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Comments:
<0> tirkal: okey doke. thanks for the explanation
<1> import foo-bar ***igns a module object to the *name* foo-bar
<2> chizang: you're welcome. just remember that the same restrictions that apply to all Python names apply also to module names.
<0> tirkal: sounds good
<1> i believe import is a keyword
<2> yes, it is.
<2> but the imported module still ends up being a name.
<0> so, let's say that i modify foo.py (in my text editor).... how would i unload/reload the foo module from the interpreter?
<1> chizang, youu can't really unload a module fully. as for reloading, you can type
<2> reload(foo)
<1> foo = reload(foo)
<2> no need for the "foo =" part
<0> bingo
<1> tirkal, you're wrong there
<1> reload() returns the module object
<2> kbrooks: oh? check it yourself.
<1> it does not refresh the cached module
<3> it does return the module object, but you don't have to do anything with it
<4> how do i break a print over several lines?
<4> or more like.. how can i break one into two lines
<4> tried using '\' but then i got lots of whitespace in the output
<5> you mean like print 'foo\nbar' ?
<6> Hi everyone. I am a newb and I just started programming. I was reading the "How to think like a computer scientist" textbook and I was wondering if I need to have a VERY good knowledge from trigonometry , algebra and math in general in order to begin studying python. Cause I had a bit of problem with the sin,tan,cos and etc. Any comments?
<4> HappyFool: more like i want to break a long line into two, to make the source code more readable
<3> trig: definitely no.
<5> or like print 'foo,'<real newline here>print 'bar'
<3> zamba: print "foo"+(newline)bar
<5> oops
<5> , comes after the quotes
<4> like: print "this is a very long line, with some %s variables %s here and %s there" % (function_that_does_****(blah), yo, another_function_and_so_on(buh))
<5> hmm
<3> unless you are actually writing an app that uses trigonometry, you wouldn't need trig for python. a more general idea of logic/discrete math is far more useful for learning programming
<5> maybe myvals=(function_that_does_****(blah), yo, another_function_and_so_on(buh))
<5> and then print "blah %s etc. ... " % myvals
<4> nono, i want to break the text
<4> HappyFool: you're answering the wrong question now :)
<4> forget the functions
<4> this:
<4> print "lablslmldkm ldkmf glkdng lkdfng skdfj ngslkdjng slkdj ngslkdj nlksdlkgnsdlk jgslkd nlks nkgd IT'S SO LONGlmslkmfsdlfmslkfmslk but i just want it on one line"
<4> the output should be on one line
<4> but in the source code i want to break it into more lines
<6> mcmillen: thnx :)
<4> to make it more readable
<3> zamba: what doesn't work with print ("this is a long" + \ <newline> "line that i am using" % (some, args, here))
<6> mcmillen: I feel more relaxed now :P
<4> mcmillen: ah, you didn't specify the '\' earlier
<3> ah, sorry :)
<4> nah, that doesn't work either
<6> another question: when i type id(3) i get a unique identifier for 3. Is the identifier ***igned that very moment or it was ***igned all that time?
<5> try this: print ("foo"<newline>"bar")
<4> TypeError: not all arguments converted during string formatting
<4> yeah, that worked
<4> HappyFool: thanks
<4> but then i need to use ()?
<5> didn't know python did that C join-the-strings thing
<5> yeah
<4> got an alternative without the ()?
<5> can't you prebuild the string into a variable and then print it ?
<5> or use sys.stdout.write or use print "foo", <newline> print "bar" (, adds a space, though)
<3> zamba: print "foo" \ <newline> "bar" works
<4> mcmillen: python version?
<3> 2.4.1
<4> oh, now it worked?
<4> woot? :)
<3> Ghawk: if you're just learning python, you shouldn't have any reason to use id()... but given that, i think the id() for a built-in is "there" ever since interpreter startup
<3> so "it was ***igned all the time"
<6> I have this problem that I can't remember something or learn it by heart if I don't understand it completely :|
<6> thnx :)
<7> is danh here? wanted to tell him to stop using my nick before i kill his
<1> danh is not danh^
<7> nope
<1> and danh^ is not danh
<1> danh mght have chosen his nick beforrre you
<8> there
<1> oh ****
<1> **** this
<1> **** that
<8> sorry, i give up
<1> danh, change your nickname
<9> "TypeError: 'module' object is not callable"
<9> What causes this?
<10> import os; os(1, 2, 3)
<9> thanks
<11> how can I get the difference of two lists?
<10> You could use a couple sets
<12> take the intersection.
<11> yes, I was just wondering if there was a way without using sets
<13> Is using ConfigParser for persistent objects besides configuration being stupid? I didn't want to use pickle because root has to load the file with data created by untrusted users and I've read pickle is advertized as not safe enough.
<14> well, it'd be like comparing your two kidneys without anesthesia.
<12> use a loop idl.
<14> it's possible, if you know what you're doing, but it's painful.
<11> Yhg1s: well, the + operator works on list so why not -?
<15> idl, Why not use sets? Is it that you care about order? If so, what does [1,2,3,4] - [4,2] yield?
<14> idl: + concatenates. if - did anything, it would remove a tail end. lists are not sets.
<16> Yhg1s: i need some help pls. :) i am using web.py and cheetah. i am trying to use the following cheetah code: #for $author in $authors
<16> $author.person.fullName
<16> #end for
<14> goinup: I don't do cheetah.
<16> Yhg1s: what should my python code look like?
<16> Yhg1s: oh? whys that?
<16> Yhg1s: i am having a b*tch of a time with this for loop..
<14> because I have no need to.
<10> Yhg1s: but web.py is cool? :)
<15> goinup, Why are you latching on to Yhg1s?
<11> CardinalFang: no reason, I guess I will, I just wasn't sure I had to
<14> exarkun: threads are cool too.
<14> exarkun: and Windows.
<16> CardinalFang: sorry, thought that Yhg1s might have known
<10> goinup: maybe somebody in #python.web knows
<15> idl, You don't /have/ to -- but sets are going to be much cheaper for large "sets".
<16> exarkun: thanks ill ask. this problem has been bothering me for about a week. the code isn't working how i thought it would.
<15> idl, For small sets of data, lists will be completely fine.
<10> Yhg1s: I invented the Hippo.
<17> exarkun: does it fly?
<10> Sulis: It's a hippo, dude. No it doesn't fly.
<14> so it's broken?
<10> Speaking of stuff that's broken
<1> lol
<14> Sulis: well, technically, neither is exarkun.
<10> cursor.execute("SELECT foo FROM bar WHERE baz IN (?)", set) - what's the way of spelling that which actually works?
<14> exarkun: I suspect there is no way.
<10> what :(
<14> well, other than escaping elements manually.
<10> dbapi is bad.
<14> or 'IN (%s)" % (",".join(['?'] * len(set)), set)'
<15> Or creating a temp table and for item in set: #insert item; .... "select where baz in (select item from temp)"
<14> I haven't researched it in depth, though. there may be a way, but if so, it's hiding.
<10> That is better than manually escaping. I guess I'll do that.
<14> depending on the database, CardinalFang's temp table idea is either impossible, or faster.
<10> Set is probably never larger than 10 or so elements
<18> exarkun!
<14> well, 'IN (set)' is often not optimized into a table join, whereas using a temp table (where possible) usually is. The difference would be measurable with a set of two elements, if the selected table is large enough.
<10> Oh :(
<10> datazone: hi
<18> you going to be at pycon, right?
<10> as it turns out, no
<18> what1
<14> but if the database doesn't support subselects (or at least not efficiently), or IN is implemented efficiently, or the table is not too large, it probably doesn't matter.
<14> exarkun: shame.
<14> too many people aren't going to pycon :(
<10> datazone: too expensive, not enough tangible benefits
<18> geez
<19> hello all
<19> anyone with asyncore/chat experience?
<10> Poromenos: don't take polls
<10> Poromenos: just ask your question
<19> how do i send data to a listening socket?
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