Re: Reference or Value?

. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Newby - is this what they are looking for ?? and is their a better a way

your tutor why he/she got you to convert the whole phrase to upper case, wasting a whole pile of character conversion operations under the hood, because it's only the acronym that needs to be converted :-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: try except question - serious foo bar question, and pulling my hair out :-)

an enlightening question; but, sometimes they just make unhelpfull wisecracks.  It's a tough choice. I used to use a baby, which avoids the embarrassment but can be just as problematic to order on the internet. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Efficient searching through objects

think there are a couple that Python works well with, but I've never looked into that -- others will no doubt be along with recommendations now I've raised the subject. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: removing duplication from a huge list.

records, and it won't all fit into memory. So your observation is pertinent. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: removing duplication from a huge list.

as soon as they're checked, so with some clever buffering you can stop them from clogging up the buffer. The worst case is if there are a lot of genuine collisions, in which case it's probably not a very good hash. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Performance of Python 3

in Ruby too) is to get the code working, then if there are any *measured* bottlenecks to optimise them in C++. That means that in practice there won't be a perceptible speed difference for the user. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Indentations and future evolution of languages

). That seems to me to work pretty cleanly. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Is python worth learning as a second language?

-- a reasonable programmer can become productive in Python very quickly. For one programmer's experience of learning Python have a look at http://www.python.org/about/success/esr/ (although I grant that Eric Raymond might count slightly higher than just a /reasonable/ programmer!) -- Tim Rowe -- http

Re: 2.6.1 - simple division

exactly in decimal can end up as recurring decimals in binary. 0.8 looks nice and tidy, but in binary (if I get this right) it's 0.1100110011001100..., recurring ad infinitum. The computer has to truncate it somewhere. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Indentations and future evolution of languages

2009/3/8 Tim Roberts t...@probo.com: Tim Rowe digi...@gmail.com wrote: I don't think the article is right that it's silly to have some expression/statement groupings indentation based and some grouped by enclosing tokens -- provided it's done right. The OCAML-based language F# accepts OCAML

Re: Rough draft: Proposed format specifier for a thousands separator

confusion.. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Rough draft: Proposed format specifier for a thousands separator

and non-professional programmers find the locale approach to be frustrating, arcane and non-obvious then by all means propose a way of making it simpler and clearer, but not a bodge that will increase the amount of bad software in the world. -1 for all of the proposals. -- Tim Rowe -- http

Re: Rough draft: Proposed format specifier for a thousands separator

in the proposal being considered addresses any of that. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Threads not Improving Performance in Program

applications, each one has different compromises. You've just discovered one of Python's. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: How complex is complex?

2009/3/20 Hendrik van Rooyen m...@microcorp.co.za: A joke based on the Monty Python series is BY DEFINITION not stupid! But may get /too/ silly. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: python for loop

. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: A design problem I met again and again.

will be too trivial, and it won't give you the derived classes you need, but it's a good first step to breaking a problem down, and might help break your one big class habit. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Why does Python show the whole array?

2009/4/9 Miles semantic...@gmail.com: Clearly, any comparison with a boolean literal should be illegal.  ;) Hey, we could have strict type checking at compile time of /all/ operations, couldn't we? Anybody care to join me over at the Ada list? ;-) -- Tim Rowe -- http://mail.python.org/mailman

Re: need to start a new project , can python do all that ?

), or you could find yourself either with an application you can't use or a very big lawsuit and possibly jail if it goes wrong. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: need to start a new project , can python do all that ?

. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: What do you call a class not intended to be instantiated

on it, I use the class directly, with classmethods. Essentially, the class is used as a function that keeps state from one call to the next. Sounds to me like a functor, aka a function object: http://en.wikipedia.org/wiki/Function_object -- Tim Rowe -- http://mail.python.org/mailman/listinfo

Re: What do you call a class not intended to be instantiated

of thinking a singleton was called for). That's the classic way of implementing a class [to be] used as a function. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

required to do OO. But maybe the original blogger meant by fully OO what I mean by Pure OO? The question I usually ask is Does this language help me get the job done? Python often does. That's all that really matters, isn't it? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Python style: exceptions vs. sys.exit()

! Can I put in a vote *for* the questioner's library dumping to sys.exit() on any abnormal condition? It would reduce employment competition for the rest of us. Why, yes, I am wearing my BOFH hat. How could you tell? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: problem updating variable in a module

in mod.update(a) and print mod.a is not defined. Did you mean mod1? If I change it to that, both print statements print 20 as I'd expect. I take it you do have a *really* good reason to use a global? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: problem updating variable in a module

is due to a typo or some such (happens to us all!) but without seeing the actual code there's not a lot we can do. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Building truth tables

stress that this is quick and dirty -- I'm sure somebody will be along with something better soon! -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Are spams on comp.lang.python a major nuisance?

of python-list which seems to do a pretty good job of blocking them -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

the problems have fallen away and the job was done in an hour or so. But other times it has been the other way around; I've done stuff in Python that I wouldn't know where to begin with in other languages. One of my constant refrains is that *no* tool is ideal for *all* jobs! -- Tim Rowe -- http

Re: Not fully OO ?

, and whilst that means gains in portability it means that in return it loses the ease-of-programming of a tightly integrated platform. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

would be at all straightforward in Python (or C# for that matter, and although Spec# gets closer, it really needs a language like Spark Ada). -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

take another look and see how it's coming on. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

code. There could actually be hundreds of parameters, for all I care. They're not my concern. Most of the time I like that -- the tools are doing my work for me. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Not fully OO ?

on that? And C# has things that Python doesn't (such as static typing). Can we agree on that, too? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: What is not objects in Python?

the tool that does the job in hand most effectively? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: One class per file?

2008/9/29 Roy Smith [EMAIL PROTECTED]: That being said, the one class per file rule is a means to an end. Although in some languages, the end is code that runs. But Python is not Java... -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: What is not objects in Python?

more formal. That suggests that the string's length is an easier phrase to produce and understand, but the length of the string sounds more official. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Inheritance but only partly?

, plain and simple. Working around it won't fix that. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: What is not objects in Python?

... Unless, there is some corresponding distinction in mechanics between speaking and writing. That is, if something about the process of generating writing makes it, post-modification, easier. I'm going to assume that it's been observed across all modes of writing too, (in addition to

Re: When Python should not be used?

library, of course, as is the case with regexp support). Logic languages still seem to have the edge over imperative in some AI and theorem proving applications (although I suppose one /could/ implement Prolog in Python, if Prolog is what you need it's probably best to go straight there). -- Tim Rowe

Re: automatically insert text in ms-word properties

to document properties. If Gita can find that, Python should be at least as good for the job as VB (and I think I'm being unduly kind to VB in putting it like that!) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: indentation

2008/10/21 Marc 'BlackJack' Rintsch [EMAIL PROTECTED]: Ever noticed that computer freaks often start counting at 0? ;-) We grow to be like our pets -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Linq to Python

already has. - Lambda expressions: Python already has. - Auto-Implemented properties: No, but that's just syntactic sugar to make declarations more compact. So all of the language elements that are needed for LINQ are already in Python; a library should do the trick. -- Tim Rowe -- http

Re: Ordering python sets

structures from the client point of view. More or less all the functions wouldn't be enough. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Rewriting a bash script in python

it it might be worth looking at various approaches to requirements capture and specification. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: locating the chorus in a MIDI song?

.. By the way, some of the papers referenced seem confused between refrains (which form part of the verses) and choruses (which are separate musical units). -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Rewriting a bash script in python

rapid prototyping is up there with the rest of them. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Can't get Python for Windows to run

:\\Documents and Settings\\All Users\\Start Menu\\Programs\\Programming\\Python 2.5' but the installer never gave me the chance to choose that. That woudn't stop me running Pythonw directly from the folder in which it's installed, though, would it? -- Tim Rowe -- http://mail.python.org/mailman

Re: Can't get Python for Windows to run

a particular structure for the start menu, and fails to install shortcuts if it doesn't find that structure? I'm used to programs asking me where they want to put the shortcuts, and creating folders if they don't find them (creating *without* asking would, of course, a Hostile Act). -- Tim Rowe -- http

Re: Can't get Python for Windows to run

=C:\Documents and Settings\All Users\StartMenu\Programs\Programming' Thanks, that looks like just what I need. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Python Written in C?

choices for one task are inappropriate for another. Python is a great tool. So is C#. You /can/ do the same job with either, but the smart move is to choose the one that is best adapted to the task in hand. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Decimals not equalling themselves (e.g. 0.2 = 0.2000000001)

. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Multiple values for one key

a DBMS. Certainly the original poster should read up on database design, or chances are he'll have a nightmare maintaining referential integrity. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: duck-type-checking?

and tastes like a duck when roasted, you probably want it to really /be/ a duck and should go back to inheritance. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: duck-type-checking?

form_pun_relating_to_avoiding_a_high_hazard() method) . Fine. If you checked for all the members of the class that your code uses, it makes no difference. ABCs give you a way of doing this, but in their absence it's a long list of checks. If you /can/ use inheritance then it saves having to do those checks. -- Tim Rowe -- http

Re: duck-type-checking?

2008/11/13 Ben Finney [EMAIL PROTECTED]: That is not duck typing. Oh, I'm pretty sure it is. It just isn't /using/ the duck typing in the way you'd like. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Python 3.0 - is this true?

type checking and early binding, so we can catch more bius earlier (compile rather than run time?) ;-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: hello from colombia

actually /would/ be better. If you can do that, in the process you will have gathered the evidence you need. If you can't do that, why are you assuming that Python will be better? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: hello from colombia

2008/11/27 fel [EMAIL PROTECTED]: that's a lot of bytes for do your own homework but thanks, I'll do it. It also included You haven't defined the issue precisely enough :-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Python advocacy ... HELP!

to cope with whatever they meet once they graduate, or are we teaching computer programming, in a couple of specific languages, so that the students will be completely unprepared if they meet anything else? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Is 3.0 worth breaking backward compatibility?

of it in terms of breaking any sort of backwards compatibility because there is no backwards ;-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Don't you just love writing this sort of thing :)

could make it with Python. Fun, yes, but no way anything I would consider for code that is actually going to be /used/ in any way whatsoever! -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Removing None objects from a sequence

2008/12/12 Filip Gruszczyński grusz...@gmail.com: I don't mean memory, but space in code ;-) Trying to save printer paper for your listings, then? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: (Very Newbie) Problems defining a variable

* rate balance += interest year += 1 print(Year %s, at %s rate: %s paid, %s in bank. % (year, rate, interest, balance)) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: (Very Newbie) Problems defining a variable

)): if balance threshold: return rate return .0 Yes, once it's changed from a dictionary to tuples it becomes easier, doesn't it? D'oh! -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: (Very Newbie) Problems defining a variable

limits because it's not making actual transactions. Why would they increase coupling unneccesarily? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: newbie question...

thinking about what you would /want/ it to do. What do you think it will do for invalid or no command line arguments at the moment? Try it! -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: 1 or 1/0 doesn't raise an exception

Unfortunately, bool('Ruby totally pwn3s Python!') True Using Python is not total protection against buggy programs ;-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Factoring Polynomials

the need to use an exception for a normal case. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Why not Ruby?

thing I liked (and I certainly didn't find it elegant, as the original poster described it). What do you see in it that you think would be good in Python? Remember, put in too many shortcuts and you'll end up with code that's as unmaintainable as Perl! -- Tim Rowe -- http://mail.python.org/mailman

Re: Noob question: Is all this typecasting normal?

, I'm quite interested about where in ATM you plan to use Python code, and how you will be meeting the applicable safety standards in the relevant administration. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: English-like Python

2009/1/16 has has.te...@virgin.net: http://www.alice.org/ Ooh, JavaLikeSyntax.py indeed! Why not PythonLikeSyntax, since that's apparently what they used! -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Does Python really follow its philosophy of Readability counts?

after the Ariane 5 incident. I've been at jollier funerals. I can't help thinking that thinking that the team would have benefited from reading David Parnas's work on the specification of the A-7E avionics. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Does Python really follow its philosophy of Readability counts?

of that is because of language differences and how much is because Ada tends to be used on critical projects that also tend to get a lot more attention to development standards. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Does Python really follow its philosophy of Readability counts?

-complete. Specifically, all loops that are required to terminate require a loop variant to be defined. Typically the loop variant is a finite non-negative integer that provably decreases on every pass of the loop, which makes halting decidable. -- Tim Rowe -- http://mail.python.org/mailman/listinfo

Re: Does Python really follow its philosophy of Readability counts?

is tolerable. The loop variant can help with that, too. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: The First Law Of comp.lang.python Dynamics

and the GIL. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: The First Law Of comp.lang.python Dynamics

must surely know about Schluehr's Law? ;-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: The First Law Of comp.lang.python Dynamics

2009/1/23 Martin P. Hellwig martin.hell...@dcuktec.org: Or you can argue that even when an argument is repeated indefinitely it doesn't make it suddenly right. No, but it makes for a confirmation of Schluehr's law :-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Does Python really follow its philosophy of Readability counts?

(not the organisation) is more than a few people. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Newby: how to transform text into lines of text

that treats '\n' as a terminator (eg, Linux) rather than as a separator (eg, MS DOS/Windows). Perhaps what you don't /really/ want to be reminded of is the existence of operating systems other than your preffered one? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: A java hobbyist programmer learning python

don't recognise a difference between System and Applications Hungarian, by the way -- the difference is eliminated if you declare types corresponding to the meanings, which is commonplace in, for example, Ada. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Does Python really follow its philosophy of Readability counts?

not fit all, one language is not ideal for all applications. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: is python Object oriented??

oriented design (Python doesn't). So the answer to Is Python Object-Oriented is either yes or no, depending on what you're /really/ asking. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: search speed

positives. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: search speed

2009/1/30 Scott David Daniels scott.dani...@acm.org: Be careful with your assertion that a regex is faster, it is certainly not always true. I was careful *not* to assert that a regex would be faster, merely that it was *likely* to be in this case. -- Tim Rowe -- http://mail.python.org

Re: is python Object oriented??

philosophy what would be the point of different languages? Is it worth mentioning (again) that Python is not Java? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: what IDE is the best to write python?

see how it would be any different to any other language. Admittedly I use the IDE because I like IDE's, but I don't see why it wouldn't work with a text editor and make -- the command line compiler is there. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: is python Object oriented??

2009/2/2 Russ P. russ.paie...@gmail.com: On Feb 2, 2:46 pm, Tim Rowe digi...@gmail.com wrote: No, we're supposed to believe that the designers of C++, Java, Ada, and Scala are all designers of languages that are not Python. If all languages had the same philosophy what would be the point

Re: what IDE is the best to write python?

2009/2/3 Jervis Whitley jervi...@gmail.com: real programmers use ed. Ed? Eee, tha' were lucky. We had to make holes in Hollerith cards wi' our bare teeth... -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

sys.float_info.epsilon

than 0.0 (which I think all representations can represent exactly). What am I missing here? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: sys.float_info.epsilon

) and will give me the answer inf) so presumably he's trying to protect against divide by zero. So my next question is whether there is any x that can be returned by float() such that x != 0 but some_number / (2 * x) raises a ZeroDivisionError? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python

Re: sys.float_info.epsilon

2009/2/4 Scott David Daniels scott.dani...@acm.org: Thanks for that. It makes me feel guilty to point out that: addition is not associative in real numbers should presumably be addition is not associative in floating point numbers. -- Tim Rowe -- http://mail.python.org/mailman/listinfo

Re: Couple of noobish question

have to use exception handling and catch the Windows case? That's the trouble with using anything in os, of course -- it's os dependent, which is why it's there! :-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Upgrade 2.6 to 3.0

with the differences between versions.. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: sys.float_info.epsilon

:-) -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Couple of noobish question

2009/2/5 afri...@yahoo.co.uk: On Feb 5, 11:14 am, Tim Rowe digi...@gmail.com wrote: ... On an MS Windows system, os.uname()[0] raises an AttributeError -- sys doesn't seem to contain uname. Is that a Linux thing? Would os.name work on Linux? Or would one have to use exception handling

Re: Using while loop and if statement to tell if a binary has an odd or even number of 1's.

. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

Re: Upgrade 2.6 to 3.0

, never mind 3.0). Unless all you want is in the standard library, I think it's worth the general user holding back for a while whilst the tool providers catch up. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list

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