gabadamudalige instead; I just forwarded his message. Best of wishes to you! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Fwd: class to function
thanks guys for the replies, Danny, your explanation helped alot, i'll have a go on Alan Gaud's tutorial. super thanks On Mon, May 26, 2014 at 9:04 AM, Danny Yoo wrote: > > > -- Forwarded message -- > From: diliup gabadamudalige > Date: Sunday, May 25, 2014 > Subject: [Tutor] class to function > To: Danny Yoo > > > Is it wrong to say that __init__() is to initialize all the conditions you > setupin the class? That's how i see it. > I give below the way I see a class and it's workings. Please Correct if any > mistakes. > > Say you have a class for a Spaceship > Class Spaceship(): > > under the def __init__(): > you set up all the details you want the spaceship to have. For example, > self.engine=100 > self. guns=100 > self.shield=250 > self.life=5 > > self if the Spaceship which will be built using the details given under the > init in the Class Spaceship. So a class is a blu print to build the space > ship and the init function contains all the things the space ship will > contain. > Now when you want a ne space ship say a RED one > you can call the class with > RedShip=Spaceship() > and you can now giv e a new character to the space ship. A colour! like this > RedShip.colour=Red > Now along with the > RedShip.enging=100 > RedShip.guns=100 > RedShip.shield=250 > RedShip.life=5 > the RedShip also has a NEW ATTRIBUTE. Colour. > RedShip.colour=Red > > The def__init__() can also be setup so that you can give all the attributes > its values like this. > def__init__(power,bullets,energy,life) > > RedShip.enging=power > RedShip.guns=bullets > RedShip.shield=energy > RedShip.life=life > > this way each ship can have different attributes. But they are all > Spaceships. > > > > > On Mon, May 26, 2014 at 6:38 AM, Danny Yoo wrote: >> >> > i am trying to understand this code: >> > http://nbviewer.ipython.org/gist/BenLangmead/6665861 >> >> I'm slightly familiar with the purpose of the code. It's constructing >> a Suffix Tree, though not in linear time. >> >> Reading the code... ah. I see. This is enumerating through all >> suffixes, and building it by repeated insertion into a trie. >> >> http://en.wikipedia.org/wiki/Trie >> >> The classes are used here to represent structured data and operations >> to be performed on that structured data. The code fundamentally has a >> structured value called a Node, with two fields to represent the >> string label and the links to other nodes. >> >> >> >> Aside: there is a very good book by Dan Gusfield that talks about >> suffix trees and how to construct them called "Algorithms on Strings, >> Trees and Sequences: Computer Science and Computational Biology" >> >> >> http://www.amazon.com/Algorithms-Strings-Trees-Sequences-Computational/dp/0521585198 >> >> which you may want to look at if you're interested in these algorithms. >> >> >> It is probably not a good idea to try to intermix trying to understand >> an algorithm like this at the same time as you're learning basic >> features in your programming language. Consider a slightly simpler >> example to learn about "classes", apart from the algorithms you are >> studying. Most good Python tutorials should cover how to use classes >> to build structured data and manipulate it. Alan Gauld's Python >> tutorial, for example, should have a section on this. >> >> http://www.alan-g.me.uk/tutor/tutclass.htm >> ___ >> Tutor maillist - Tutor@python.org >> To unsubscribe or change subscription options: >> https://mail.python.org/mailman/listinfo/tutor > > > > > -- > Diliup Gabadamudalige > > http://www.diliupg.com > http://soft.diliupg.com/ > > ** > This e-mail is confidential. It may also be legally privileged. If you are > not the intended recipient or have received it in error, please delete it > and all copies from your system and notify the sender immediately by return > e-mail. Any unauthorized reading, reproducing, printing or further > dissemination of this e-mail or its contents is strictly prohibited and may > be unlawful. Internet communications cannot be guaranteed to be timely, > secure, error or virus-free. The sender does not accept liability for any > errors or omissions. > ** > > > > ___ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > -- many thanks mat ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] Fwd: class to function
-- Forwarded message -- From: *diliup gabadamudalige* Date: Sunday, May 25, 2014 Subject: [Tutor] class to function To: Danny Yoo Is it wrong to say that __init__() is to initialize all the conditions you setupin the class? That's how i see it. I give below the way I see a class and it's workings. Please Correct if any mistakes. Say you have a class for a Spaceship Class Spaceship(): under the def __init__(): you set up all the details you want the spaceship to have. For example, self.engine=100 self. guns=100 self.shield=250 self.life=5 self if the Spaceship which will be built using the details given under the init in the Class Spaceship. So a class is a blu print to build the space ship and the init function contains all the things the space ship will contain. Now when you want a ne space ship say a RED one you can call the class with RedShip=Spaceship() and you can now giv e a new character to the space ship. A colour! like this RedShip.colour=Red Now along with the RedShip.enging=100 RedShip.guns=100 RedShip.shield=250 RedShip.life=5 the RedShip also has a NEW ATTRIBUTE. Colour. RedShip.colour=Red The def__init__() can also be setup so that you can give all the attributes its values like this. def__init__(power,bullets,energy,life) RedShip.enging=power RedShip.guns=bullets RedShip.shield=energy RedShip.life=life this way each ship can have different attributes. But they are all Spaceships. On Mon, May 26, 2014 at 6:38 AM, Danny Yoo > wrote: > > i am trying to understand this code: > > http://nbviewer.ipython.org/gist/BenLangmead/6665861 > > I'm slightly familiar with the purpose of the code. It's constructing > a Suffix Tree, though not in linear time. > > Reading the code... ah. I see. This is enumerating through all > suffixes, and building it by repeated insertion into a trie. > > http://en.wikipedia.org/wiki/Trie > > The classes are used here to represent structured data and operations > to be performed on that structured data. The code fundamentally has a > structured value called a Node, with two fields to represent the > string label and the links to other nodes. > > > > Aside: there is a very good book by Dan Gusfield that talks about > suffix trees and how to construct them called "Algorithms on Strings, > Trees and Sequences: Computer Science and Computational Biology" > > > http://www.amazon.com/Algorithms-Strings-Trees-Sequences-Computational/dp/0521585198 > > which you may want to look at if you're interested in these algorithms. > > > It is probably not a good idea to try to intermix trying to understand > an algorithm like this at the same time as you're learning basic > features in your programming language. Consider a slightly simpler > example to learn about "classes", apart from the algorithms you are > studying. Most good Python tutorials should cover how to use classes > to build structured data and manipulate it. Alan Gauld's Python > tutorial, for example, should have a section on this. > > http://www.alan-g.me.uk/tutor/tutclass.htm > ___ > Tutor maillist - > Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > -- Diliup Gabadamudalige http://www.diliupg.com http://soft.diliupg.com/ ** This e-mail is confidential. It may also be legally privileged. If you are not the intended recipient or have received it in error, please delete it and all copies from your system and notify the sender immediately by return e-mail. Any unauthorized reading, reproducing, printing or further dissemination of this e-mail or its contents is strictly prohibited and may be unlawful. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions. ** ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
