| --- Log opened Sat Dec 28 00:00:31 2013 |
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| 04:11 | | * Thalass|snakey aughs at python lists, looks into the csv module |
| 04:11 | <&Derakon> | What's wrong with lists? |
| 04:32 | < Syka> | why would you need to look at csv |
| 04:32 | < Syka> | that is generally the last thing you ever need to do |
| 04:41 | < Thalass|snakey> | heh |
| 04:44 | < Thalass|snakey> | I'm bodging together a flashcard program in python. Taking a list of english words from one text file, and french words from another, and then trying to turn them into a pair of lists, so that it can call up item 3 in both lists, show me one word and compare my answer to the corresponding word in the other list. |
| 04:46 | < Thalass|snakey> | What i get is either a blank output pair, or "string index out of range" |
| 04:47 | <&ToxicFrog> | This is not a problem with Python lists, but with your code. |
| 04:47 | <&ToxicFrog> | That said |
| 04:47 | <&ToxicFrog> | You probably want to zip() the lists together to get one list, which will be easier to work with. |
| 04:48 | <&ToxicFrog> | >>> zip(["hello", "goodbye"], ["bonjour", "au revoir"]) |
| 04:48 | <&ToxicFrog> | [('hello', 'bonjour'), ('goodbye', 'au revoir')] |
| 04:49 | <&McMartin> | ++ |
| 04:52 | < Syka> | McMartin++, now with templates |
| 04:53 | <&Derakon> | "String index out of range" means you're trying to index into a string, not a tuple or list. |
| 04:53 | <&Derakon> | Like, "foo"[0] == 'f' |
| 04:54 | <&Derakon> | But yeah, you should be able to generate your list via zip(open('file1.txt', 'r').readlines(), open('file2.txt', 'r').readlines()) |
| 04:54 | <&Derakon> | Assuming each word is on its own line. |
| 04:55 | <&Derakon> | Mind, that'll keep the newline at the end of the line, but I'm sure you can fix that yourself. |
| 04:55 | <&McMartin> | When I've done similar things, I've used something like | for a divider in one file and then used split() |
| 04:55 | <&McMartin> | It makes it easier to keep the two files in sync |
| 04:56 | <&Derakon> | Ah, yeah. |
| 04:57 | <&Derakon> | Just one file, lines are like "hello|bonjour", "goodbye|au revoir". |
| 04:57 | <&Derakon> | pairs = [line.split('|') for line in open('file.txt', 'r').readlines()] |
| 05:05 | < Thalass|snakey> | I figured it was my code, but wasn't sure where. Lots of reading to do |
| 05:07 | < Thalass|snakey> | also: augh midnight |
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| 17:27 | < harlow> | This morning I realized how what little effort you can put in to programming a guitar hero look a like. Absolutely astounding, ~600 lines of code + use of the sfml library. |
| 17:27 | < harlow> | how* (ignore what) |
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| 17:51 | | marcus [marcus@Nightstar-vos.jd4.223.179.IP] has joined #code |
| 17:52 | | marcus is now known as arcius |
| 17:58 | < arcius> | Tarinaky, may i ask you one question? I am googling the entire day about one problem I'm facing and it seems you had one very similar in the past... I found your problem on google, actually, which brought me here to this channel on IRC. The problem I have is related to SDL_ttf. The link I saw your problem was here http://starforge.co.uk/irclogs/code/code.20110319.log.html |
| 17:59 | < arcius> | around 4 o'clock |
| 17:59 | < arcius> | you and ToxicFrog were working together to solve it... if anyone can help me I would appreciate a lot! |
| 18:00 | <@Tarinaky> | Is it SDL1 or SDL2? |
| 18:00 | < arcius> | SDL2 |
| 18:01 | < arcius> | I'm using ubuntu 13.10... it's working SDL2_main and SDL2_image. I was trying to put some text on the framework I'm working on, but then this weird error appeared... "Couldn't load font file" |
| 18:01 | <@Tarinaky> | Then I'm not sure I ever got it working. This was about as far as I ever really got with sdl2 http://reservedmemoryblog.blogspot.co.uk/2012/08/sdl20-to-create-modern-opengl-c ontext.html |
| 18:02 | < arcius> | :( |
| 18:03 | < arcius> | Ok, thanks anyway |
| 18:03 | <@Tarinaky> | I'm rereading the log. |
| 18:03 | < arcius> | ok.. =) |
| 18:03 | <@Tarinaky> | Ahah! |
| 18:04 | <@Tarinaky> | I'm not sure if this solves your problem but: |
| 18:04 | <@Tarinaky> | Hmm, won't paste nicely into the chat. |
| 18:04 | <@Tarinaky> | Hang on |
| 18:05 | < arcius> | ok! |
| 18:05 | <@Tarinaky> | 05:07 <@ToxicFrog> read(5, "\n \n\n \n\n<!DOCTYPE html>\n<html"..., 4096) = 4096 |
| 18:05 | <@Tarinaky> | 05:08 <@ToxicFrog> What's the output of 'file assets/a_d_mono.ttf'? |
| 18:05 | <@Tarinaky> | 05:08 < Tarinaky> Hmm. HTML. :/ |
| 18:05 | <@Tarinaky> | 05:10 <@ToxicFrog> Welp. |
| 18:05 | <@Tarinaky> | 05:10 < Tarinaky> Don't say it. |
| 18:05 | <@Tarinaky> | 05:10 < Tarinaky> :p |
| 18:05 | <@Tarinaky> | 05:10 <@ToxicFrog> See if it works with an actual TTF. |
| 18:05 | < arcius> | yeah, I didn't understand in the log this solution. That's why I came here |
| 18:05 | < arcius> | ^^ |
| 18:06 | <@Tarinaky> | I think I had downloaded the font from a website and probably tried to use wget to fetch it. |
| 18:06 | <@Tarinaky> | And consequently had downloaded a web page. |
| 18:06 | <@Tarinaky> | No doubt telling me what a naughty boy I was. |
| 18:06 | <@Tarinaky> | So it's a garbage in garbage out error. |
| 18:07 | <@Tarinaky> | TTF files are not web-pages. |
| 18:07 | < arcius> | Hum... darn... that's not what I have... |
| 18:07 | <@Tarinaky> | What's the output of file <your font>? |
| 18:07 | < arcius> | I just copied from /usr/share/fonts/truetype/freefont/ |
| 18:08 | <@Tarinaky> | Try 'file <font path>' |
| 18:08 | < arcius> | FreeSans.ttf: TrueType font data |
| 18:09 | <@Tarinaky> | Okay. Well... Try strace -o program.log <executable> |
| 18:10 | < arcius> | TTF_OpenFont: Couldn't load font file |
| 18:10 | < arcius> | open("/usr/lib/x86_64-linux-gnu/libSDL_ttf-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3 |
| 18:10 | < arcius> | open("/usr/share/fonts/truetype/freefont/FreeSans.ttf", O_RDONLY) = 3 |
| 18:10 | < arcius> | write(1, "TTF_OpenFont: Couldn't load font"..., 38) = 38 |
| 18:10 | <@Tarinaky> | Find the first occurence of the string 'ttf' in program.log and pastebin everything ater that point. |
| 18:10 | < arcius> | I used grep |
| 18:10 | < arcius> | ok... |
| 18:10 | <@Tarinaky> | That's how we diagnosed my idiocy last time :p |
| 18:11 | < arcius> | http://pastebin.com/wrrRyRRd |
| 18:13 | <@Tarinaky> | And now you wait for someone better at this than me to divine what that means >.< |
| 18:14 | < arcius> | I download the dependencies I think I must have, I checked the permission for the file and it's saying I can either read or write... I really hate to set up anything |
| 18:14 | <@Tarinaky> | Can you try a different font file? I /think/, if I understand this correctly (I probably don't) that it's openning the ile and choking on it. |
| 18:16 | < arcius> | I know the SDL_ttf2 used the freetype 2.4.8 I downloaded it, but idk if I did the "make and configure" well |
| 18:16 | < arcius> | so i used apt-get install freetype6-dev... |
| 18:16 | < arcius> | I tried different fonts... |
| 18:17 | <@Tarinaky> | It's just it keeps seeking the start of the file and re-reading the same character string over and over. |
| 18:18 | <@Tarinaky> | read(3, "\0\251\0\255\0\1\0\257\0\257\0\f\0\263\0\263\0\6\0\264\0\270\0\1\0\273\0\276\0\ v\0\277"..., 2680) = 2680 |
| 18:20 | < arcius> | Indeed |
| 18:21 | < Shiz> | can I just say I love strace |
| 18:21 | < Shiz> | and/or dtruss |
| 18:22 | < arcius> | this was supposed to be so simple... gosh... |
| 18:24 | <@Tarinaky> | There's a reason I gave up on SDL2 before getting very far with it :V |
| 18:24 | < Shiz> | arcius: it seems to believe the TTF is malformed |
| 18:24 | < Shiz> | that's what I get from this |
| 18:24 | < Shiz> | (and maybe it is) |
| 18:24 | < Shiz> | isn't there a TTF_GetLastError or something? |
| 18:24 | < Shiz> | oh |
| 18:25 | < Shiz> | there is TTF_GetError() |
| 18:25 | < Shiz> | but Iassume that actuallysays "Couldn't load font file" |
| 18:25 | < arcius> | yes, I'm using TTF_GetError and it is saying that I couldn't load the file |
| 18:26 | < arcius> | I just used SDL because I wanted to use OpenGL after... I wanna do a simple game and later I might play with OpenGL |
| 18:26 | < arcius> | or even keep working with 2D games just for fun |
| 18:26 | <@Tarinaky> | arcius: If I were you I'd skip SDL and start with OpenGL. |
| 18:26 | < Shiz> | error = FT_Open_Face( library, &font->args, index, &font->face ); |
| 18:27 | < Shiz> | so freetpe reports itcan'topen the font |
| 18:27 | <@Tarinaky> | You can always load the non-graphics portions of SDL on their own. |
| 18:27 | < Shiz> | well the error isn't in SDL here |
| 18:27 | < Shiz> | it's in freetype2 |
| 18:27 | <@Tarinaky> | And OpenGL is /awesome/ for 2D stuff. |
| 18:28 | < Shiz> | https://github.com/cmakified/SDL2_ttf/blob/master/SDL_ttf.c#L432 |
| 18:28 | < Shiz> | this is where it fails |
| 18:28 | < arcius> | I did apt-get freetypes2-demos... do you think was that then? haha |
| 18:28 | < Shiz> | and SDL_TTF passes an error number but an appropriate format string |
| 18:28 | < Shiz> | nah |
| 18:29 | < Shiz> | inappropriate* |
| 18:29 | < Shiz> | to TTF_SetError |
| 18:29 | < Shiz> | (aka SDL_SetError) |
| 18:30 | < Shiz> | you should try using freetpye manually |
| 18:30 | < Shiz> | and see what the error it returns is |
| 18:30 | < arcius> | omg |
| 18:31 | < Shiz> | or try using a different font file |
| 18:31 | < Shiz> | :p |
| 18:31 | < arcius> | hehehe |
| 18:31 | < arcius> | the thing is that I already used some font files... I downloaded 2 and tried others from the system |
| 18:31 | < arcius> | /usr/share... |
| 18:34 | < arcius> | guys, thanks a lot |
| 18:34 | < Shiz> | well my earlier suggestion of using FT yourself still stands |
| 18:34 | < Shiz> | maybe your system freetpye library is borked |
| 18:35 | < arcius> | idk how I would use that. I'm very nb... |
| 18:35 | < arcius> | I just downloaded freetype6 |
| 18:36 | < arcius> | or something like that |
| 18:36 | < Shiz> | try to replicate the FT_ calls in this function |
| 18:36 | < Shiz> | https://github.com/cmakified/SDL2_ttf/blob/master/SDL_ttf.c#L369 |
| 18:36 | < Shiz> | (yeah it's pretty long) |
| 18:36 | < arcius> | yeah, i did... libfreetype6-dev |
| 18:44 | < arcius> | I'm gonna remove and install freetype |
| 18:44 | < arcius> | 2.4.8 |
| 18:44 | < arcius> | ops, i cant remove... |
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| 21:07 | | * Derakon ponders spellbooks for Pyrel. |
| 21:08 | <&Derakon> | Each spell is just an "object" that, currently, can only be generated within a spellbook (which in turn is a container object that is only allowed to contain spells). |
| 21:08 | <&Derakon> | I need to attach the spellcasting information to the spell object. |
| 21:09 | <&Derakon> | I already have objects that have on-use procs; spells ought to work similarly. |
| 21:09 | <&Derakon> | But I need to handle spell costs and failure rates too. |
| 21:09 | <&Derakon> | Mm...as procs, presumably. |
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| 23:32 | <@gnolam> | Note to self: if I ever meet the people who wrote Python's sqlite module, punch them in the face. |
| 23:33 | <@gnolam> | Hard. |
| 23:34 | < Syka> | hee |
| 23:34 | <@gnolam> | With knuckle dusters. |
| 23:34 | < Syka> | whyfor |
| 23:35 | <@gnolam> | For example, there's multithreading: "Older SQLite versions had issues with sharing connections between threads. Thatās why the Python module disallows sharing connections and cursors between threads. If you still try to do so, you will get an exception at runtime." |
| 23:36 | <@gnolam> | Translation: "Older versions couldn't do this. New versions can, but we won't let you because fuck you." |
| 23:37 | <@gnolam> | The extension support is the same. "A platform exists where the standard SQLite libraries aren't compiled with this feature. Therefore, we disable it for everyone because fuck you." |
| 23:37 | < Syka> | rofl |
| 23:39 | <@gnolam> | Note that "lowest common denominator" /isn't/ the standard practice for dealing with platform differences in Python. It's "available on: [list of platforms]". |
| 23:39 | <@gnolam> | I can only conclude that they've done this out of pure spite. |
| 23:44 | <@gnolam> | Oh, and did I mention that extensions are necessary for free text search support? |
| 23:45 | | * gnolam adds "with a fucking trench spike" to his note. |
| 23:50 | < Turaiel> | When completing a programming challenge for a company I'm applying for, if they haven't specified that I cannot use third party code, do you think it would be fair to use an algorithm implementation from Rosetta Code? |
| 23:54 | <@Tarinaky> | It's not so much a question of 'fair' so much as whether you adequately demonstrate the skills they're looking for you to demonstrate. |
| 23:55 | <@Tarinaky> | If your entire program consists of int main() { return solve_problem(7); } |
| 23:55 | <@Tarinaky> | You're not demonstrating a lot. |
| 23:55 | < Turaiel> | What they told me: "Keep in mind the goal of this challenge: impress us with your skills of problem solving, learning to apply new tools to a tricky situation, and delivering something of value to the customer. Complete software is less important to us than understanding what you've learned, challenges you faced, and seeing your approach to the situation." |
| 23:56 | < Turaiel> | I have adequate programming skills, but the challenge has me working with a new language and I'm not familiar with ray-casting |
| 23:56 | <@Tarinaky> | Well, then it probably isn't verboten to use third party code in and of itself (that's properly attributed and licensed~) |
| 23:57 | <@Tarinaky> | But frankly, I can't answer that question without reading the mind of the person who set it. |
| 23:57 | <@Tarinaky> | So do what you want. |
| 23:57 | < Turaiel> | I attributed it by URL. It doesn't appear to have a license associated with it other than GNU FDL |
| 23:57 | < Turaiel> | Which is not a code license |
| 23:58 | <@Tarinaky> | If you think using third party code is the correct thing to do then do it - to demonstrate that you think that's the correct thing to do. |
| 23:58 | <@Tarinaky> | I'd be... cautious about using code you can't license adequately though. |
| 23:58 | < Turaiel> | I know, but it's the only ray casting algorithm available for Racket |
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| 23:59 | < Turaiel> | Or rather, the only implementation |
| 23:59 | <@Tarinaky> | Well. I'd be tempted to fall on the other-side of the knife to you I think. |
| 23:59 | <@Tarinaky> | But that doesn't mean you're wrong. |
| 23:59 | < Turaiel> | I feel really iffy about it. |
| --- Log closed Sun Dec 29 00:00:00 2013 |