On Wed, Aug 15, 2012 at 1:43 PM, Steven D'Aprano
wrote:
> It was a joke, implying that my mother uses the same "truly unique"
> handle as you.
>
> With over 7 billion people on the planet, and no upper limit on the
> number of handles anyone can take, together with the lack of any
> definitive cen
On Wed, Aug 15, 2012 at 1:56 PM, Ben Finney wrote:
> Chris Angelico writes:
>
>> On Wed, Aug 15, 2012 at 12:06 PM, Thomas 'PointedEars' Lahn
>> wrote:
>> > Please use `[...]' or `[…]' to indicate omission instead. I could
>> > have writ
On Wed, Aug 15, 2012 at 5:28 PM, Ian Kelly wrote:
> Irrelevant. Why would an author adhering to common principles of
> style ever use square-bracketed dots in a statement that he authored
> himself?
You mean exactly the way he did in the post you quoted me as quoting?
ChrisA
--
http://mail.pyt
On Thu, Aug 16, 2012 at 10:47 PM, Hans Mulder wrote:
> Why doesn't it just return an existing instance of the type,
> like bool, int, str and other built-in non-mutable types do?
>
>> py> type(False)() is False
>> True
With int and str, it's only an optimization, and not guaranteed to happen.
>>
On Fri, Aug 17, 2012 at 8:09 AM, Charles Jensen
wrote:
> How would I use ord() to find the unicode value of a string stored in a
> variable?
>
> So the following 2 lines of code will give me the ascii value of the variable
> a. How do I specify ord to give me the unicode value of a?
>
> a
On Fri, Aug 17, 2012 at 1:40 AM, Ramchandra Apte wrote:
> On 16 August 2012 21:00, Mark Lawrence wrote:
>> and "bottom" reads better than "top"
>>
> Look you are the only person complaining about top-posting.
> GMail uses top-posting by default.
> I can't help it if you feel irritated by it.
I p
onsisting of a command word, then optionally parameters
after a space, then a newline. It's easy to debug, easy to read in
your code, and makes sense to anyone who's used a command-line
interface.
Six months from now, when your server still hasn't been compromised,
you'l
On Fri, Aug 17, 2012 at 12:27 PM, Steven D'Aprano
wrote:
> There is already awesome protocols for running Python code remotely over
> a network. Please do not re-invent the wheel without good reason.
>
> See pyro, twisted, rpyc, rpclib, jpc, and probably many others.
But they're all tools for bui
On Fri, Aug 17, 2012 at 11:28 PM, Eric Frederich
wrote:
> Within the debugging console, after importing all of the bindings, there
> would be no reason to import anything whatsoever.
> With just the bindings I created and the Python language we could do
> meaningful debugging.
> So if I block the
On Sat, Aug 18, 2012 at 4:37 AM, Aaron Brady wrote:
> Is there a problem with hacking on the Beta?
Nope. Hack on the beta, then when the release arrives, rebase your
work onto it. I doubt that anything of this nature will be changed
between now and then.
ChrisA
--
http://mail.python.org/mailman
On Sat, Aug 18, 2012 at 2:41 PM, Frank Koshti wrote:
> Hi,
>
> I'm new to regular expressions. I want to be able to match for tokens
> with all their properties in the following examples. I would
> appreciate some direction on how to proceed.
>
>
> @foo1
> @foo2()
> @foo3(anything could go here)
On Sun, Aug 19, 2012 at 1:07 AM, wrote:
> I'm aware of this (and all the blah blah blah you are
> explaining). This always the same song. Memory.
>
> Let me ask. Is Python an 'american" product for us-users
> or is it a tool for everybody [*]?
> Is there any reason why non ascii users are somehow
On Sun, Aug 19, 2012 at 2:38 AM, wrote:
> Sorry guys, I'm not stupid (I think). I can open IDLE with
> Py 3.2 ou Py 3.3 and compare strings manipulations. Py 3.3 is
> always slower. Period.
Ah, but what about all those other operations that use strings under
the covers? As mentioned, namespace l
On Sun, Aug 19, 2012 at 4:26 AM, Paul Rubin wrote:
> Can you explain the issue of "breaking surrogate pairs apart" a little
> more? Switching between encodings based on the string contents seems
> silly at first glance. Strings are immutable so I don't understand why
> not use UTF-8 or UTF-16 fo
On Sun, Aug 19, 2012 at 12:11 PM, Paul Rubin wrote:
> Chris Angelico writes:
>> UTF-8 is highly inefficient for indexing. Given a buffer of (say) a
>> few thousand bytes, how do you locate the 273rd character?
>
> How often do you need to do that, as opposed to tra
On Sun, Aug 19, 2012 at 12:35 PM, Paul Rubin wrote:
> Chris Angelico writes:
>>>>> "asdfqwer"[4:]
>> 'qwer'
>>
>> That's a not uncommon operation when parsing strings or manipulating
>> data. You'd need to completely re
On Sun, Aug 19, 2012 at 1:10 PM, Paul Rubin wrote:
> Chris Angelico writes:
>> I don't have a Python example of parsing a huge string, but I've done
>> it in other languages, and when I can depend on indexing being a cheap
>> operation, I'll happily do exactly
On Sun, Aug 19, 2012 at 5:15 PM, Steven D'Aprano
wrote:
> The software equivalent of somebody handing you a "blank" piece of paper
> and turning it around to see if maybe there's something on the back.
Straight out of a Goon Show, that is. Heh.
ChrisA
--
http://mail.python.org/mailman/listinfo/
On Sun, Aug 19, 2012 at 6:11 PM, Paul Rubin wrote:
> Steven D'Aprano writes:
>> result = text[end:]
>
> if end not near the end of the original string, then this is O(N)
> even with fixed-width representation, because of the char copying.
>
> if it is near the end, by knowing where the string
On Sun, Aug 19, 2012 at 8:13 PM, lipska the kat
wrote:
> The date stamp is different but the Python version is the same
Check out what 'sys.maxunicode' is in each of those Pythons. It's
possible that one is a wide build and the other narrow.
ChrisA
--
http://mail.python.org/mailman/listinfo/pyt
On Sun, Aug 19, 2012 at 8:19 PM, wrote:
> This is precicely the weak point of this flexible
> representation. It uses latin-1 and latin-1 is for
> most users simply unusable.
No, it uses Unicode, and as an optimization, attempts to store the
codepoints in less than four bytes for most strings. T
On Mon, Aug 20, 2012 at 4:09 AM, Mark Lawrence wrote:
> On 19/08/2012 18:51, wxjmfa...@gmail.com wrote:
>>
>> Just for the story.
>>
>> Five minutes after a closed my interactive interpreters windows,
>> the day I tested this stuff. I though:
>> "Too bad I did not noted the extremely bad cases I f
On Mon, Aug 20, 2012 at 3:34 AM, Terry Reedy wrote:
> On 8/19/2012 4:04 AM, Paul Rubin wrote:
>> I realize the folks who designed and implemented PEP 393 are very smart
>> cookies and considered stuff carefully, while I'm just an internet user
>> posting an immediate impression of something I hadn
On Mon, Aug 20, 2012 at 10:35 AM, Terry Reedy wrote:
> On 8/19/2012 6:42 PM, Chris Angelico wrote:
>> However, Python goes a bit further by making it VERY clear that this
>> is a mere optimization, and that Unicode strings and bytes strings are
>> completely different
On Mon, Aug 20, 2012 at 5:31 PM, rusi wrote:
> On Aug 19, 12:15 pm, Steven D'Aprano +comp.lang.pyt...@pearwood.info> wrote:
>> is probably a really great person and kind to small animals and furry
>> children, but...
>
> ROFL!
>
> The first we're all familiar with.
>
> Furry children?
>
> Someth
On Tue, Aug 21, 2012 at 12:01 AM, Levi Nie wrote:
> Does Polymorphism mean python can create object?
I'm not sure what your question means. Could you rephrase, please?
Also, this document may be useful to you:
http://www.catb.org/~esr/faqs/smart-questions.html
Chris Angelico
On Mon, Aug 20, 2012 at 11:38 PM, Hans Mulder wrote:
> Why are you trying to reimplement ping?
>
> All OS'es I am aware of come with a working ping implementation.
For some definition of "working", at least. I've never managed to get
MS Windows to ping broadcast, for instance.
A Google search fo
On Tue, Aug 21, 2012 at 2:01 AM, Paul Rubin wrote:
> Analogy: how big a box is required to hold a pair of shoes? In a purely
> theoretical sense we might say O(S) where S is the shoe size, treating
> shoe size as an arbitrary independent variable. But in the real world,
> shoe size is controlled
On Tue, Aug 21, 2012 at 10:20 AM, alex23 wrote:
> On Tue, Aug 21, 2012 at 12:01 AM, Levi Nie wrote:
>> Does Polymorphism mean python can create object?
>
> No. This isn't D&D. Polymorphism has a distinct meaning in computer science,
> one which you would've found in less time searching Wikipedia
On Wed, Aug 22, 2012 at 11:39 AM, Roy Smith wrote:
> In article
> <5203ee16-5a80-4cd9-9434-ee2efb645...@kg10g2000pbc.googlegroups.com>,
> Anonymous Group wrote:
>
>> What books do you recomend for learning python? Preferably free and/or
>> online.
>
> I would start with http://docs.python.org/tu
ome:
words = [(word.capitalize if len(word.strip(punctuation)) > 3 else
word) for word in line.split(' ')]
The parentheses are optional, but may help you see how the interpreter
parses that.
Code looks pretty good though, and again, a big thank you for making
your question so clear :) It's a pleasure to help you.
Chris Angelico
--
http://mail.python.org/mailman/listinfo/python-list
On Wed, Aug 22, 2012 at 8:28 PM, Kamil Kuduk wrote:
>> Purpose of the script:
>> To capitalize the first letter of any word in a given file, leaving
>> words which have 3 or less letters.
>
> First or all? If first and this is the only purpose of the script you
> can easily use sed:
> less file.tx
On Thu, Aug 23, 2012 at 1:25 AM, shaun wrote:
> def breakuparray(self):
> for row in self.array:
> mer = row[0].ljust(25, ' ')
> merc = row[1].ljust(13, ' ')
> mertype = row[2]
>
On Thu, Aug 23, 2012 at 5:03 AM, lipska the kat
wrote:
> On 22/08/12 19:15, Ian Kelly wrote:
>>
>> You're conflating "strong typing" with "static typing". Strong typing
>> does not refer to restrictions on what type of data can be stored
>> where, but to restrictions on how operations on that dat
On Thu, Aug 23, 2012 at 2:11 PM, Steven D'Aprano
wrote:
> On Thu, 23 Aug 2012 12:02:16 +1000, Chris Angelico wrote:
>
>> 2) Related to the above, you can infinitely nest scopes. There's nothing
>> wrong with having six variables called 'q'; you always use th
On Thu, Aug 23, 2012 at 2:49 PM, Evan Driscoll wrote:
> On 8/22/2012 18:58, Ben Finney wrote:
>> You haven't discovered anything about types; what you have discovered is
>> that Python name bindings are not variables.
>>
>> In fact, Python doesn't have variables – not as C or Java programmers
>> w
On Thu, Aug 23, 2012 at 7:05 PM, Mark Carter wrote:
> Suppose I want to define a function "safe", which returns the argument passed
> if there is no error, and 42 if there is one. So the setup is something like:
>
> def safe(x):
># WHAT WOULD DEFINE HERE?
>
> print safe(666) # prints 666
> pr
On Thu, Aug 23, 2012 at 7:22 PM, Mark Carter wrote:
> OK, so it looks like a solution doesn't exist to the problem as specified. I
> guess it's something that only a language with macros could accommodate.
You're asking for a function to prevent the evaluation of its
arguments from throwing an e
On Thu, Aug 23, 2012 at 7:28 PM, Laszlo Nagy wrote:
>> That can work ONLY if the division of 1/0 doesn't raise an exception.
>> This is why the concept of NaN exists; I'm not sure if there's a way
>> to tell Python to return NaN instead of bombing, but it's most likely
>> only possible with floati
On Fri, Aug 24, 2012 at 4:49 AM, Dennis Lee Bieber
wrote:
> By the time you wrap the equation with a lambda all, named, terms,
> AND supply the named terms after the lambda, you might as well just wrap
> the equation in a plain try/except block.
But closures spare you that hassle.
>>> a=
On Fri, Aug 24, 2012 at 3:56 AM, Steven D'Aprano
wrote:
> But name bindings are a kind of variable. Named memory locations are a
> *different* kind of variable. The behaviour of C variables and Python
> variables do not follow the Liskov Substitution Principle -- you can't
> rip out the entire "na
On Fri, Aug 24, 2012 at 5:22 AM, Evan Driscoll wrote:
> In Python--, any time you use a name, you have to prefix it with the
> word 'variable':
> variable x = 4
> print(variable x)
That gets really unwieldy. You should shorten it to a single symbol.
And your language could be called Python Hy
On Fri, Aug 24, 2012 at 9:54 AM, Dennis Lee Bieber
wrote:
> On Fri, 24 Aug 2012 08:00:59 +1000, Chris Angelico
> declaimed the following in gmane.comp.python.general:
>
>>
>> But again, that probably doesn't help explain the variables. Unless
>> you've c
On Fri, Aug 24, 2012 at 10:36 AM, Roy Smith wrote:
> In fact, I can even write it that way and everything works:
>
globals()["a"] = 42
a
> 42
>
> Even id() thinks they're the same thing:
>
id(a)
> 1755402140
id(globals()["a"])
> 1755402140
Ah, no. What you have there is actual
On Fri, Aug 24, 2012 at 11:53 PM, Prasad, Ramit
wrote:
> Ulrich Eckhardt wrote:
>> BTW: You omitted the attribution line for the text you quoted, whom do
>> you blame for that? That said, "Nonsense" is a strong enough word to
>> start a flamewar... not nice.
> Fair enough. I typically leave off at
On Fri, Aug 24, 2012 at 1:30 AM, Roy Smith wrote:
> I'm working on a tool which scans all the directories in sys.path and finds
> any modules which appear multiple times in the path. It'll also call out any
> .pyc's it finds without matching py's.
>
This is why I love high level languages. The
On Fri, Aug 24, 2012 at 11:27 PM, Grant Edwards wrote:
> Ah, but as we are always fond of saying in this group "that's an
> implementation detail, and not part of the language definition". The
> model where a compiler is "keeping notes about it in Narnia" is also
> perfectly valid. However, RAM i
On Sat, Aug 25, 2012 at 1:04 PM, Steven D'Aprano
wrote:
> You're confusing two different levels of explanation here. On the one
> hand, you're talking about C semantics, where you are explicitly
> responsible for managing unnamed data via indirection (pointers).
> Typically, the *pointers* get giv
On Sat, Aug 25, 2012 at 6:55 PM, Mark Lawrence wrote:
> I'm just wondering out aloud if the number of times this type of thread has
> been debated here will fit into a Python long or float?
Well, when I have to store currency information, I like to store it as
an integer, using the native currenc
On Sat, Aug 25, 2012 at 7:46 PM, Frank Millman wrote:
> Therefore, I think he is saying that he would have preferred that python
> standardise on 4-byte characters, on the grounds that the saving in memory
> does not justify the performance overhead.
If that's indeed the argument, then at least i
On Sat, Aug 25, 2012 at 9:05 PM, Mark Lawrence wrote:
> I thought Terry Reedy had shot down any claims about performance overhead,
> and that the memory savings in many cases must be substantial and therefore
> worthwhile. Or have I misread something? Or what?
My reading of the thread(s) is/are
On Sun, Aug 26, 2012 at 5:56 AM, Dennis Lee Bieber
wrote:
> On Sat, 25 Aug 2012 09:55:27 +0100, Mark Lawrence
> declaimed the following in
> gmane.comp.python.general:
>
>>
>> I'm just wondering out aloud if the number of times this type of thread
>> has been debated here will fit into a Python l
On Sun, Aug 26, 2012 at 3:45 PM, Evan Driscoll wrote:
> Third, and more wackily, you could technically create a C implementation
> that works like Python, where it stores variables (whose addresses aren't
> taken) in a dict keyed by name, and generates code that on a variable access
> looks up the
On Sun, Aug 26, 2012 at 10:02 PM, Steven D'Aprano
wrote:
> On Sun, 26 Aug 2012 16:22:05 +1000, Chris Angelico wrote:
>
>> On Sun, Aug 26, 2012 at 3:45 PM, Evan Driscoll
>> wrote:
>>> Third, and more wackily, you could technically create a C
>>> implem
On Sun, Aug 26, 2012 at 11:43 PM, Steven D'Aprano
wrote:
> It gets worse: Python has multiple namespaces that are searched.
>
> "Go to the Excelsior Hotel and ask the concierge for Mr Smith. If Mr
> Smith isn't staying there, go across the road to the Windsor Hotel and
> ask there. If he's not the
On Mon, Aug 27, 2012 at 12:02 AM, Mark Lawrence wrote:
> On 26/08/2012 14:34, Chris Angelico wrote:
>>
>> Okay, that may be a bit of a fairy tale ending and completely illogical.
>>
>> ChrisA
>
> Then stick to the thread about flexible string representation,
On Mon, Aug 27, 2012 at 12:02 AM, Roy Smith wrote:
> In article <503a2804$0$6574$c3e8da3$54964...@news.astraweb.com>,
> Steven D'Aprano wrote:
>
The mapping of name:address is part of the *compilation* process --
the compiler knows that variable 'x' corresponds to location
1234567
On Mon, Aug 27, 2012 at 12:18 AM, Steven D'Aprano
wrote:
> Also, built-ins require a name lookup too. As you point out, locals are
> special, but Python will search an arbitrarily deep set of nested
> nonlocal scopes, then globals, then builtins.
Ah, builtins, forgot that. So yes, global scope in
On Mon, Aug 27, 2012 at 8:59 PM, mikcec82 wrote:
> Hallo,
>
> I have an html file on my pc and I want to read it to extract some text.
> Can you help on which libs I have to use and how can I do it?
>
> thank you so much.
Try BeautifulSoup. You can find it at the opposite end of a web search.
No
On Mon, Aug 27, 2012 at 11:51 PM, mikcec82 wrote:
> I have this html data and I want to check if it is present a string ""
> or/and a string "NOT PASSED":
Start by scribbling down some notes in your native language (that is,
don't bother trying to write code yet), defining exactly what you'r
On Wed, Aug 29, 2012 at 12:42 PM, rusi wrote:
> Clearly there are 3 string-engines in the python 3 world:
> - 3.2 narrow
> - 3.2 wide
> - 3.3 (flexible)
>
> How difficult would it be to giving the choice of string engine as a
> command-line flag?
> This would avoid the nuisance of having two binar
On Wed, Aug 29, 2012 at 9:40 PM, wrote:
> For a given coding scheme, all code points/characters are
> equivalent. Expecting to handle a sub-range in a coding
> scheme without shaking that coding scheme is impossible.
Not all codepoints are equally likely. That's the whole point behind
variable-l
On Thu, Aug 30, 2012 at 1:43 AM, wrote:
> If "Python" has found a new way to cover the set
> of the Unicode characters, why not proposing it
> to the Unicode consortium?
Python's open source. If some other language wants to borrow the idea,
they can look at the code, or alternatively, just read
On Thu, Aug 30, 2012 at 6:51 PM, wrote:
> Pick up a random text and see the probability this
> text match the most optimized case 1 char / 1 byte,
> practically never.
Only if you talk about a huge document. Try, instead, every string
ever used in a Python script.
Practically always.
But I'm w
On Thu, Aug 30, 2012 at 9:54 PM, wrote:
> What sort of object is posix.stat_result? Its not a dictionary or list or a
> class object as far as I can tell. Thanks for any help.
There's some cool things you can do here. (Note that I'm testing this
on a Windows box, so it's marginally different.)
On Thu, Aug 30, 2012 at 10:50 PM, wrote:
> On Thu, 30 Aug 2012 13:14:57 +0100
> MRAB wrote:
>>What don't you ask Python? I'm sure you'' get something like this:
>>
>> >>> type(s)
>>
>
> Umm , no I don't.
>
type(s)
>
>
> Which isn't terrible helpful.
That's actually the same thing, except
On Fri, Aug 31, 2012 at 8:11 AM, lucas wrote:
> and i can see my executed function in there as a type function, and local and
> global vars, but i can not access or find "harry" or "rtn" the variables
> within the function lucas53. i do not know how to access the local variables
> within lucas
On Fri, Aug 31, 2012 at 8:25 AM, lucas wrote:
>> Far as I can see, you never actually called that function anywhere.
>> ChrisA
>
> doesn't the exec command call the function?
(Side point: You don't have to post to both comp.lang.python and
python-list - they mirror each other.)
What you executed
On Fri, Aug 31, 2012 at 9:54 AM, lucas wrote:
> oh, yeah that was perfect. got it working and it is graceful too. sorry
> about the double post, i thought i was only posting to this one.
Hehe, you're still posting to both. I don't see the duplicates myself,
but I'm sure others do. Just pick on
On Sat, Sep 1, 2012 at 2:15 PM, contro opinion wrote:
> there is a only line in the file nanmed test:
> 1234
> when i open it whit xxd
> xxd test
> what i get is :
> 000: 3132 3334 0a 1234.
> can you explain it ?
I would explain it as a file with one line named
On Sun, Sep 2, 2012 at 10:10 AM, John Ladasky
wrote:
> I haven't seen this joke on the Net in years, does anyone still remember it?
>
> "C combines the power of assembly language with the readability and
> maintainability of assembly language."
Seen it, and it has validity. But I'd rather work w
On Sun, Sep 2, 2012 at 7:44 PM, Rishabh Dixit wrote:
>
> Hi all,
>
> I have a doubt regarding how the list work in following case-
>
ls=[[0]*5]*5
ls[1][1]+=1
ls
> [[0, 1, 0, 0, 0], [0, 1, 0, 0, 0], [0, 1, 0, 0, 0], [0, 1, 0, 0, 0], [0, 1,
> 0, 0, 0]]
>
>
> Here, according to me only
On Mon, Sep 3, 2012 at 7:18 AM, gwhite wrote:
> Thanks again, Terry. There is a lot to the language, I am finding
> out. I am a HW engineer, not really a programmer. Python seems a lot
> more sophisticated than MATLAB.
>
> I'm kinda thinking `write` is likely to be a little more "stable" than
>
On Mon, Sep 3, 2012 at 9:20 AM, gwhite wrote:
> I guess you're saying 3.x will just ignore:
>
> from __future__ import print_function
>
> I'll risk being silly, and thus ask: but what if when I get to 3.x
> there is no __future__, as it is now "present?" Do I need to strip
> out the line?
>
> Wha
On Tue, Sep 4, 2012 at 12:12 AM, Mark R Rivet wrote:
> I have been reading about lists, tuples, and dictionary data
> structures in python and I am confused as to which would be more
> appropriate for a simple database.
I think you're looking at this backwards. A database is for storing
informati
On Tue, Sep 4, 2012 at 11:54 AM, Roy Smith wrote:
> I'm wondering if it might be faster to start at the ends of the strings
> instead of at the beginning?
> I'm also not sure how this work with all the possible UCS/UTF encodings.
> With some of them, you may get the encoding semantics wrong if yo
On Wed, Sep 5, 2012 at 2:32 AM, Johannes Bauer wrote:
> How do you arrive at that conclusion? When comparing two random strings,
> I just derived
>
> n = (256 / 255) * (1 - 256 ^ (-c))
>
> where n is the average number of character comparisons and c. The
> rationale as follows: The first character
On Wed, Sep 5, 2012 at 5:16 AM, Terry Reedy wrote:
> io.open depends on a function the returns an open file descriptor. opener
> exposes that dependency so it can be replaced.
I skimmed the bug report comments but didn't find an answer to this:
Why not just monkey-patch? When a module function ca
On Wed, Sep 5, 2012 at 9:28 AM, Mark Lawrence wrote:
> On 05/09/2012 00:05, Ben Finney wrote:
>>
>>> Look there:
>>> http://www.catb.org/esr/faqs/smart-questions.html#forum
>>
>> The “how to ask question the smart way” essay is not a blunt instrument
>> for beating people over the head with, and i
On Wed, Sep 5, 2012 at 6:29 PM, Peter Otten <__pete...@web.de> wrote:
> comparing every pair in a sample of 1000 8-char words
> taken from '/usr/share/dict/words'
>
> head
> 1: 477222
> 2: 18870 **
> ...
Not understanding this. What are
On Wed, Sep 5, 2012 at 10:54 PM, Ramchandra Apte wrote:
> At least on Linux, if you kill a process using sockets, it takes about 10
> seconds for socket to be closed. A program should try to close all resources.
> OS'es may take a long time to close a unclosed socket automatically.
Err, that's
On Wed, Sep 5, 2012 at 10:51 PM, Ramchandra Apte wrote:
> On Wednesday, 5 September 2012 13:21:58 UTC+5:30, Mark Lawrence wrote:
>> Because you've done something wrong. If you'd like to tell us what
>> you've done to find out where the problem is, we are far more likely to
>> help. Please remem
On Thu, Sep 6, 2012 at 12:21 AM, Peter Otten <__pete...@web.de> wrote:
> charvigro...@gmail.com wrote:
>
>> Finally I have decided to put best interview question and answers.
>>
>> Please visit http://***/web/CorePython/ for core python
>> and http://***/web/PythonAdvanced/ for advanced python
>
>
On Thu, Sep 6, 2012 at 12:34 AM, Chris Angelico wrote:
> However, this strikes me as encouraging some really
> inefficient code, like iterating over all the rows in a table with N+1
> queries (one to get the length, then a separate query for each row).
Huh. And then I scroll down, a
On Thu, Sep 6, 2012 at 1:22 AM, Ian Kelly wrote:
> The lack of an ORDER BY is the least of the problems with that SQL.
> He's also using LIMIT without OFFSET, so the only thing that the
> 'item' argument changes is how many rows are returned (all but one of
> which are ignored), not which one is a
On Thu, Sep 6, 2012 at 2:40 AM, Ian Kelly wrote:
> On Wed, Sep 5, 2012 at 9:34 AM, Chris Angelico wrote:
>> On Thu, Sep 6, 2012 at 1:22 AM, Ian Kelly wrote:
>>> The lack of an ORDER BY is the least of the problems with that SQL.
>>> He's also using LIMIT withou
On Thu, Sep 6, 2012 at 6:26 PM, Ramchandra Apte wrote:
> the is statement could be made into a function
It's not a statement, it's an operator; and functions have far more
overhead than direct operators. There's little benefit in making 'is'
into a function, and high cost; unlike 'print', whose c
On Thu, Sep 6, 2012 at 7:34 PM, Duncan Booth
wrote:
> Steven D'Aprano wrote:
>
>> But at any moment, any object has a specific
>> location, and no other object can have that same location. Two objects
>> cannot both be at the same memory address at the same time.
>>
>
> It is however perfectly po
On Thu, Sep 6, 2012 at 8:45 PM, shaun wrote:
> CODE///
>
> def databasebatchcall(self,tid, bid):
>
> con=cx_Oracle.connect('user/user...@odb4.dcc.company/ODB4TEST.COMPANY.COM')
> cur = con.cursor()
> cur.execute("SELECT * FROM name)
>
On Thu, Sep 6, 2012 at 9:37 PM, shaun wrote:
> class StringCall:
> results=[]
> def databasebatchcall(self,termid, batchid):
> con =
> cx_Oracle.connect('user/user...@odb4.dcc.company.ie/ODB4TEST.COMPANY.IE')
> cur = con.cursor()
> c
n Thu, Sep 6, 2012 at 10:13 PM, Roy Smith wrote:
> In article <50485fca$0$29977$c3e8da3$54964...@news.astraweb.com>,
> Steven D'Aprano wrote:
>
>> In any case, the *worst* case for string equality
>> testing is certainly O(N) (every character must be looked at), and the
>> *best* case is O(1) ob
On Thu, Sep 6, 2012 at 10:07 PM, shaun wrote:
> Hi Chris,
>
> I'm changing it into multiple classes because the script is going to get
> much larger its more for maintainability reasons rather than functionality
> reasons.
Doesn't necessarily have to be multiple classes. Python gives you t
On Thu, Sep 6, 2012 at 11:37 PM, Johannes Bauer wrote:
> Not in my original post. If you read it again, you will clearly see that
> I was talking about purely random strings. And since you like to
> nitpick, I'll clarify further: I'm talking about bitstrings in which
> every bit of every character
On Fri, Sep 7, 2012 at 3:30 AM, Terry Reedy wrote:
> On 9/6/2012 11:08 AM, Yves S. Garret wrote:
>
>> I'd like to know if there are any online Python classes offered
>> online from reliable institutions that you would recommend.
>
> Google 'online programming course python' for taught courses.
On Fri, Sep 7, 2012 at 12:56 AM, Tigerstyle wrote:
> I'm trying to write a module containing a function to examine the contents of
> the current working directory and print out a count of how many files have
> each extension (".txt", ".doc", etc.)
If you haven't already, look into the Python 'd
On Fri, Sep 7, 2012 at 1:44 AM, Helpful person wrote:
> FYI
>
> My Python version is 2.5.4
You may wish to upgrade, that's quite an old version. Unless
something's binding you to version 2.x, I would strongly recommend
migrating to 3.2 or 3.3.
ChrisA
--
http://mail.python.org/mailman/listinfo/p
On Fri, Sep 7, 2012 at 10:53 PM, Ramyasri Dodla wrote:
> I am brand new to python. checking over basic stuff. I came across the
> problem while doing so. If any body aware of the problem, kindly respond me.
>
5/10
> 0
- 5/10
> -1
>
> The second case also should yield a 'zero' but it is g
On Sat, Sep 8, 2012 at 3:27 AM, Helpful person wrote:
> On Sep 7, 5:16 am, Chris Angelico wrote:
>> On Fri, Sep 7, 2012 at 1:44 AM, Helpful person wrote:
>> > FYI
>>
>> > My Python version is 2.5.4
>>
>> You may wish to upgrade, that's quite an
On Sun, Sep 9, 2012 at 3:43 PM, Token Type wrote:
> Is there a unique method in python to unique a list? thanks
I don't believe there's a method for that, but if you don't care about
order, try turning your list into a set and then back into a list.
ChrisA
--
http://mail.python.org/mailman/list
On Sun, Sep 9, 2012 at 4:29 PM, John H. Li wrote:
> However, if I don't put list(set(lemma_list)) to a variable name, it works
> much faster.
Try backdenting that statement. You're currently doing it at every
iteration of the loop - that's why it's so much slower.
But you'll probably find it b
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