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Comments:
<0> feyd: also, not all objects of a cl*** have to execute init, you could do myinstanceone = MyCl***One; myinstanceone.method()
<1> sanmarcos: yes i know that.
<0> feyd: what is your specific questions about cl***es and objects then?
<1> i had read a survey about object oriented programming in MIT open lecture notes..but..
<1> sanmarcos: it was about the communication of different cl***es..
<0> feyd: ill post an example online
<1> sanmarcos:ok thanks..
<1> can i send something on pm?
<0> feyd: sure
<2> CardinalFang: you've come to the right channel ;)
<1> sanmarcos:first i wanna try what you said.
<1> (17:55:00) sanmarcos: feyd: check out the python tut, for example you have two cl***es, both have __inits__, when you do instanceone = MyCl***one(), that cl***es __init__ (init sequence, constructor) is executed, and on instanceone (an object) you have all of MyCl***one's methods (functions that were defined with def in the cl***)
<3> What is the simplest way to initialyse a 2d array (to 0) ?
<4> how to declare a variable as global or so, but when the 'type' is not yet availabe. It seems to work in many (e.g. var=""). python just renews the ***ignment. But is there a clean way?
<5> calmar: Python doesn't 'declare' types.
<5> calmar: 'None' is usually used as 'not available yet'.
<3> any idea ?
<4> Yhg1s: oh I see. another similar question: can a 'declare' a function, even when that will follow later? in a C manner?
<5> any: if you mean a list (rather than an array), something like 'map(list, [[]]*outersize)'
<0> feyd: http://pastebin.com/541744
<5> calmar: nope. but you only need to define functions before you try to execute them, not before another function tries to use 'em.
<4> Yhg1s: Yeah, I see. thanks a lot!
<3> Yhg1s: Is it best than doing a for i in xrange ... append ?
<3> better*
<5> any: well, _best_ might be anything. 'better' would be to create the second dimension as you need it, rather than pre-create it.
<1> sanmarcos: thank you very much..i will try that when i eat something to live:)
<3> Yhg1s: with for loops ?
<5> any: depends on when you need the second dimension.
<3> I would like to 'declare' a 2d list that contains '0'.
<6> any [[0 for i in xrange(x)] for i in xrange(y)]
<3> werneck: exactly what i need, thank you.
<3> I need to learn list comprehensions.
<7> damn i use slackware 10.0 and cant get that damn pythoncard and its dependencies working
<8> what's the python equivalent of the __FUNCTION__ macro in c?
<5> there is none. You can use the inspect or the traceback module to get the same kind of information (and more), though.
<8> hrm. that's annoying.
<5> what are you trying to do?
<8> print out errors in functions without writing the function name into every error string manually :P
<5> use exceptions or warnings.
<8> e.g. printf("%s: blah failed", __FUNCTION__)
<9> or logging
<5> or, as I said, use the traceback or inspect modules.
<5> personally, I'd just print a traceback (even if you continue execution).
<8> tracebacks work for me, but they don't work for engineers who use this program
<9> then use logging
<5> but functionnames do?
<9> and turn on the use of function names
<8> we want something that both of us understand to some degree :P
<0> how would I load a .so module in python?
<5> well, you have four suggestions that can all do what you want.
<8> but i'll look at those suggestions
<5> sanmarcos: 'import'
<8> thanks :)
<0> Yhg1s: hmm ok, somehow it is not detecting it, but ill keep trying
<5> sanmarcos: it should be somewhere in sys.path, like all modules.
<5> sanmarcos: and it should actually be a Python extension, not an arbitrary .so file.
<5> if you want to load one of those, use 'ctypes' or (shudder) 'dl'.
<0> Yhg1s: there should be a .py file in there right?
<0> Yhg1s: I have a def file and so, what was the function to list a module's submodules ?
<5> sanmarcos: eh? a .so file is a compiled (written in C) extension
<5> sanmarcos: it doesn't usually contain .py files.
<5> sanmarcos: also, a .so file can't have submodules, just packages can (and packages are directories.) You can use 'dir()' to see the attributes of a module, which (in the case of a package) can be submodules. But those aren't necessary all the submodules, just the imported ones.
<0> Yhg1s: I have a .so file and a def file somewhere else, ok let me see, (I am trying to install a module on another wndows box)
<5> eh, windows doesn't use .so files.
<5> and I don't know what a 'def' file is. do you mean a .py file?
<0> Yhg1s: ahhh.. right
<1> sanmarcos: i have looked your code.it was helpful
<0> feyd: I am glad :(
<1> sanmarcos:so we just use the functions.if we made the instance ..we can use it on the other cl***es..i guess that's the trick.
<0> s/:(/:)
<10> GAH! I hate the PSP syntaxt.
<10> -t
<0> sp3tt: pretty much everybody does
<10> It's completely impossible to output anything.
<3> How can I something like [x for x in xrange(10) if x>3 else 0] but that works ?
<3> +do
<5> any: [0, 0, 0] + [x for x in xrange(4,10)]
<5> or, if you prefer, [ x>3 and x or 0 for x in xrange(10) ]
<5> (that only works if 'x' can never be false when 'x > 3' is true, but that happens to be the case with integers.)
<3> thank you Yhg1s
<1> i gtg folks.have nice time
<11> later
<4> well, that (global) variable set to None, will get ***igned to an object later in the running - So I set it to None. But python complains already before it's going to run because it sees something like that: None.function(), I think. Or do I something wrong. Hm
<12> hi all
<0> is there any python gui options for developing with OpenStep/ possibly Cocoa?
<4> well, probably I do something wrong :)
<13> SaLuToN!!!
<13> what's the best way to implement a list with 'ranged' keys.
<13> what I am looking for is that when I have a page nr i can lookup some value's belonging with that pagenr
<4> (yeah, the program calls that function once when I don't know about it :)
<13> and the page nr's are specified in ranges
<13> like 1 - 10
<13> 11 - 30
<13> etc.
<13> do I make any sense yet?
<13> =)
<4> dictionnaire is not what you're looking for, isn'it? startu_net
<14> startu_net: I think you could do like: list = { range(1,10): "data for page 1-10", ... }
<14> That's a dictionary, actually.
<14> Though searching that one may be inefficient.
<13> lack: that way it will add ten entries?
<14> No, you'd get one entry:
<13> but then how to find it when I have page 5?
<14> startu_net: THat's the inefficient part :)
<14> What is the data you need to access? An object?
<13> ew... I have to make RDF statements... and those contain the predicats/objects
<13> but I don't think that influences anything....?
<14> Probably the best solution would be to have multiple entries from a list or dictionary, each referencing the same data.
<14> a = someMutableObject()
<14> list[1] = a; list[2] = a; list[3] = a; ...
<13> ok
<14> startu_net: You could do this with a loop, or maybe a list comprehension.
<13> the filling you mean?
<14> Yep.
<13> k.
<13> will do that
<13> thx
<0> what does the 'rb' mode in open() do?
<13> read in byte mode
<0> it is needed in windows to read non text files, but what about in unix?
<0> s/unix/posix
<13> same I gues
<14> I think with posix, you just use 'r' and it should work...
<15> I'm having some issues with a simple script that uses RDFLib ... it chokes when I call the SPARQLGraph's .query() method: http://deadbeefbabe.org/paste/2822 (I've asked at #redfoot but no one's there ... post-superbowl hangovers or something)
<14> I suspect that if you don't open a binary file in Windows with 'rb' it will translate line endings for you.
<15> any suggestions welcome
<0> lack: but If I do "rb" in unix, there are no major drawbacks or consequences? (I am trying to avoid a os specific check for opening an image)
<16> hi all
<16> CardinalFang: hi
<13> shawnb: what r u making?
<14> sanmarcos: Here on my linux box "rb" seems to have no effect different than "r" on a text file... no error, and I read the same data either way.
<0> lack: ok, so I dont need a check
<14> sanmarcos: Doesn't appear that you do.
<15> startu_net: wanting to setup a SPARQL access point (eventually) but I've just recently picked up RDFLib
<15> startu_net: so I'm just trying to run a simple query at first
<15> that script chokes on the line: "result = sparqlGr.query(select, where)"
<16> CardinalFang: you there?
<16> I have a file with names and the rates in front of them
<16> foo 121
<16> bar 12221
<16> foo 1.45
<16> bartw 3421.1
<17> Could someone point me in the right direction here? I'm using sockets (SOCK_STREAM), but socket.recv() brings the whole app to a SCREACHING HALT. The server may send the client data without the client first asking for it, so I need to constantly be checking the socket for data.
<16> Presently I have a awk program to add all foo's, bars etc
<18> wow
<16> can I do it in Python?
<18> this python tut i have here is really neat, now im starting to understand it, and now i see its usefulness
<16> I need total of each and taht too sorted proerly
<16> is python OK for this?
<17> payal, I don't see why not. Pick up good tuts on file I/O and string manipulation. Should be cake.,
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