> On Sun, Jan 29, 2012 at 8:07 PM, Chris Rebert wrote:
>> On Sun, Jan 29, 2012 at 12:52 AM, Alec Taylor wrote:
>>> PyCrypto's install is giving an autoconf error on Windows, whether I
>>> install from the git repo or normally.
>>>
>>> Traceback (
On Wed, Feb 1, 2012 at 9:11 AM, Olive wrote:
> I am learning python and maybe this is obvious but I have not been able
> to see a solution. What I would like to do is to be able to execute a
> function within the namespace I would have obtained with from
> import *
>
> For example if I write:
>
On Wed, Feb 1, 2012 at 1:00 PM, Russell E. Owen wrote:
> I have an odd and very intermittent problem in Python script.
> Occasionally it fails with this error:
>
> Traceback (most recent call last):
> File
> "/Applications/APO/TTUI.app/Contents/Resources/lib/python2.7/TUI/Base/Bas
> eFocusScript.
On Thu, Feb 2, 2012 at 5:09 PM, Emmanuel Mayssat wrote:
> Hello all,
>
> I would like to instantiate my class as follow
>
> QObject(, )
> QObject()
>
> an example would be
> http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qmenu.html
>
> How can I do this without have to specify parent=
On Fri, Feb 3, 2012 at 12:06 PM, Debashish Saha wrote:
> would u like to help me by answering some vbasic questions about python?
You might prefer to ask such questions on the tutor mailing list instead:
http://mail.python.org/mailman/listinfo/tutor
Cheers,
Chris
--
http://mail.python.org/mailm
On Fri, Feb 3, 2012 at 4:27 PM, Antti J Ylikoski wrote:
>
> In Python textbooks that I have read, it is usually not mentioned that
> we can very easily program Common LISP-style closures with Python. It
> is done as follows:
>
> -
>
> # Make a Common LISP-like
On Sun, Feb 5, 2012 at 2:41 PM, Emeka wrote:
>
> Hello All,
>
> I noticed that MySQLdb not allowing hyphen may be way to prevent injection
> attack.
> I have something like below:
>
> "insert into reviews(message, title)values('%s', '%s')" %( "We don't know
> where to go","We can't wait till morro
On Sun, Feb 5, 2012 at 9:48 PM, Mohsen Pahlevanzadeh
wrote:
> Dear all,
>
> You know python has many functions for operators overloading such as
> __add__, __radd__, __invert__, __eq__ and so on.
> How i see the complete list of them with help function?
I don't know if there's a help() entry for
On Sat, Feb 4, 2012 at 4:47 AM, Jean Dupont wrote:
> I need to set the following options I found in a Perl-script in Python for
> serial communication with a device (a voltmeter):
>
> $port->handshake("none");
> $port->rts_active(0);
> $port->dtr_active(1);
>
> I have thus far the following stat
On Tue, Feb 7, 2012 at 4:11 AM, Florian Weimer wrote:
> I'm slightly confused about docstrings and HTML documentation. I used
> to think that the library reference was (in part) generated from the
> source code, but this does not seem to be the case.
>
> Is there any tool support for keeping docu
On Wed, Feb 8, 2012 at 8:54 AM, Nathan Rice
wrote:
> As a user:
> * Finding the right module in PyPi is a pain because there is limited,
> low quality semantic information, and there is no code indexing.
> * I have to install the module to examine it; I don't need to look at
> docs all the time,
On Wed, Feb 8, 2012 at 9:15 AM, HoneyMonster wrote:
> I am quite new to Python (2.7 on Linux), and have built a few modules
> using wxPython/wxGlade for GUI elements and Psycopg2 for database access.
> I adhere mostly to the PEP8 guidelines, and use Pylint to help with
> quality control.
>
> So fa
On Thu, Feb 9, 2012 at 12:39 PM, Peter Otten <__pete...@web.de> wrote:
> noydb wrote:
>
>> How do you format a number to print with commas?
>>
>> Some quick searching, i came up with:
>>
> import locale
> locale.setlocale(locale.LC_ALL, "")
> locale.format('%d', 2348721, True)
>> '2,348
On Thu, Feb 9, 2012 at 1:16 PM, Peter Otten <__pete...@web.de> wrote:
> Chris Rebert wrote:
>> On Thu, Feb 9, 2012 at 12:39 PM, Peter Otten <__pete...@web.de> wrote:
>>>>>> import locale
>>>>>> locale.setlocale(locale.LC_ALL, "
On Thu, Feb 9, 2012 at 5:23 PM, noydb wrote:
> hmmm, okay.
>
> So how would you round UP always? Say the number is 3219, so you want
> 3300 returned.
http://stackoverflow.com/questions/17944/how-to-round-up-the-result-of-integer-division/96921
Thus: (3219 + 99) // 100
Slight tangent: Beware ne
On Fri, Feb 10, 2012 at 8:53 AM, Nathan Rice
wrote:
> Lets also not forget that knowing an object is immutable lets you do a
> lot of optimizations; it can be inlined, it is safe to convert to a
> contiguous block of memory and stuff in cache, etc. If you know the
> input to a function is guaran
On Fri, Feb 10, 2012 at 1:25 PM, Olive wrote:
> In the datetime module, it has support for a notion of timezone but is
> it possible to use one of the available timezone (I am on Linux). Linux
> has a notion of timezone (in my distribution, they are stored
> in /usr/share/zoneinfo). I would like t
On Fri, Feb 10, 2012 at 3:01 PM, Righard van Roy wrote:
> Hello,
>
> I want to add an item to a list, except if the evaluation of that item
> results in an exception.
> I could do that like this:
>
> def r(x):
> if x > 3:
> raise(ValueError)
>
> try:
> list.append(r(1))
> except:
>
On Sun, Feb 12, 2012 at 12:14 PM, Steven W. Orr wrote:
> I have a 'master' directory and a collection of 'slave' dirs. I want the
> master to collect all of the stuff in the slave dirs.
>
> The slaves all look like this,
>
> .
> |-- slaveX
> | `-- archI
> | | `-- distJ
> | | | ` -- FIL
On Mon, Feb 13, 2012 at 2:01 PM, Bruce Eckel wrote:
> I'm creating a class to encapsulate OS paths, to reduce the visual
> noise and typing from the os.path methods. I've got the class and nose
> tests below, and everything works except the last test which I've
> prefixed with XXX:
>
> def XXXt
On Wed, Feb 15, 2012 at 10:20 AM, Franck Ditter wrote:
> What is the cost of calling primes(n) below ? I'm mainly interested in
> knowing if the call to append is O(1), even amortized.
> Do lists in Python 3 behave like ArrayList in Java (if the capacity
> is full, then the array grows by more tha
On Wed, Feb 15, 2012 at 10:43 AM, Ian Kelly wrote:
> On Wed, Feb 15, 2012 at 11:20 AM, Franck Ditter wrote:
>> Do lists in Python 3 behave like ArrayList in Java (if the capacity
>> is full, then the array grows by more than 1 element) ?
>
> I believe the behavior in CPython is that if the array
On Wed, Feb 15, 2012 at 12:12 PM, Rituparna Sengupta wrote:
> Hi,
>
> I'm working on this code and I keep getting an error. It might be some very
> basic thing but I was wondering if someone could help. Its a loop within a
> loop. The part outside the innermost loop gets printed fine, but the pa
On Wed, Feb 15, 2012 at 2:43 PM, Calvin Spealman wrote:
> I've recently been looking into different options to package python
> code into stand-alone executables, with tools like Py2EXE and
> PyInstaller, but I'm left feeling a little lost. Documentation seems
> sparse on all of them, the setups a
On Thu, Feb 16, 2012 at 1:52 AM, Smiley 4321 wrote:
> All,
>
> I am a python newbie.
>
> Let's say I have a filename (test.conf) as below -
>
>
> int Apple(int, int);
> void Jump_OnUnload(float, int);
> int Jockey_Apple_cat_1KK(float, int, char, int);
> int Jockey_Apple_cat_look(int, float, i
On Fri, Feb 17, 2012 at 10:51 AM, Brad Tilley wrote:
> In C or C++, I can do this for integer conversion:
>
> unsigned int j = -327681234; // Notice this is signed.
>
> j will equal 3967286062. I thought with Python that I could use struct
> to pack the signed int as an unsigned int, but that fail
On Tue, Feb 21, 2012 at 12:29 AM, Sheldon wrote:
> On Feb 21, 12:53 am, Steven D'Aprano +comp.lang.pyt...@pearwood.info> wrote:
>> On Mon, 20 Feb 2012 12:37:22 -0800, Sheldon wrote:
>> > Hi,
>>
>> > I'm trying to read a netCDF4 variable from a file (no problem) and then
>> > scale it before writi
On Wed, Feb 22, 2012 at 10:13 AM, Alec Taylor wrote:
> Simple mathematical problem, + and - only:
>
1800.00-1041.00-555.74+530.74-794.95
> -60.9500045
>
> That's wrong.
Welcome to the world of finite-precision binary floating-point
arithmetic then! Reality bites.
> Proof
> http://ww
On Thu, Feb 23, 2012 at 1:26 AM, Nav wrote:
> Hi Guys,
>
> I have a custom user form class, it inherits my own custom Form class:
>
> class UserForm(Form):
> first_name = TextField(attributes={id='id_firstname'})
>
> Now, everytime UserForm() is instantiated it saves the attributes of
> each fo
On Thu, Feb 23, 2012 at 11:11 AM, Colin Higwell
wrote:
> $ cd /usr/bin
> $ ls -l python*
> -rwxr-xr-x 2 root root 9496 Oct 27 02:42 python
> lrwxrwxrwx 1 root root 6 Oct 29 19:34 python2 -> python
> -rwxr-xr-x 2 root root 9496 Oct 27 02:42 python2.7
> $ diff -s python python2.7
> Files python
On Thu, Feb 23, 2012 at 1:19 PM, Buck Golemon wrote:
> I feel like the design of sum() is inconsistent with other language
> features of python. Often python doesn't require a specific type, only
> that the type implement certain methods.
>
> Given a class that implements __add__ why should sum()
On Thu, Feb 23, 2012 at 9:55 PM, xixiliguo wrote:
> c = [1, 2, 3, 4, 5]
> class TEST():
> c = [5, 2, 3, 4, 5]
That line creates a class (i.e. "static") variable, which is unlikely
to be what you want. Instance variables are normally created in the
body of an __init__() method.
> def add( s
On Fri, Feb 24, 2012 at 12:41 AM, Jaroslav Dobrek
wrote:
> Hello,
>
> when I have Python subtract floating point numbers it yields weird
> results. Example:
>
> 4822.40 - 4785.52 = 36.87992
>
> Why doesn't Python simply yield the correct result? It doesn't have a
> problem with this:
>
> 4
On Fri, Feb 24, 2012 at 2:16 PM, Rodrick Brown wrote:
> I have a bunch of sub routines that run independently to perform various
> system checks on my servers. I wanted to get an opinion on the following code
> I have about 25 independent checks and I'm adding the ability to disable
> certain c
On Sun, Feb 26, 2012 at 3:25 AM, Smiley 4321 wrote:
> If I have a sample python code to be executed on Linux. How should I handle
> multiple objects with 'pickle' as below -
>
> ---
> #!/usr/bin/python
>
> import pickle
>
> #my_list = {'a': 'Apple', 'b': 'Mango', 'c': 'Orange', 'd': 'Pineappl
On Sun, Feb 26, 2012 at 11:24 PM, John Salerno wrote:
> Hi everyone. I created a custom class and had it inherit from the
> "dict" class, and then I have an __init__ method like this:
>
> def __init__(self):
> self = create()
>
> The create function creates and returns a dictionary object.
On Tue, Feb 28, 2012 at 10:33 AM, Mihai Badoiu wrote:
> I'm trying to compute the total CPU load of an external process and it's
> children. (so I cannot use resource.getrusage) For the load of the process
> I can just grab it from /proc/X/stat. How do I get the CPU load of the
> children proce
On Wed, Feb 29, 2012 at 5:52 AM, Johann Spies wrote:
> I understand the following:
>
> In [79]: instansie
> instansie
> Out[79]: 'Mangosuthu Technikon'
>
> In [80]: t = [x.alt_name for x in lys]
> t = [x.alt_name for x in lys]
>
> In [81]: t
> t
> Out[81]: []
>
> In [82]: t.append(instansie)
> t.a
On Wed, Feb 29, 2012 at 7:56 PM, Peter Rubenstein
wrote:
> Hi,
>
> I'd appreciate a bit of help on this problem. I have some data that I've
> converted to a dict and I want to pull out individual pieces of it.
>
> Simplified version--
>
> a={'1':'a', '2':'b', '3':{4:'d'}, '5':{'6': {'7': [ {'8':'
On Thu, Mar 1, 2012 at 8:55 PM, Alec Taylor wrote:
> What would you recommend I use to compare data-structures and
> algorithms on space and time? (runtime)
For the latter metric, one of the profiling modules:
http://docs.python.org/library/debug.html
I'd start with timeit and go from there:
http
On Thu, Mar 1, 2012 at 10:00 PM, John Salerno wrote:
> This is purely for fun and learning, so I know there are probably better ways
> of creating a chess program. Right now I'm just curious about my specific
> question, but I'd love to hear any other advice as well.
>
> Basically, I'm wondering
On Thu, Mar 1, 2012 at 11:16 PM, John Salerno wrote:
>> That's just a coincidence. Your supercall is ought to be: super().move()
>> In contrast, super().move(self) calls the superclass instance method
>> `move` with 2 arguments, both `self`, which just happens to work given
>> your move() method,
On Fri, Mar 2, 2012 at 10:52 AM, shikha panghal
wrote:
> Hi
>
> Please decoplile the .pyc code ,as i have lost my .py code.
Your best shot would be:
http://www.crazy-compilers.com/decompyle/
Cheers,
Chris
--
http://mail.python.org/mailman/listinfo/python-list
On Fri, Mar 2, 2012 at 12:09 PM, Sean Cavanaugh (scavanau)
wrote:
> THE PROBLEM:
>
> When I execute the scripts from the command line (#python main.py) it
> generates it fine (albeit slowly), it prints all the html code out including
> the script. The ‘core’ part of the script dumbed down to the
On Sat, Mar 3, 2012 at 9:38 PM, Damjan Georgievski wrote:
> How can I get the *really* original command line that started my python
> interpreter?
>
> Werkzeug has a WSGI server which reloads itself when files are changed
> on disk. It uses `args = [sys.executable] + sys.argv` to kind of
> recreat
On Sat, Mar 3, 2012 at 9:48 PM, Chris Rebert wrote:
> On Sat, Mar 3, 2012 at 9:38 PM, Damjan Georgievski wrote:
>> How can I get the *really* original command line that started my python
>> interpreter?
> On Linux, you can read from:
> /proc//cmdline
> to get the null
On Sun, Mar 4, 2012 at 3:07 PM, John Salerno wrote:
> I'm trying to get Notepad++ to launch IDLE and run the currently open file in
> IDLE, but all my attempts have failed so far. I'm wondering, am I even using
> the IDLE path correctly? I'm using this:
>
> "C:\Python32\Lib\idlelib\idle.pyw" "$(
On Sun, Mar 4, 2012 at 7:51 PM, John Salerno wrote:
> Unfortunately neither method worked. Adding "-r" to the path created this
> error when I tried it:
>
> *** Error in script or command!
>
> Traceback (most recent call last):
> File "C:\Users\John\Documents\Python Scripts\chess_pieces.py"
On Tue, Mar 6, 2012 at 2:43 PM, John Salerno wrote:
> I sort of have to work with what the website gives me (as you'll see below),
> but today I encountered an exception to my RE. Let me just give all the
> specific information first. The point of my script is to go to the specified
> URL and e
On Wed, Mar 7, 2012 at 1:02 PM, Shane Neeley wrote:
> What do I need to do to successfully install a package onto python so that I
> can use it as a module?
>
> I have tried in terminal in the correct directory "python2.7 ./setup.py
> install" but it says permission denied.
>
> Shanes-MacBook-Pr
On Sun, Mar 11, 2012 at 3:18 AM, hyperboogie wrote:
> thank you everyone...
> Still things are not working as expected... what am I doing wrong?
> # cat test.py
> #!/usr/bin/python
>
> class A():
You should be subclassing `object`, but that's a minor point which
isn't the cause of your problem.
On Sun, Mar 11, 2012 at 3:56 AM, hyperboogie wrote:
> On Sunday, March 11, 2012 12:38:27 PM UTC+2, Chris Rebert wrote:
>> On Sun, Mar 11, 2012 at 3:18 AM, hyperboogie wrote:
>>
>> > thank you everyone...
>> > Still things are not working as expected... what
On Sun, Mar 11, 2012 at 1:37 PM, Irmen de Jong wrote:
> On 11-3-2012 20:04, bvdp wrote:
>> Which is preferred in a raise: X or X()? I've seen both. In my specific case
>> I'm dumping out of a deep loop:
>>
>> try:
>> for ...
>> for ...
>> for ...
>> if match:
>> rai
On Tue, Mar 13, 2012 at 1:35 PM, Robert Kern wrote:
> On 3/13/12 6:01 PM, ferreirafm wrote:
>> Robert Kern-2 wrote
>>> When you report a problem, you should copy-and-paste the output that you
>>> got and
>>> also state the output that you expected. I have no idea what you mean
>>> when
>>> you
>>>
On Wed, Mar 14, 2012 at 11:41 AM, Darrel Grant wrote:
> In the virtualenv example bootstrap code, a global join function is used.
>
> http://pypi.python.org/pypi/virtualenv
>
> subprocess.call([join(home_dir, 'bin', 'easy_install'),
> 'BlogApplication'])
>
>
> In interpeter,
On Thu, Mar 15, 2012 at 7:23 PM, choi2k wrote:
> Hi, everyone
>
> I am trying to write a small application using python but I am not
> sure whether it is possible to do so..
> The application aims to simulate user activity including visit a
> website and perform some interactive actions (click on
On Fri, Mar 16, 2012 at 1:57 PM, Serhiy Storchaka wrote:
> 16.03.12 18:45, Steven D'Aprano написав(ла):
>> If f is a function which normally takes (for the sake of the argument)
>> one argument, then f would call the function with no arguments (which may
>> return a curried function, or may apply
On Fri, Mar 16, 2012 at 10:30 PM, Cosmia Luna wrote:
> I'm porting my existing work to Python 3.X, but...
>
> class Foo:
> def bar(self):
> pass
>
> mthd = Foo.bar
>
> assert mthd.im_class is Foo # this does not work in py3k
>
> So, how can I get a reference to Foo? This is important whe
On Sun, Mar 18, 2012 at 8:15 PM, alex23 wrote:
> John Ladasky wrote:
>> > The idea that Python code has to be obvious to non-programmers is an
>> > incorrect and dangerous one.
>>
>> Incorrect? Probably. Dangerous? You'll have to explain what you
>> mean.
>
> The classic "obvious" behaviour to
On Sun, Mar 18, 2012 at 11:30 PM, yan xianming wrote:
> Hello all,
>
> I'm a new learning of Python.
>
> Can someone give me some suggestion about it?
http://docs.python.org/tutorial/index.html
http://wiki.python.org/moin/BeginnersGuide/NonProgrammers
http://wiki.python.org/moin/BeginnersGuide/Pr
On Tue, Mar 20, 2012 at 11:52 PM, Steve Howell wrote:
> On Mar 20, 10:40 pm, Chris Angelico wrote:
>> On Wed, Mar 21, 2012 at 3:58 PM, Steve Howell wrote:
>> > So saying "push(stack, item)" or "push(item, stack)" seems very
>> > unsophisticated, almost assembly-like in syntax, albeit at a higher
On Wed, Mar 21, 2012 at 8:25 AM, Rod Person wrote:
> The question is there a way I can do this with out having to import
> constants when what it's doing is importing itself. It would seem to me
> that there should be a way for a module to reference itself. In that
> thinking I have tried
>
> if
On Wed, Mar 21, 2012 at 12:30 PM, John Gordon wrote:
> I'm writing an application that interacts with ldap, and I'm looking
> for advice on how to handle the connection. Specifically, how to
> close the ldap connection when the application is done.
>
> I wrote a class to wrap an LDAP connection,
On Thu, Mar 22, 2012 at 3:51 AM, Steven Lehar wrote:
> It seems to me that the Python class system is needlessly confusing. Am I
> missing something?
Explicit `self` is slightly annoying, but you'll get over it quickly (trust me).
> For example in the class Complex given in the documentation
>
>
On Thu, Mar 22, 2012 at 4:33 AM, Sangeet wrote:
> Hi
>
> I am new to the python programming language.
>
> I've been trying to write a script that would access the last modified file
> in one of my directories. I'm using Win XP.
>
> I saw a similar topic, on the forum before, however the reply usi
On Thu, Mar 22, 2012 at 6:14 AM, Tycho Andersen wrote:
> On Wed, Mar 21, 2012 at 04:49:54PM -0500, Tim Chase wrote:
>> On 03/21/12 15:54, Chris Kaynor wrote:
>> >As Chris Rebert pointed out, there is no guarantee as to when the
>> >__del__ method is called. CPy
On Fri, Mar 23, 2012 at 9:16 AM, Yves S. Garret
wrote:
> Oooops! Sent my previous e-mail too soon! Didn't mean to.
>
> Another try.
>
> Hello,
>
> I'm trying to brush up on my Python and would like to learn how to
> make web-apps. I was hoping to get a good book on learning how to
> make web-
On Fri, Mar 23, 2012 at 10:13 AM, Dennis Lee Bieber
wrote:
> On Fri, 23 Mar 2012 09:30:24 -0700, Chris Rebert
> declaimed the following in gmane.comp.python.general:
>
>> On Fri, Mar 23, 2012 at 9:16 AM, Yves S. Garret
>> wrote:
>
>> > make web-applica
On Fri, Mar 30, 2012 at 11:22 PM, Yingjie Lan wrote:
> Hi all,
>
> I'd really like to share this idea of string interpolation for formatting.
> Let's start with some code:
>
name = "Shrek"
print( "Hi, $name$!")
> Hi, Shrek!
Python already has *3* different built-in string
formatting/int
On Sat, Mar 31, 2012 at 12:42 AM, Frederic Rentsch
wrote:
> If I run from a terminal things seem to work out. Is it standard
> development practice to run code from a terminals ($ python program.py)?
> What's the 'program.pyc' for if the source is compiled every time?
The entire point of .pyc
On Mon, Apr 2, 2012 at 2:11 AM, Yingjie Lan wrote:
> I believe non of the other three alternatives are as terse and readable.
> We've got template based, formatting with dict, formatting with tuple.
> They all require the coder extra effort:
>
> Both template based and dict-based formatting requi
On Mon, Apr 2, 2012 at 5:14 PM, Andres Soto wrote:
> Hi
> I am trying to draw a step (or staircase) function. My points are all
> integers. I would like that the grid lines help to identify the limits of
> each line, but when I draw the grid, it is set each 5 units.
> How can I draw the grid lines
On Thu, Apr 5, 2012 at 1:52 PM, Jabba Laci wrote:
> Hi,
>
> Unix's date command produces this output (example):
>
> Thu Apr 5 22:49:42 CEST 2012
>
> I would like to produce the same output with Python, without calling
> "date" externally. Before doing it I'd like to ask the list if anyone
> has a
On Thu, Apr 5, 2012 at 11:57 PM, wrote:
> Okay, I've been trying for days to figure this out, posting on forums,
> Googling, whatever. I have yet to find a solution that has worked for me.
> (I'm using Python 3.2.2, Ubuntu 11.04.) Everything I've tried has led to
> buffered output being spat b
On Sat, Apr 7, 2012 at 2:15 PM, KRB wrote:
> Hi there,
>
> I would like to be able to pass a list of variables to a procedure, and have
> the output assigned to them.
You cannot pass a variable itself to a function; you can only pass a
variable's value. Which is to say that Python doesn't use
pa
On Mon, Apr 9, 2012 at 4:53 AM, Kiuhnm
wrote:
> Is it a known fact that ast.parse doesn't handle line continuations and some
> multi-line expressions?
> For instance, he doesn't like
> for (x,
> y) in each([1,
> 2]):
> print(1)
> at all.
> Is there a workaroun
On Mon, Apr 16, 2012 at 12:06 PM, Chinesekidz
wrote:
> Hello Guys:
>
> How can I stop the program as soon as one of the condition is met?
>
>
> Here is example:
>
> The loop should be stop asking for more input if a=b or c=6.
>
> I tried to write one but it only stop when a=b and not when c=6
Ple
On Wed, Apr 18, 2012 at 6:35 AM, Richard Shea wrote:
> On a *nix box this is a reasonable bit of Python :
>
> cmd = "ssh -o StrictHostKeyChecking=no -i %s %s@%s '%s' > %s" % (key,
> user, dns, "echo CONNECTION READY", tmp_file)
> result = os.system(cmd)
It's slightly less reasonable considering t
On Sun, Apr 22, 2012 at 11:16 PM, Anirudh Srinivasan
wrote:
>
> My code lists the files and directory under a folder and if we want to
> read the file it uses the function cat.
>
> But the function cat(get_file) is not working , any suggetions?
Please specifically state exactly how it's deviatin
On Mon, Apr 23, 2012 at 11:29 AM, Julio Sergio wrote:
> I want to use the sign function. When I use it in in-line mode works pretty
> well:
>
> : sign(-20)
> : -1
>
> However, I wrote the following code in a file, say, pp.py
>
> def tst(x):
> s = sign(x)
> return(s)
>
> Then I tried to i
On Thu, Apr 26, 2012 at 10:02 AM, Roy Smith wrote:
> I'm not seriously suggesting this as a language addition, just an interesting
> idea to simplify some code I'm writing now:
>
> x = [a for a in iterable while a]
>
> which equates to:
>
> x = []
> for a in iterable:
> if not a:
> brea
On Sat, Apr 28, 2012 at 11:09 AM, wrote:
> I'm just learning Python. The python doc about mutable and hashable is
> confusing to me.
>
> In my understanding, there is no directly relation between mutable and
> hashable in Python. Any class with __hash__ function is "hashable".
>
> According the
On Sun, Apr 29, 2012 at 10:18 AM, Andres Soto wrote:
> I have already
import string
from string import *
> but I can not still convert an integer to string
There is no need to import the `string` module to do that. Most of the
`string` module is deprecated.
`str` is the *built-in* type
On Mon, Apr 30, 2012 at 8:19 AM, wrote:
> Hi,
>
> I would like to automate the following task under Linux. I need to create a
> set of directories such as
>
> 075
> 095
> 100
> 125
>
> The directory names may be read from a text file foobar, which also contains
> a number corresponding to each
On Wed, May 2, 2012 at 7:49 AM, Nikhil Verma wrote:
> def __unicode__(self):
> return "%s %s" % (self.name, self.date_created.strftime("%A %B %d"))
>
>
> The user fills Gen GI in name and date along with time.
>
> What i am able to achieve with this class object to return is :-
>
> Ge
On Sun, May 6, 2012 at 9:29 AM, J. Mwebaze wrote:
> sorry see, corrected code
>
>
> for filename in txtfiles:
> temp=[]
> f=open(filename)
Why not use `with` here too?
> for line in f.readlines():
readlines() reads *the entire file contents* into memory all at once!
Use `for line in f:
On Sun, May 6, 2012 at 4:54 PM, Cameron Simpson wrote:
> On 06May2012 18:36, J. Mwebaze wrote:
> | > for filename in txtfiles:
> | > temp=[]
> | > f=open(filename)
> | > for line in f.readlines():
> | > line = line.strip()
> | > line=line.split()
> | > temp.append((parser.
On Mon, May 7, 2012 at 8:15 PM, Charles Hixson
wrote:
> class Node:
>
> def __init__(self, nodeId, key, value, downRight, downLeft, parent):
> dirty = True
> dlu = utcnow()
> self.node = [nodeId, downLeft, [key], [value], [downRight],
> parent, dirty, d
On Tue, May 8, 2012 at 1:05 PM, John Gordon wrote:
> I'm trying to come up with a scheme for organizing exceptions in
> my application.
>
> Currently, I'm using a base class which knows how to look up the text
> of a specific error in a database table, keyed on the error class name.
>
> The base c
On Wed, May 9, 2012 at 8:35 AM, Florian Lindner wrote:
> Hello,
>
> how can I achieve a behavior like tee in Python?
>
> * execute an application
> * leave the output to stdout and stderr untouched
> * but capture both and save it to a file (resp. file-like object)
>
> I have this code
>
> proc =
On Sun, May 13, 2012 at 12:11 PM, Bob Grommes wrote:
> Noob alert: writing my first Python class library.
>
> I have a straightforward class called Utility that lives in Utility.py.
>
> I'm trying to get a handle on best practices for fleshing out a library. As
> such, I've done the following fo
On Wed, May 16, 2012 at 7:59 AM, ytj wrote:
> Hello, all:
>
> I have two programs, one is written in py3k, the other is written in
> python 2. I am wondering how to make them work together except port
> the python 2 code to py3k?
Porting the Python 3 code to Python 2 is also an option:
http://pyp
On Wed, May 16, 2012 at 6:45 PM, gwhite wrote:
> Hi,
>
> I am a newbie running the latest pythonxy (2.7.2.1) & spyder and
> python 2.7.2. I suspect my questions are mostly basic to python, and
> not specific to Spyder or iPython.
>
> Note: Up until now, I mainly used MATLAB, and thus need to de-
On Wed, May 16, 2012 at 7:16 PM, Rita wrote:
> Hello,
>
> I currently build a lot of interfaces/wrappers to other applications using
> bash/shell. One short coming for it is it lacks a good method to handle
> arguments so I switched to python a while ago to use 'argparse' module. Its
> a great com
On Fri, May 18, 2012 at 2:53 PM, Ron Eggler wrote:
> Hoi,
>
> I'm trying to connect to a serial port and always get the error
> "serial.serialutil.SerialException: Port is already open." whcih is untrue.
> I have no serial port open yet, my code looks like this:
> #!/usr/bin/python
> import time
>
On Thu, May 24, 2012 at 6:23 PM, SherjilOzair wrote:
> def adder():
> s = 0
> def a(x):
Add a "nonlocal s" declaration right here.
See http://www.python.org/dev/peps/pep-3104/
> s += x
> return sum
> return a
>
> pos, neg = adder(), adder()
> for i in r
On Wed, May 30, 2012 at 9:40 AM, Steven D'Aprano
wrote:
> On Wed, 30 May 2012 09:01:20 -0700, psaff...@googlemail.com wrote:
>
>> However, I've found that using guppy, after the methods have returned
>> most of the memory is being taken up with BeautifulSoup objects of one
>> type or another. I'm
On Fri, Jun 1, 2012 at 9:39 AM, Josh Benner wrote:
>
> Is there a good way to trace what's going on under the hood wrt operator
> overloading?
>
> I am trying to understand what is happening in the code and output listed
> below.
>
> Why doesn't __getitem__ in mylist return the same result as the
On Sun, Jun 3, 2012 at 9:04 PM, Janet Heath
wrote:
> checking for --with-python... no
> checking for python... /usr/bin/python
> checking Python interpreter... /usr/bin/python
> checking Python version... 2.7.1
> checking Python's email package... ok
> checking Japanese codecs... ok
> checking Kor
On Mon, Jun 4, 2012 at 6:21 PM, FSH wrote:
> Hello,
>
> I have a simple question. I wish to generate an array of file
> pointers. For example, I have files:
>
> data1.txt
> data2.txt
> data3.txt
>
>
> I wish to generate fine pointer array so that I can read the files at
> the same time.
>
> f
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