Re: PIL issues
On 8/1/06, David Bear <[EMAIL PROTECTED]> wrote: > I am trying to use PIL and when building it, PIL fails to find my jpeg > library. I am using a python 2.4.3 that I build myself on Suse linux 9.3. I > do have the following jpeg libraries: > > rpm -qa | grep jpeg > jpeg-6b-738 > libjpeg-32bit-9.3-7 > libjpeg-6.2.0-738 > > > yet, when building PIL I get: > > python setup.py build_ext -i > running build_ext > > PIL 1.1.5 BUILD SUMMARY > > version 1.1.5 > platform linux2 2.4.2 (#4, Jul 27 2006, 14:34:30) > [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] > > *** TKINTER support not available > *** JPEG support not available > --- ZLIB (PNG/ZIP) support ok > *** FREETYPE2 support not available > > To add a missing option, make sure you have the required > library, and set the corresponding ROOT variable in the > setup.py script. > > I don't know what ROOT variable the message is referring too. Any advice > would be appreciated. This is because PIL, is not able to find the jpeg/other libraries . 1. Install jpeg-libs from sources: (http://www.ijg.org/files/jpegsrc.v6b.tar.gz) 2.0: "clean" the PIL build 2.1 In setup.py that comes with PIL, set the JPEG_ROOT to the jpeg-lib path 3.0 run setup.py I hope that should help .. cheers, amit -- Amit Khemka -- onyomo.com Home Page: www.cse.iitd.ernet.in/~csd00377 Endless the world's turn, endless the sun's Spinning, Endless the quest; I turn again, back to my own beginning, And here, find rest. -- http://mail.python.org/mailman/listinfo/python-list
Re: realine not found error
David Bear wrote: > I built python 2.4.2 for suse linux 9.3. I configured it to be a separate > instance of python from the version packaged with suse. > > Now when I start it I get an error: > python > Python 2.4.2 (#4, Jul 27 2006, 14:34:30) > [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > Traceback (most recent call last): > File "/etc/pythonstart", line 7, in ? > import readline > ImportError: No module named readline > > however, I do have readline installed: > > rpm -qa | grep readline > readline-5.0-7.2 > readline-32bit-9.3-7.1 You may have to install the readline-devel package and the rebuild Python. Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: Quest for the Holy Grail (a PyGame game)
I'll be out of the office until approximately August 20th. If you have any questions, please email [EMAIL PROTECTED] -- David Wahler -- http://mail.python.org/mailman/listinfo/python-list
Re: Wing IDE 2.1.1 released
I'll be out of the office until approximately August 20th. If you have any questions, please email [EMAIL PROTECTED] -- David Wahler -- http://mail.python.org/mailman/listinfo/python-list
Re: ANN: Quest for the Holy Grail (a PyGame game)
very nice game, i like it. -Horst -- http://mail.python.org/mailman/listinfo/python-list
Re: code to retrieve web mail?
"John Savage" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > I have a free web mail address and would like to use python to retrieve > files that have been emailed to me. The basic code would accommodate > cookies, a login name and password, then download using the full URL I > can provide. From postings here I thought mechanize held promise, but > I've found it to contain filenames that are invalid for MSDOS (too many > characters, and/or too many dots in the name, etc.) so I have little hope > that the mechanize module can be used. > > I'm running python2.4.2 on plain MSDOS (not windows), so would appreciate > a pointer to sample code that can do the job. I know that curl has this > capability, but I'll learn something by tinkering with python code. > > Thanks. > -- > John Savage (my news address is not valid for email) Instead of mimicking a browser to access this e-mail account through the web interface, see if there is a POP3 access to your free e-mail (I'd be surprised if there isn't). POP3 programming (using the supplied poplib module) is *very* simple in Python, handles login name and pwd, no cookie-ing required. The Python docs include this example: http://docs.python.org/lib/pop3-example.html -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Pickle vs XML for file I/O
In <[EMAIL PROTECTED]>, crystalattice wrote: > On Mon, 31 Jul 2006 14:35:39 -1000, Simon Forman <[EMAIL PROTECTED]> > wrote: > >> What kind of trouble were you having with pickle? > > It's mostly a combination of things (I hope you can follow my logic). > First, to use "good programming practice", I want to implement a > try/except block for opening the pickle file. But I can't figure out if > this block should be included outside the classes, included in just the > base class, or if the base and subclasses need it; I'm leaning to putting > outside the classes as a global method. That's not a problem with pickle but where you think a potential IO error is handled best. Ask yourself if you can do something sensible at the point where you catch an exception. If you don't know what to do with it, don't catch it and just let it propagate. > When pickling a class instance, is the pickle statement placed within the > class (say, at the end of the class) or is it where the instance is > created, such as a test() method? `pickle.dump()` and `pickle.load()` are not statements but just functions. And you should place a call where you actually want to save or load instances in your program flow. > Plus, to modify data in a class, do I have to unpickle the whole thing > first or is there a way to modify the data while it's pickled? Actually, > I think I can answer that last question: a character instance, having > been created, will stay resident in memory until the player quits, > character dies, or otherwise is no longer needed. At that point the > character instance should be pickled (if necessary) to disk; pickle > shouldn't be used while data modification is required and the class > instance is "active", correct? Yes that's correct. It wouldn't be different with XML. > I also remember reading on a thread here that pickle sometimes has issues > when used with classes, which makes me hesitant to pickle an entire class > instance. That's why I thought XML may be safer/better. You can't pickle everything. Files for example are unpickleable and you can't pickle code so pickling classes is not that useful. An advantage of `pickle` is that it's in the standard library and ready to use for serialization. To get an XML solution you must either write your own serialization code or use a 3rd party library. What are the problems you fear when using `shelve` by the way? Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
[EMAIL PROTECTED] wrote: > John Machin wrote: > > [EMAIL PROTECTED] wrote: > > > Philippe Martin wrote: > > > > Yes, I came here for the "algorithm" question, not the code result. > > > > > > To turn BCD x to binary integer y, > > > > > > set y to zero > > > for each nibble n of x: > > > y = (((y shifted left 2) + y) shifted left 1) + n > > > > Yeah yeah yeah > > i.e. y = y * 10 + n > > he's been shown that already. > > > > Problem is that the OP needs an 8-decimal-digit (32-bits) answer, but > > steadfastly maintains that he doesn't "have access to" long (32-bit) > > arithmetic in his C compiler!!! > > And he doesn't need one. He might need the algorithms for shift and > add. > I hate to impose this enormous burden on you but you may wish to read the whole thread. He was given those "algorithms". He then upped the ante to 24 decimal digits and moved the goalposts to some chip running a cut-down version of Java ... TTFN John -- http://mail.python.org/mailman/listinfo/python-list
Re: Pickle vs XML for file I/O
crystalattice wrote: > > Plus, to modify data in a class I presume the word "instance" is missing here ... > do I have to unpickle the whole thing > first or is there a way to modify the data while it's pickled? Actually, > I think I can answer that last question: a character instance, having > been created, will stay resident in memory until the player quits, > character dies, or otherwise is no longer needed. At that point the > character instance should be pickled (if necessary) to disk; pickle > shouldn't be used while data modification is required and the class > instance is "active", correct? A pickle is a snapshot of an object and its contents. If the real scenery changes, you need to take another photo. Unpickling creates another instance from the blueprint. You can repeat this to obtain multiple distinct copies of the instance. Partial unpickling is not possible. Use cPickle if you can; it's much faster. HTH, John -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
John Machin wrote: > [EMAIL PROTECTED] wrote: > > Philippe Martin wrote: > > > Yes, I came here for the "algorithm" question, not the code result. > > > > To turn BCD x to binary integer y, > > > > set y to zero > > for each nibble n of x: > > y = (((y shifted left 2) + y) shifted left 1) + n > > Yeah yeah yeah > i.e. y = y * 10 + n > he's been shown that already. > > Problem is that the OP needs an 8-decimal-digit (32-bits) answer, but > steadfastly maintains that he doesn't "have access to" long (32-bit) > arithmetic in his C compiler!!! And he doesn't need one. He might need the algorithms for shift and add. -- --Bryan -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Grant Edwards wrote: > On 2006-08-01, Philippe Martin <[EMAIL PROTECTED]> wrote: > > >> Perhaps if Philippe could divulge the part number that's in > >> the bottom right corner of the manual that he has, and/or any > >> part number that might be mentioned in the first few pages of > >> that manual, enlightenment may ensue > > > > That was cute ... over and out ! > > Or perhaps it may not. > > Methinks it was all just a rather good troll. > > -- Now we have a few more questions i.e. apart from what CPU is in Phillipe's device: 1. WHO was Philippe replying to -- Simon or me? 2. WHAT was cute? 3. Grant thinks WHAT might have been a rather good troll by WHOM? Ah well never mind ... I think I'll just report the whole thread to thedailywtf and move on :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
I don't have experience with Django or any other python framework, but
I have used bare-bones mod_python and it rocks.
I wouldn't use PSP though...
It is not very polished, and they way it handles the "indentation
problem" in python is a little bit confussing.
IMHO the best way of using mod_python is with its publisher handler.
It let's you code your applications in a MVC (model view controller)
style.
This way you can cleanly separate presentation and logic, making your
code more concise, clear and mantainable.
With publisher, every function defined in your script represents a web
page in your site, and the html code can be moved to a template, that
could be PSP itself or Cheetah, for example (Cheetah is very good).
A very simple example:
#mysite.py
def index(req):
req.content_type = 'text/html'
req.write("""
""")
def printMyName(req, myname):
req.content_type = 'text/html'
req.write(myname)
# end of mysite.py
In this script, the function "index" is executed by default when you go
to http://yourserver/mysite.py, and it displays a text box and a submit
button.
(The first line indicates that the output will be in html format, and
"req.write" is equivalent to "print".)
If you enter your name and hit the submit button, your name is passed
to the "printMyName" function and printed in your browser's screen.
This way, both functions can be viewed like two separate pages within
your site.
So, with only one script, you can write a whole site if you want.
For more complex pages where html is used, you can place this
presentation code in templates, and then import them into your main
script.
Or else, you could simple use "req.write" to print your html directly
(as I did in "index").
Hope this helps...
Luis
northband wrote:
> Hi, I am interested in re-writing my website in Python vs PHP but have
> a few questions. Here are my specs, please advise as to which
> configuration would be best:
>
> 1.Dell Poweredge Server, w/IIS, currently Windows but considering
> FreeBSD
> 2. Site consists of result pages for auctions and items for sale (100
> per page)
> 3. MySQL (Dell Poweredge w/AMD) database server connected to my web
> server
> 4. Traffic, 30 million page loads/month
>
> I am trying to have the fastest page loads, averaging 100 items per
> result page. I have read about using Apache's mod_python so I could
> use PSP. Any help or tips are appreciated.
>
> -Adam
--
http://mail.python.org/mailman/listinfo/python-list
ANN: Quest for the Holy Grail (a PyGame game)
This game is doubly Pythonic -- it uses PyGame, and it's based on a Monty Python movie. It was originally an entry in the Pygame.draw challenge (http://media.pyweek.org/static/pygame.draw-0606.html). I've put a slightly enhanced and bugfixed version on my web page: http://www.cosc.canterbury.ac.nz/greg.ewing/grailquest/index.html It requires Python 2.3 or later and PyGame with SDL_image and SDL_ttf support. That's all! Comments, suggestions and amusing gameplay anecdotes are welcome. Have fun, -- Greg Ewing, Computer Science Dept, University of Canterbury, Christchurch, New Zealand http://www.cosc.canterbury.ac.nz/~greg -- http://mail.python.org/mailman/listinfo/python-list
Re: code to retrieve web mail?
On Tue, 2006-08-01 at 01:47 +, John Savage wrote: > I have a free web mail address and would like to use python to retrieve > files that have been emailed to me. The basic code would accommodate > cookies, a login name and password, then download using the full URL I > can provide. From postings here I thought mechanize held promise, but > I've found it to contain filenames that are invalid for MSDOS (too many > characters, and/or too many dots in the name, etc.) so I have little hope > that the mechanize module can be used. > > I'm running python2.4.2 on plain MSDOS (not windows), so would appreciate > a pointer to sample code that can do the job. I know that curl has this > capability, but I'll learn something by tinkering with python code. PyCurl certainly does have that capability, although the docs were practically non-existent last I looked (and I've not tried it on DOS). Still Google will help get you through it, along with the examples included with the package, and once it's working PyCurl does an outstanding job. You might take a look at Beautiful Soup for parsing the HTML once PyCurl has fetched it for you: http://www.crummy.com/software/BeautifulSoup/ Also, no matter what method you finally end up with, you'll undoubtedly need to mangle long filenames into 8.3 names, at least for attachments and the like. Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: How to catch python's STDOUT
[EMAIL PROTECTED] wrote:
> I dont want the outputs of print to be displayed on the console
> since it is used my fellow-workers
> But i need those prints for debugging purpose
import sys
sys.stdout = open("my_debugging_output.txt", "w")
Or you can replace sys.stdout with any object having
a write() method which does whatever you want with
the output.
You can similarly replace sys.stderr to capture
output written to standard error.
--
Greg Ewing, Computer Science Dept,
University of Canterbury,
Christchurch, New Zealand
http://www.cosc.canterbury.ac.nz/~greg
--
http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On Mon, 2006-07-31 at 21:57 -0300, Gerhard Fiedler wrote: > On 2006-07-31 18:23:17, Cliff Wells wrote: > > > My point is to stop FUD right at that comment. I don't doubt your > > research from "a few years ago", but ancient research is entirely > > irrelevant for making a decision *today*. > > That's exactly the reason why I added this information. It might not be for > you, but it is interesting for me (and might be for someone else) to see > that I get a different feedback now than I got a few years ago. It tells > something about the dynamic of the process that the mere status of today > doesn't tell. Well, perhaps I misunderstood your intent. Sorry if I was short. > Besides, "claimed to have" and "seemed to have" are not really FUD inducing > terms :) Taken in a vacuum, they can certainly add to an overall negative impression. PostgreSQL, in the past, has certainly had some hurdles that made it a suboptimal choice for many people: performance and difficulty in installation and management, among other things (I've personally not had stability issues), lack of a native Win32 version, etc, have made it the runner up in deployment to MySQL. Today, that's all changed. PostgreSQL is comparable in performance to MySQL (although I expect each outperforms the other in certain areas), *easier* to install and maintain than MySQL, and its stability is outstanding. Release 8 also saw a native Windows version. For many reasons, MySQL seems to be on the reverse track, sacrificing performance, stability and ease of use in an attempt to catch up to PostgreSQL in features. Nevertheless, there remains rumors and myths that stem from those old days that cause many people to fear deploying PostgreSQL. This is part of the reason I'm always quick to jump on statements such as yours. I feel it's a disservice to the community to let those myths continue and perhaps dissuade others from discovering what is today *the* premier FOSS relational database. > Anyway, I appreciate you sharing your experience (which in that area > certainly is more than mine). I'm glad I was able to add to the pool of knowledge (or at least the mud puddle of anecdote). Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Pickle vs XML for file I/O
On Mon, 31 Jul 2006 14:35:39 -1000, Simon Forman <[EMAIL PROTECTED]> wrote: > crystalattice wrote: >> I'm creating an RPG for experience and practice. I've finished a >> character creation module and I'm trying to figure out how to get the >> file I/O to work. >> >> I've read through the python newsgroup and it appears that shelve >> probably isn't the best option for various reasons. This lead me to >> try messing w/ pickle, but I can't figure out how to use it with >> classes. I've found many examples of using pickle w/ non-OOP code but >> nothing that shows how to use it w/ classes, subclasses, etc. I've >> read the documentation but it doesn't explain it well enough for me. >> >> Then I started thinking perhaps I'm going about it wrong. My current >> thought is to save an instance of each character so all the info (name, >> skills, hit points, etc.) is stored in one place. But looking at >> OpenRPG made me think that perhaps using XML to store the information >> would be better. Each character could have a separate XML file, though >> I don't know how it would work if many NPC's are required. >> >> I guess my question is, what are the benifits of getting pickle to work >> w/ my classes vs. converting all the character data into XML and just >> writing that to a file? Since most of the data would need to be >> modified often, e.g. hit points, is one storage format better than the >> other? Can you even modify data if it's been pickled w/o having to >> unpickle it, change the data, then repickle it? > > Um, there's nothing tricky to using pickle with classes: > > |>> import pickle > |>> class foo: pass > |>> f = foo() > |>> pstr = pickle.dumps(f) > |>> pstr > '(i__main__\nfoo\np0\n(dp1\nb.' > |>> newf = pickle.loads(pstr) > |>> newf > <__main__.foo instance at 0xb664690c> > > Pickle is simple and should work "out-of-the-box". I wouldn't mess > with XML until I was sure I needed it for something. > > What kind of trouble were you having with pickle? > > Peace, > ~Simon > It's mostly a combination of things (I hope you can follow my logic). First, to use "good programming practice", I want to implement a try/except block for opening the pickle file. But I can't figure out if this block should be included outside the classes, included in just the base class, or if the base and subclasses need it; I'm leaning to putting outside the classes as a global method. When pickling a class instance, is the pickle statement placed within the class (say, at the end of the class) or is it where the instance is created, such as a test() method? Do I even need to bother with having the try/except block and pickle statements in the character generation module or should I have a separate module that does the file I/O, such that it opens the new file, calls the character module and makes a new instance, then pickles it? Plus, to modify data in a class, do I have to unpickle the whole thing first or is there a way to modify the data while it's pickled? Actually, I think I can answer that last question: a character instance, having been created, will stay resident in memory until the player quits, character dies, or otherwise is no longer needed. At that point the character instance should be pickled (if necessary) to disk; pickle shouldn't be used while data modification is required and the class instance is "active", correct? I also remember reading on a thread here that pickle sometimes has issues when used with classes, which makes me hesitant to pickle an entire class instance. That's why I thought XML may be safer/better. -- Python-based online RPG in development based on the Colonial Marines from "Aliens": http://cmrpg.sourceforge.net Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ -- http://mail.python.org/mailman/listinfo/python-list
RE: Python-list Digest, Vol 35, Issue 6
This is an automated response. Thank you for contacting the Technical Support team at The MathWorks Ltd. A technical support representative will be contacting you within 1 business day. The following information will help us in responding to your request. If you have already provided the information requested below, no further action is required. 1) License number, release number, and operating system. Typing “ver” at the MATLAB command prompt will list this information. 2) Exact text of any error message(s) received 3) All files (M-files, Simulink models, data files) and steps to reproduce the issue. If you need to send in an executable or a zip file, please wait until a support engineer contacts you. To provide this information, reply to this message keeping the Thread Id listed at the bottom of this message intact. STUDENT VERSION USERS: If you are a student using the Student Version, please note that email and phone support is available for product installation, software crashes, or bug reporting. For all other enquiries, contact your lecturer or visit the support web site at http://www.mathworks.co.uk/support/. If you have any concerns about our technical support services, write to [EMAIL PROTECTED] Technical Support Team The MathWorks Ltd Email: [EMAIL PROTECTED] Tel: 01223 423200 Fax: 01223 423250 http://www.mathworks.co.uk/support [THREAD ID: 1-2ZI8BP] -Original Message- From: [EMAIL PROTECTED] Sent: 7/31/2006 11:46:55 PM To: [EMAIL PROTECTED] Subject: Python-list Digest, Vol 35, Issue 6 Send Python-list mailing list submissions to python-list@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/python-list or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Python-list digest..." -- http://mail.python.org/mailman/listinfo/python-list
Re: suppressing the console in a GUI program
John Salerno wrote: > Hi guys. I tried naming my file with a .pyw extension, but the console > still shows up. Why doesn't this work? And is there another, more > programmatic way to suppress it? > > Thanks. I just noticed that the console that opens isn't the normal one, it's IPython. Now how would I suppress that one as well? Again, any way to do it in the program, or is that not a good idea for when it gets ported to another platform? -- http://mail.python.org/mailman/listinfo/python-list
suppressing the console in a GUI program
Hi guys. I tried naming my file with a .pyw extension, but the console still shows up. Why doesn't this work? And is there another, more programmatic way to suppress it? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
On 2006-08-01, Philippe Martin <[EMAIL PROTECTED]> wrote: >> Perhaps if Philippe could divulge the part number that's in >> the bottom right corner of the manual that he has, and/or any >> part number that might be mentioned in the first few pages of >> that manual, enlightenment may ensue > > That was cute ... over and out ! Or perhaps it may not. Methinks it was all just a rather good troll. -- Grant Edwards grante Yow! Where's the Coke at machine? Tell me a joke!! visi.com -- http://mail.python.org/mailman/listinfo/python-list
Re: FOR LOOPS
OriginalBrownster wrote:
> I am using a class called UploadedFile.
> I want to create a for loop to itterate through the objects within file
> name
>
> class UploadedFile(SQLObject):
> filename = StringCol(alternateID=True)
> abspath = StringCol()
> uniqueid = IntCol()
>
> I'll show you a snippit of the code I am trying to use it in::
>
>
> zip= ["zip.txt"]
> file_path = [myfile.filename for myfile in
> UploadedFile.select(orderBy=UploadedFile.q.filename)]
>
> if kw:
> for filename in file_path:
> zip.append(filename)
> flash('Options selected'+ str(kw) + str(zip))
> else:
> pass
>
> When i run this the flash displays all the values for kw...however zip
> only shows up as "zip.txt" using the str function. Meaning that the FOR
> LOOP is not working correctly.
>
> Any ideas why this is happening?? perhaps someone could shoe me how to
> make a proper list for this if this is incorrect.
>
> Thank you
I'm not really familiar with SQLObject, but are you sure file_path is
not empty?
Also, a few small comments:
1. zip is a builtin function. I would choose a different name, even
though this is not strictly necessary.
2. You can accomplish what you seem to be intending with your loop
using list.extend.
3. That's an interesting thing to put in an else case. Why did you do
it that way instead of just leaving it out?
--
http://mail.python.org/mailman/listinfo/python-list
Re: readline not found error
David Bear wrote: > okay. Since I grabbed the python tar file from python.org, do I then assume > that readline is not included in the python source distribution? if so, > where would I find it. If not, what different build instructions do I need > to follow to make it build with readline? Oops. Sorry, I missed that part of what you said. Use $ ./configure --enable-readline -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
FOR LOOPS
I am using a class called UploadedFile.
I want to create a for loop to itterate through the objects within file
name
class UploadedFile(SQLObject):
filename = StringCol(alternateID=True)
abspath = StringCol()
uniqueid = IntCol()
I'll show you a snippit of the code I am trying to use it in::
zip= ["zip.txt"]
file_path = [myfile.filename for myfile in
UploadedFile.select(orderBy=UploadedFile.q.filename)]
if kw:
for filename in file_path:
zip.append(filename)
flash('Options selected'+ str(kw) + str(zip))
else:
pass
When i run this the flash displays all the values for kw...however zip
only shows up as "zip.txt" using the str function. Meaning that the FOR
LOOP is not working correctly.
Any ideas why this is happening?? perhaps someone could shoe me how to
make a proper list for this if this is incorrect.
Thank you
--
http://mail.python.org/mailman/listinfo/python-list
Re: Nested function scope problem
Gerhard Fiedler wrote:
> On 2006-07-30 09:54:14, Antoon Pardon wrote:
>
> > Aren't you looking too much at implementation details now?
>
> Possibly, but at this point I'm still trying to understand how Python does
> these things, and what the useful abstraction level is for me. I also still
> have very little experience how I'll put the things we've been discussing
Sorry I've been away from this sub-thread for a while (even though I
kinda started it :P). Yes, I'm also wondering what difference this big
huge argument makes on how I logically follow Python.
Personally, I find this metaphor in "Head First Java" from O'Reilly
Press really helpful for both Python and Java. Before anyone sends me a
letter bomb that says "Python != Java", let me say this: have phun :P.
Anyway, the metaphor goes something like this: variables (for objects,
not primitives) are like cups (just wait, it gets better). You can put
a remote control IN a cup. The remote control controls a "real" object
on the heap (ie, the data for the object is there).
Unfortunately, some of the effect of the metaphor is lost because I
cannot reporduce the very nice illustrations which came in the book :P.
Other than the fact that you declare variables in Java (going down
another letter-bomb-laden slippery slope), which means they stick
around even when they have no "remote controls", I pretty much think of
Python variables the same way: each variable LOGICALLY contains a
reference (ie, without regard to what the mechanics are) to some
amorphous glob of data, sitting on the heap. Therefore, when I do an
assignment, I am simply replacing the reference my variable is holding.
According to the metaphor, we are replacing the remote control our cup
is holding.
If an object is no longer visible (because all the references have
disappeared), then it should get garbage collected eventually. But
until the magical garbage-collecting angle of death makes is way
through the heap, our orphaned objects are PHYSICALLY still there until
they are forcefully evicted from memory. Logically, however, they were
gone as soon as we lost sight of them.
Java aside, My question is this: how will using this metaphor break the
way I logically follow Python?
> here into (Python) practice. While not new to programming, I'm new to
> Python.
>
> > AFAIU, one can also build a C++ class hierarchy that with some small
> > limitations in used operators, would have semantics very similar to
> > Python. Would you argue that those using such a C++ class hierarchy would
> > no longer be using variables in C++?
>
> Probably not. But for me it's mostly about useful terminology, not
> necessarily "correct" terminology. In order to talk about correct
> terminology, we'd have to use a common definition of "variable". This is a
> term so widely used that I'm not sure there is a useful single definition
> of it; do you know one?
This is another thing I was thinking the entire time I was reading this
argument, but I didn't want someone to answer me in a condescending
tone on what exactly a variable IS. I guess I should attribute that
quote to Bill Clinton :P.
>
> In any case, the following doesn't seem to be implementation detail (and
> rather a part of the language), but it's not really understandable with a
> C++ concept of "variable":
>
> >>> a=3
> >>> id(a)
> 3368152
> >>> b=a
> >>> id(b)
> 3368152
> >>> b=4
> >>> id(b)
> 3368140
>
> You don't expect the "identity" of the variable b to change with a simple
> assignment from a C/C++ point of view. You also don't expect the "identity"
> of a and b to be the same after assigning one to the other. You can create
> C++ classes that behave like that (you can implement Python in C++ :), but
> that doesn't mean that you expect C++ language constructs to behave like
> that.
I'm really not comfortable with C, but I disagree. What would you say
about this program:
#include
#include
#include
#define tf(bool) (bool) ? "true" : "false"
const char * greeting = "hello world";
int main() {
/* These mallocs don't really need to be hear for me to make my
point, because as far as I know, what they return is garbage
values anyway :P. I just put them there so my pointers are
pointing to "real objects".*/
char * string = (char *) malloc(sizeof(char)*100);
char * letterBomb = (char *) malloc(sizeof(char)*100);
strcpy(string, greeting);
strcpy(letterBomb, greeting);
printf("are we equal? %s\n", tf(strcmp(string, letterBomb) == 0));
printf("are we IDENTICAL? %s\n", tf(string == letterBomb));
printf("sabotage...\n");
letterBomb = string;
printf("are we identical NOW? %s\n", tf(string==letterBomb));
}
>
> Gerhard
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Re: BCD List to HEX List
John Machin wrote: > > Simon Forman wrote: >> Philippe, please! The suspense is killing me. What's the cpu!? >> >> For the love of God, what's the CPU? >> >> I-can't-take-it-anymore-it's-such-a-simple-question-ingly yours, > > Yes, please . > > I've found a C compiler manual on the web for the Epson S1C33 CPU as > well as the one for the S1C88 that Philippe pointed me at. They have > two things in common: > (1) explicitly mention support for 32-bit longs > (2) in the bottom right corner of most pages, it has the part number > (which includes S1Cxx) and the version number. > > Philippe has what he believes to be the manual for the C compiler for > the CPU in the device, but couldn't find it on the web. > > Perhaps if Philippe could divulge the part number that's in the bottom > right corner of the manual that he has, and/or any part number that > might be mentioned in the first few pages of that manual, enlightenment > may ensue > > Cheers, > John That was cute ... over and out ! Long live Python. A+ Philippe -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with arrays of strings
On Mon, 31 Jul 2006 18:33:34 -0700, Simon Forman wrote: > Splitting a string into a list (array) of lines is easy enough, if you > want to discard the line endings, Thanks for the pointers, that should be enough to get me started. I had started off in the wrong direction looking for arrays instead of lists. I'll code this up and give it try. Hopefully it can run though the 10GB of data in a few hours and not take days. Jon Smirl [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
code to retrieve web mail?
I have a free web mail address and would like to use python to retrieve files that have been emailed to me. The basic code would accommodate cookies, a login name and password, then download using the full URL I can provide. From postings here I thought mechanize held promise, but I've found it to contain filenames that are invalid for MSDOS (too many characters, and/or too many dots in the name, etc.) so I have little hope that the mechanize module can be used. I'm running python2.4.2 on plain MSDOS (not windows), so would appreciate a pointer to sample code that can do the job. I know that curl has this capability, but I'll learn something by tinkering with python code. Thanks. -- John Savage (my news address is not valid for email) -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with arrays of strings
Jon Smirl wrote:
> I only have a passing acquaintance with Python and I need to modify some
> existing code. This code is going to get called with 10GB of data so it
> needs to be fairly fast.
>
> http://cvs2svn.tigris.org/ is code for converting a CVS repository to
> Subversion. I'm working on changing it to convert from CVS to git.
>
> The existing Python RCS parser provides me with the CVS deltas as
> strings.I need to get these deltas into an array of lines so that I can
> apply the diff commands that add/delete lines (like 10 d20, etc). What is
> the most most efficient way to do this? The data structure needs to be
> able to apply the diffs efficently too.
>
> The strings have embedded @'s doubled as an escape sequence, is there an
> efficient way to convert these back to single @'s?
>
> After each diff is applied I need to convert the array of lines back into
> a string, generate a sha-1 over it and then compress it with zlib and
> finally write it to disk.
>
> The 10GB of data is Mozilla CVS when fully expanded.
>
> Thanks for any tips on how to do this.
>
> Jon Smirl
> [EMAIL PROTECTED]
Splitting a string into a list (array) of lines is easy enough, if you
want to discard the line endings,
lines = s.splitlines()
or, if you want to keep them,
lines = s.splitlines(True)
replacing substrings in a string is also easy,
s = s.replace('@@', '@')
For efficiency, you'll probably want to do the replacement first, then
split:
lines = s.replace('@@', '@').splitlines()
Once you've got your list of lines, python's awesome list manipulation
should makes applying diffs very easy. For instance, to replace lines
3 to 7 (starting at zero) you could assign a list (containing the
replacement lines) to a "slice" of the list of lines:
lines[3:8] = replacement_lines
Where replacement_lines is a list containing the replacement lines.
There's a lot more to this, read up on python's lists.
To convert the list back into one string use the join() method; if you
kept the line endings,
s = "".join(lines)
or if you threw them away,
s = "\n".join(lines)
Python has standard modules for sha-1 digest, sha, and zlib
compression, zlib. See http://docs.python.org/lib/lib.html
HTH, enjoy,
~Simon
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Re: Windows vs. Linux
Andy Dingley wrote: [snip] > Python is one of the best languages I've found for > platform-independence - significantly better than Perl. [big snip] This statement was given in the context of Windows and Linux, and I've precious little experience doing anything on Windows. So I won't challenge it in the least, and in fact do not doubt it. But taken out of that context, I'll challenge it. I was first exposed to Python about five or six years ago--my boss asked me to consider it. What I found was that the current version of Python was V2.2, but newest version (that I could find) that ran on VMS was V1.4. I decided to stick with Perl, which provides excellent support for VMS. Now that I no longer need to worry about VMS, I prefer Python. Quite a bit. /Dan -- http://mail.python.org/mailman/listinfo/python-list
Re: readline not found error
Robert Kern wrote: > David Bear wrote: >> I built python 2.4.2 for suse linux 9.3. I configured it to be a separate >> instance of python from the version packaged with suse. >> >> Now when I start it I get an error: >> python >> Python 2.4.2 (#4, Jul 27 2006, 14:34:30) >> [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] on linux2 >> Type "help", "copyright", "credits" or "license" for more information. >> Traceback (most recent call last): >> File "/etc/pythonstart", line 7, in ? >> import readline >> ImportError: No module named readline >> >> however, I do have readline installed: >> >> rpm -qa | grep readline >> readline-5.0-7.2 >> readline-32bit-9.3-7.1 >> >> it id truly does exist: >> >> locate readline >> ... >> /lib/libreadline.so.5 >> /lib/libreadline.so.5.0 >> /lib64/libreadline.so.5 >> /lib64/libreadline.so.5.0 > > However, these are not the Python readline module. The Suse package for it > is probably called python-readline or something like that. > okay. Since I grabbed the python tar file from python.org, do I then assume that readline is not included in the python source distribution? if so, where would I find it. If not, what different build instructions do I need to follow to make it build with readline? -- David Bear -- let me buy your intellectual property, I want to own your thoughts -- -- http://mail.python.org/mailman/listinfo/python-list
Re: realine not found error
David Bear wrote: > I built python 2.4.2 for suse linux 9.3. I configured it to be a separate > instance of python from the version packaged with suse. > > Now when I start it I get an error: > python > Python 2.4.2 (#4, Jul 27 2006, 14:34:30) > [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > Traceback (most recent call last): > File "/etc/pythonstart", line 7, in ? > import readline > ImportError: No module named readline > > however, I do have readline installed: > > rpm -qa | grep readline > readline-5.0-7.2 > readline-32bit-9.3-7.1 > > it id truly does exist: > > locate readline > ... > /lib/libreadline.so.5 > /lib/libreadline.so.5.0 > /lib64/libreadline.so.5 > /lib64/libreadline.so.5.0 However, these are not the Python readline module. The Suse package for it is probably called python-readline or something like that. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On 2006-07-31 18:23:17, Cliff Wells wrote: > My point is to stop FUD right at that comment. I don't doubt your > research from "a few years ago", but ancient research is entirely > irrelevant for making a decision *today*. That's exactly the reason why I added this information. It might not be for you, but it is interesting for me (and might be for someone else) to see that I get a different feedback now than I got a few years ago. It tells something about the dynamic of the process that the mere status of today doesn't tell. Besides, "claimed to have" and "seemed to have" are not really FUD inducing terms :) Anyway, I appreciate you sharing your experience (which in that area certainly is more than mine). Gerhard -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Simon Forman wrote: > Philippe, please! The suspense is killing me. What's the cpu!? > > For the love of God, what's the CPU? > > I-can't-take-it-anymore-it's-such-a-simple-question-ingly yours, Yes, please . I've found a C compiler manual on the web for the Epson S1C33 CPU as well as the one for the S1C88 that Philippe pointed me at. They have two things in common: (1) explicitly mention support for 32-bit longs (2) in the bottom right corner of most pages, it has the part number (which includes S1Cxx) and the version number. Philippe has what he believes to be the manual for the C compiler for the CPU in the device, but couldn't find it on the web. Perhaps if Philippe could divulge the part number that's in the bottom right corner of the manual that he has, and/or any part number that might be mentioned in the first few pages of that manual, enlightenment may ensue Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
RE: Python-list Digest, Vol 35, Issue 4
This is an automated response. Thank you for contacting the Technical Support team at The MathWorks Ltd. A technical support representative will be contacting you within 1 business day. The following information will help us in responding to your request. If you have already provided the information requested below, no further action is required. 1) License number, release number, and operating system. Typing “ver” at the MATLAB command prompt will list this information. 2) Exact text of any error message(s) received 3) All files (M-files, Simulink models, data files) and steps to reproduce the issue. If you need to send in an executable or a zip file, please wait until a support engineer contacts you. To provide this information, reply to this message keeping the Thread Id listed at the bottom of this message intact. STUDENT VERSION USERS: If you are a student using the Student Version, please note that email and phone support is available for product installation, software crashes, or bug reporting. For all other enquiries, contact your lecturer or visit the support web site at http://www.mathworks.co.uk/support/. If you have any concerns about our technical support services, write to [EMAIL PROTECTED] Technical Support Team The MathWorks Ltd Email: [EMAIL PROTECTED] Tel: 01223 423200 Fax: 01223 423250 http://www.mathworks.co.uk/support [THREAD ID: 1-2ZFVQC] -Original Message- From: [EMAIL PROTECTED] Sent: 7/31/2006 8:43:01 PM To: [EMAIL PROTECTED] Subject: Python-list Digest, Vol 35, Issue 4 Send Python-list mailing list submissions to python-list@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/python-list or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Python-list digest..." -- http://mail.python.org/mailman/listinfo/python-list
Help with arrays of strings
I only have a passing acquaintance with Python and I need to modify some existing code. This code is going to get called with 10GB of data so it needs to be fairly fast. http://cvs2svn.tigris.org/ is code for converting a CVS repository to Subversion. I'm working on changing it to convert from CVS to git. The existing Python RCS parser provides me with the CVS deltas as strings.I need to get these deltas into an array of lines so that I can apply the diff commands that add/delete lines (like 10 d20, etc). What is the most most efficient way to do this? The data structure needs to be able to apply the diffs efficently too. The strings have embedded @'s doubled as an escape sequence, is there an efficient way to convert these back to single @'s? After each diff is applied I need to convert the array of lines back into a string, generate a sha-1 over it and then compress it with zlib and finally write it to disk. The 10GB of data is Mozilla CVS when fully expanded. Thanks for any tips on how to do this. Jon Smirl [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Philippe, please! The suspense is killing me. What's the cpu!? For the love of God, what's the CPU? I-can't-take-it-anymore-it's-such-a-simple-question-ingly yours, ~Simon -- http://mail.python.org/mailman/listinfo/python-list
realine not found error
I built python 2.4.2 for suse linux 9.3. I configured it to be a separate instance of python from the version packaged with suse. Now when I start it I get an error: python Python 2.4.2 (#4, Jul 27 2006, 14:34:30) [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] on linux2 Type "help", "copyright", "credits" or "license" for more information. Traceback (most recent call last): File "/etc/pythonstart", line 7, in ? import readline ImportError: No module named readline however, I do have readline installed: rpm -qa | grep readline readline-5.0-7.2 readline-32bit-9.3-7.1 it id truly does exist: locate readline ... /lib/libreadline.so.5 /lib/libreadline.so.5.0 /lib64/libreadline.so.5 /lib64/libreadline.so.5.0 ... I googled about for this and there were numerous hits on this problem from others, but I never found a 'solution'. -- David Bear -- let me buy your intellectual property, I want to own your thoughts -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Pickle vs XML for file I/O
crystalattice wrote: > I'm creating an RPG for experience and practice. I've finished a > character creation module and I'm trying to figure out how to get the > file I/O to work. > > I've read through the python newsgroup and it appears that shelve > probably isn't the best option for various reasons. This lead me to > try messing w/ pickle, but I can't figure out how to use it with > classes. I've found many examples of using pickle w/ non-OOP code but > nothing that shows how to use it w/ classes, subclasses, etc. I've > read the documentation but it doesn't explain it well enough for me. > > Then I started thinking perhaps I'm going about it wrong. My current > thought is to save an instance of each character so all the info (name, > skills, hit points, etc.) is stored in one place. But looking at > OpenRPG made me think that perhaps using XML to store the information > would be better. Each character could have a separate XML file, though > I don't know how it would work if many NPC's are required. > > I guess my question is, what are the benifits of getting pickle to work > w/ my classes vs. converting all the character data into XML and just > writing that to a file? Since most of the data would need to be > modified often, e.g. hit points, is one storage format better than the > other? Can you even modify data if it's been pickled w/o having to > unpickle it, change the data, then repickle it? Um, there's nothing tricky to using pickle with classes: |>> import pickle |>> class foo: pass |>> f = foo() |>> pstr = pickle.dumps(f) |>> pstr '(i__main__\nfoo\np0\n(dp1\nb.' |>> newf = pickle.loads(pstr) |>> newf <__main__.foo instance at 0xb664690c> Pickle is simple and should work "out-of-the-box". I wouldn't mess with XML until I was sure I needed it for something. What kind of trouble were you having with pickle? Peace, ~Simon -- http://mail.python.org/mailman/listinfo/python-list
Pickle vs XML for file I/O
I'm creating an RPG for experience and practice. I've finished a character creation module and I'm trying to figure out how to get the file I/O to work. I've read through the python newsgroup and it appears that shelve probably isn't the best option for various reasons. This lead me to try messing w/ pickle, but I can't figure out how to use it with classes. I've found many examples of using pickle w/ non-OOP code but nothing that shows how to use it w/ classes, subclasses, etc. I've read the documentation but it doesn't explain it well enough for me. Then I started thinking perhaps I'm going about it wrong. My current thought is to save an instance of each character so all the info (name, skills, hit points, etc.) is stored in one place. But looking at OpenRPG made me think that perhaps using XML to store the information would be better. Each character could have a separate XML file, though I don't know how it would work if many NPC's are required. I guess my question is, what are the benifits of getting pickle to work w/ my classes vs. converting all the character data into XML and just writing that to a file? Since most of the data would need to be modified often, e.g. hit points, is one storage format better than the other? Can you even modify data if it's been pickled w/o having to unpickle it, change the data, then repickle it? -- http://mail.python.org/mailman/listinfo/python-list
Re: under naming
David Bear wrote: > I must have missed reading something important about naming conventions. > > I have found that if I have a python module where I have an identifier named > with a beginning underscore that I cannot use from module import * to make > that name available in another module. > > for example, > module A > > _myvar = 'a local var' > > module B > from A import * > > _myvar -- is not available. > > Is this in a pep somewhere ? > http://www.python.org/doc/2.4.3/ref/import.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Working with Widget after Instance loses the reference
On Mon, 2006-07-31 at 11:15 -0700, Al in Dallas wrote:
> I made the mistake of creating an instance of a widget and assigning it
> to a name I'd already used. Now, if I use root.children or
> root.slaves(), I can see the "lost" widget, but can I do anything else
> with the string of numbers that shows up when I use root.children? I'd
> like to destory the widget, for example. it would be even better if I
> could create a new name and have it reference the "lost" widget.
>
> Of course, I can just kill my toplevel and start over.
>
Consider the following code run in the python shell:
>>> from Tkinter import *
>>> r = Tk()
>>> b1 = Button(r, text='test')
>>> b1.pack()
>>> b2 = Button(r, text='test2')
>>> b2.pack()
>>> r.children
{'-1210160564': , '-1210225748':
}
>>> r.slaves()
[, ]
>>> b1 = 'xxx'
>>> b1.destroy()
Traceback (most recent call last):
File "", line 1, in ?
AttributeError: 'str' object has no attribute 'destroy'
>>> b1 = r.slaves()[0]
>>> b1.destroy()
>>>
So, as long as you know what your widget instance is in root.slaves() or
root.children you can assign it to a new name.
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Re: under naming
David Bear wrote: > I must have missed reading something important about naming conventions. > > I have found that if I have a python module where I have an identifier named > with a beginning underscore that I cannot use from module import * to make > that name available in another module. > > for example, > module A > > _myvar = 'a local var' > > module B > from A import * > > _myvar -- is not available. > > Is this in a pep somewhere ? No; this has been a feature since before the time of PEPs. However, it is documented here: http://docs.python.org/ref/import.html -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Nuther problem with 'dive into Python'
On Mon, 2006-07-31 at 14:03 +0100, Ben Edwards wrote:
> Am going through Chapter 9 - HTTP Web Services in dive into Python. It
> uses the following:
>
> data = urllib.urlopen('http://diveintomark.org/xml/atom.xml').read()
>
> The page no longer exists, can anyone recommend an alternative page to
> use?
Perhaps any one of the approximately 100 million pages with Atom
feeds?
Google is your friend:
http://www.google.com/search?hl=en&lr=lang_en&safe=off&q=blog
+atom&btnG=Search
Results 1 - 10 of about 105,000,000 English pages for blog atom.
Cliff
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PIL issues
I am trying to use PIL and when building it, PIL fails to find my jpeg library. I am using a python 2.4.3 that I build myself on Suse linux 9.3. I do have the following jpeg libraries: rpm -qa | grep jpeg jpeg-6b-738 libjpeg-32bit-9.3-7 libjpeg-6.2.0-738 yet, when building PIL I get: python setup.py build_ext -i running build_ext PIL 1.1.5 BUILD SUMMARY version 1.1.5 platform linux2 2.4.2 (#4, Jul 27 2006, 14:34:30) [GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] *** TKINTER support not available *** JPEG support not available --- ZLIB (PNG/ZIP) support ok *** FREETYPE2 support not available To add a missing option, make sure you have the required library, and set the corresponding ROOT variable in the setup.py script. I don't know what ROOT variable the message is referring too. Any advice would be appreciated. -- David Bear -- let me buy your intellectual property, I want to own your thoughts -- -- http://mail.python.org/mailman/listinfo/python-list
under naming
I must have missed reading something important about naming conventions. I have found that if I have a python module where I have an identifier named with a beginning underscore that I cannot use from module import * to make that name available in another module. for example, module A _myvar = 'a local var' module B from A import * _myvar -- is not available. Is this in a pep somewhere ? -- David Bear -- let me buy your intellectual property, I want to own your thoughts -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Decorator for use with cgilib
"Paul McGuire" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > (if anyone still uses cgilib, in the presence of Django, TG, et al.)... > > I tried out a simple CGI Python script this week, and was a bit annoyed at > the repetitive ,,, etc. opening and closing tags for each > request handler method. So I wrote a decorator to handle this junk. It's > posted on the Python wiki at > http://wiki.python.org/moin/PythonDecoratorLibrary#head-f0d46c66e0a2653daae3f451d32405a283d6759b. > > -- Paul > > Duh, that is to say, "for use with the cgi module." There is no cgilib. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Decorator for use with cgilib
(if anyone still uses cgilib, in the presence of Django, TG, et al.)... I tried out a simple CGI Python script this week, and was a bit annoyed at the repetitive ,,, etc. opening and closing tags for each request handler method. So I wrote a decorator to handle this junk. It's posted on the Python wiki at http://wiki.python.org/moin/PythonDecoratorLibrary#head-f0d46c66e0a2653daae3f451d32405a283d6759b. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Philippe Martin wrote: > Sorry forgot a few answers/comments: > > John Machin wrote: > > SHOULD BE >= > >currently add([6, 6], [4, 4] -> [10, 10] > > True, thanks > > > *** try - 10 instead of % 10 > > If the first operand is > 19, you have a bug! > > This might save a few CPU cycles on your smartcard > > can it ? > can WHAT do WHAT? > each array value will be [0..9] if so, you can use - 10 instead of %10 if not, then whatever produced your input has a bug > > >> SHOULD CHECK FOR CARRY AT END > >>currently add([9], [8]) -> [7] > >>should return [1, 7] or handle overflow somehow > > True, this actually should become an error from the card to the calling > device. That would be a pretty large number though. > > > >> MINUS ZERO? > I just do not want to leave it at one(1) if it is. The question is "what do you think you are achieving by having a MINUS sign in front of the zero instead of plain old ordinary zero?" -- http://mail.python.org/mailman/listinfo/python-list
Re: ImportError raised in script, not interactive session.
Jordan R McCoy wrote:
> If this isn't the case, what are you using for TARGET_DIR?
${TARGET_DIR} = /home/blinks/projects/overwatch/target/lib/python
I've started the interactive session from several different
directories, and never had a problem.
My make output (note the second item in sys.path):
--
cd /home/blinks/projects/overwatch/target/bin &&
PYTHONPATH="/home/blinks/projects/overwatch/target/lib/python"
./test.py
*** sys.path: ['/home/blinks/projects/overwatch/target/bin',
'/home/blinks/projects/overwatch/target/lib/python',
'/usr/lib/python24.zip', '/usr/lib/python2.4',
'/usr/lib/python2.4/plat-linux2', '/usr/lib/python2.4/lib-tk',
'/usr/lib64/python2.4/lib-dynload', '/usr/lib/portage/pym',
'/usr/lib64/python2.4/site-packages',
'/usr/lib/python2.4/site-packages']
Traceback (most recent call last):
File "./test.py", line 6, in ?
from overwatch.view import console
ImportError: No module named view
make: *** [test] Error 1
--
Oh, and:
--
$ ls /home/blinks/projects/overwatch/target/lib/python/
overwatch
--
Thanks for the help! If you want a copy of the project to reproduce,
it's on Subversion at http://tools.assembla.com/svn/Overwatch/trunk
(should be readable).
--
http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
John Machin wrote: > Have you actually tried it? Do you mean it barfs on the word "long" > [meaning that it's not an ANSI-compliant C compiler], or that "long" is > only 16 bits? :-) if the documentation tells me there is no 32 bit support, why should I not believe it ? > because (1) [like I said before] gcc appears to be able to generate > code for a vast number of different CPUs (2) because I find it very > difficult to believe that a C compiler for the CPU on a device in > current use won't support 32-bit longs -- and so far you have presented > no credible evidence to the contrary I can recall working on a sparclite many years ago (32 bits) with a x-compiler called g++ (supported by cygnus) that handled the type "long long" = 64 bits. As far as the credible evidence ... you're hurting my feelings ;-) > >> and I googled S1C88 and sent you a >> link as that is the name of the compiler's directory. > > and is that or is it not the correct link for the documentation for the > compiler that you are using?? > Neither can I ! - never found any documentation online ... got it from my device supplier. Regards, Philippe -- http://mail.python.org/mailman/listinfo/python-list
Re: Python help for Access database
BartlebyScrivener wrote: > John Machin wrote: > > >> or mxODBC > >> [very good but not free]. > > I love mxODBC. It's free for noncommercial use. > I was presuming that the OP was mucking about with Access only because he was so constrained by his job :-) -- http://mail.python.org/mailman/listinfo/python-list
RE: ImportError raised in script, not interactive session.
Assuming your setting the target directory to the overwatch folder, and you are
starting the interactive session in your home directory, this is what is
happening. The folder containing your package must be in the python path, not
the folder itself. Try "PYTHONPATH=/home/directory python test.py". The reason
it works in the interactive session, assuming you are starting it from your
home directory, is that the current directory of the session is placed at the
front of the import path; the value of PYTHONPATH is merely added after the
current directory, and before the standard directories.
If this isn't the case, what are you using for TARGET_DIR?
Jordan
-Original Message-
From: [EMAIL PROTECTED] on behalf of Adam Blinkinsop
Sent: Mon 7/31/2006 5:42 PM
To: python-list@python.org
Subject: ImportError raised in script, not interactive session.
I'm writing a set of modules to monitor remote system services, and I'm
having a problem running my test scripts. When I pass the scripts into
python, like so:
--
$ PYTHONPATH="${TARGET_DIR}" python test.py
--
I get an ImportError:
--
Traceback (most recent call last):
File "./test.py", line 6, in ?
from overwatch.view import console
ImportError: No module named view
--
However, when I load up an interactive Python session:
--
$ PYTHONPATH="${TARGET_DIR}" python
--
I can do the exact same import statement with no problem:
--
Python 2.4.3 (#1, Jul 28 2006, 09:40:08)
[GCC 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from overwatch.view import console
>>> dir(console)
['Daemon', 'UI', '__builtins__', '__doc__', '__file__', '__name__',
'datetime']
--
My package directory is arranged under ${TARGET_DIR} as prescribed in
the Python docs:
overwatch/
..__init__.py
..[etc.]
..view/
__init__.py
console.py
[etc.]
All modules involved are my own, and I'm setting PYTHONPATH so I can
test with the package installed in my home directory (which I use
distutils to do). I've checked online, and double-checked the Python
docs to make sure my modules are arranged properly, and it all looks
alright. Any ideas?
--
http://mail.python.org/mailman/listinfo/python-list
--
http://mail.python.org/mailman/listinfo/python-list
RE: Python-list Digest, Vol 35, Issue 1
This is an automated response. Thank you for contacting the Technical Support team at The MathWorks Ltd. A technical support representative will be contacting you within 1 business day. The following information will help us in responding to your request. If you have already provided the information requested below, no further action is required. 1) License number, release number, and operating system. Typing “ver” at the MATLAB command prompt will list this information. 2) Exact text of any error message(s) received 3) All files (M-files, Simulink models, data files) and steps to reproduce the issue. If you need to send in an executable or a zip file, please wait until a support engineer contacts you. To provide this information, reply to this message keeping the Thread Id listed at the bottom of this message intact. STUDENT VERSION USERS: If you are a student using the Student Version, please note that email and phone support is available for product installation, software crashes, or bug reporting. For all other enquiries, contact your lecturer or visit the support web site at http://www.mathworks.co.uk/support/. If you have any concerns about our technical support services, write to [EMAIL PROTECTED] Technical Support Team The MathWorks Ltd Email: [EMAIL PROTECTED] Tel: 01223 423200 Fax: 01223 423250 http://www.mathworks.co.uk/support [THREAD ID: 1-2ZFMI1] -Original Message- From: [EMAIL PROTECTED] Sent: 7/31/2006 6:12:18 PM To: [EMAIL PROTECTED] Subject: Python-list Digest, Vol 35, Issue 1 Send Python-list mailing list submissions to python-list@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/python-list or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Python-list digest..." -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows vs. Linux
> I'd never recommend dual-boot for anything! > Hardware is cheap, time and trouble is expensive. Dual-booting if so easy and helpful, I have always found it to be extremely useful. You might have a bad experience but I have my laptop and desktop both running dual boot successfully for 4 and a half years now. -- http://mail.python.org/mailman/listinfo/python-list
RE: Python-list Digest, Vol 35, Issue 2
This is an automated response. Thank you for contacting the Technical Support team at The MathWorks Ltd. A technical support representative will be contacting you within 1 business day. The following information will help us in responding to your request. If you have already provided the information requested below, no further action is required. 1) License number, release number, and operating system. Typing “ver” at the MATLAB command prompt will list this information. 2) Exact text of any error message(s) received 3) All files (M-files, Simulink models, data files) and steps to reproduce the issue. If you need to send in an executable or a zip file, please wait until a support engineer contacts you. To provide this information, reply to this message keeping the Thread Id listed at the bottom of this message intact. STUDENT VERSION USERS: If you are a student using the Student Version, please note that email and phone support is available for product installation, software crashes, or bug reporting. For all other enquiries, contact your lecturer or visit the support web site at http://www.mathworks.co.uk/support/. If you have any concerns about our technical support services, write to [EMAIL PROTECTED] Technical Support Team The MathWorks Ltd Email: [EMAIL PROTECTED] Tel: 01223 423200 Fax: 01223 423250 http://www.mathworks.co.uk/support [THREAD ID: 1-2ZFMNJ] -Original Message- From: [EMAIL PROTECTED] Sent: 7/31/2006 6:46:59 PM To: [EMAIL PROTECTED] Subject: Python-list Digest, Vol 35, Issue 2 Send Python-list mailing list submissions to python-list@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/python-list or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Python-list digest..." -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows vs. Linux
Linux can let you do more in Python and this comes from my personal exprience. Ubuntu Dapper should let you install drivers easily for wireless...a little bit tweaking might be required but its worth the effort. Python and Ubuntu rock...go fot it. [EMAIL PROTECTED] wrote: > Okay, once-upon-a-time I tried to start programming by learning C. At > the time I was younger and didn't really understand all that C had to > offer. I eventually moved over to Microsoft's Visual Basic. It was > nice to be able to design a visual application with no effort (too bad > I didn't really learn the ins and outs of programming) > > Long story short, I want to get back into programming, and Python looks > like a good choice for me to start with, and maybe become advanced > with. Right now I run Windows as my main operating system. On my old > laptop I ran Ubuntu, and liked it very much; however, my new laptop has > a Broadcom wireless card, and it's not very Linux friendly. Is Windows > an okay enviornment in which to program under Python, or do you > recommend that I run a dual-boot of Linux or maybe a VMWare install to > program under Python? -- http://mail.python.org/mailman/listinfo/python-list
ImportError raised in script, not interactive session.
I'm writing a set of modules to monitor remote system services, and I'm
having a problem running my test scripts. When I pass the scripts into
python, like so:
--
$ PYTHONPATH="${TARGET_DIR}" python test.py
--
I get an ImportError:
--
Traceback (most recent call last):
File "./test.py", line 6, in ?
from overwatch.view import console
ImportError: No module named view
--
However, when I load up an interactive Python session:
--
$ PYTHONPATH="${TARGET_DIR}" python
--
I can do the exact same import statement with no problem:
--
Python 2.4.3 (#1, Jul 28 2006, 09:40:08)
[GCC 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from overwatch.view import console
>>> dir(console)
['Daemon', 'UI', '__builtins__', '__doc__', '__file__', '__name__',
'datetime']
--
My package directory is arranged under ${TARGET_DIR} as prescribed in
the Python docs:
overwatch/
..__init__.py
..[etc.]
..view/
__init__.py
console.py
[etc.]
All modules involved are my own, and I'm setting PYTHONPATH so I can
test with the package installed in my home directory (which I use
distutils to do). I've checked online, and double-checked the Python
docs to make sure my modules are arranged properly, and it all looks
alright. Any ideas?
--
http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Philippe Martin wrote: > John Machin wrote: > > > So why don't you get a freely available "bignum" package, throw away > > the bits you don' t want, and just compile it and use it, instead of > > writing your own bug-ridden (see below) routines? Oh yeah, the bignum > > package might use "long" and you think that you don't have access to > > 32-bit longs in the C compiler for the 8-bit device that you mistook > > for an arm but then said is an Smc8831 [Google can't find it] with a > > CPU that you think is a SC88 [but the manual whose URL you gave is for > > an S1C88] ... > > > > Thanks for the fixes - still looking at it. > > You are correct, all "bignum" packages I found needed 32 bits. > > Yes I still see from my documentation that there is no "long" handled by my > compiler. Have you actually tried it? Do you mean it barfs on the word "long" [meaning that it's not an ANSI-compliant C compiler], or that "long" is only 16 bits? > > I did make a mistake on the CPU (and I really do not care what it is) - you > wanted some ref (I still do not see why) because (1) [like I said before] gcc appears to be able to generate code for a vast number of different CPUs (2) because I find it very difficult to believe that a C compiler for the CPU on a device in current use won't support 32-bit longs -- and so far you have presented no credible evidence to the contrary > and I googled S1C88 and sent you a > link as that is the name of the compiler's directory. and is that or is it not the correct link for the documentation for the compiler that you are using?? > > The reason I first came here was to not have to write my "... own > bug-ridden ..." (how nice) ... I have plenty of other bugs to write first. > -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
northband a écrit : > Just spoke with my department and looks like we still want to go with a > server scripting method. Although MVC may be better fit, for the sake > of the learning curve, we want to use a PSP style method. I really don't think the learning curve will be a problem. We learned Django while using it for an app, and the app was completed and delivered within a week (total 8 man/day). Granted, it was a dead simple app, but it would have take as much time doing it in PHP. The last one we did was not trivial, and was ready to deliver in 2 weeks - one week before schedule. This very first release is still running, and we didn't have a single bug report. Not to say that Django is a silver-bullet, but it's actually the best tool we found for sql-based web apps so far. > So as of now we are looking at using FreeBSD, MySQL, and some form of > Python that will allow us to achieve great performance serving > 30million page loads / month. FWIW, when it comes to web apps, and given a reasonnably well designe/implemented app, "performance" is more a matter of tuning/hardware/etc than anything else. -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Sorry forgot a few answers/comments: John Machin wrote: > SHOULD BE >= >currently add([6, 6], [4, 4] -> [10, 10] True, thanks > *** try - 10 instead of % 10 > If the first operand is > 19, you have a bug! > This might save a few CPU cycles on your smartcard can it ? each array value will be [0..9] >> SHOULD CHECK FOR CARRY AT END >>currently add([9], [8]) -> [7] >>should return [1, 7] or handle overflow somehow True, this actually should become an error from the card to the calling device. That would be a pretty large number though. >> MINUS ZERO? I just do not want to leave it at one(1) if it is. Regards, Philippe -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On Mon, 2006-07-31 at 15:06 -0700, northband wrote: > Makes sense, I will follow your advice. Sounds like more time invest > upfront will equal time saved over the long run. I am defitely > interested in proxy caching and load balancing. Which do you > recommend? I have used #Pound while working for a university. I currently use Pound, mostly for proxying to virtual hosts on my shared hosting systems, but for heavy page hits and dynamic content, Squid is probably of more interest since Pound doesn't do caching. Regards, Cliff -- http://mail.python.org/mailman/listinfo/python-list
Re: Python help for Access database
John Machin wrote: >> or mxODBC >> [very good but not free]. I love mxODBC. It's free for noncommercial use. http://www.egenix.com/files/python/mxODBC.html rd -- http://mail.python.org/mailman/listinfo/python-list
ELF format reader
Hi, I am looking for an ELF format reader written in python. Does anyone know if it exists?H. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
northband a écrit : > So seems the best approach would be a MVC model rather than server > scripting? This is still "server-scripting" - at least since on the server-side and is done with something frequently labelled as a "script language" !-) > Currently our site is built with a closed source hypertext > preprocessor much like PHP. So it would be easier for us to script > another site, Depends on how your app is written - one can do MVC with PHP too. > but if we would gain performance via a MVC model, This won't change anything to performances. What you can gain is a better design, well-decoupled code, hence far less maintenance problems. > > I am not very familiar with developing via MVC, any good tutorials out > there or good places to start? Do the Django tutorial. They actually name things differently (ie they call controllers views and views templates), which can be a bit misleading, but that's really MVC. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
northband schrieb: > So seems the best approach would be a MVC model rather than server > scripting? Currently our site is built with a closed source hypertext > preprocessor much like PHP. So it would be easier for us to script > another site, but if we would gain performance via a MVC model, then > that's what we need. MVC and server side scripting are two totally orthogonal things - you don't do the one and ditch the other as a consequence of that. MVC is a pattern of software design. It won't affect the performance itself, at least not the system performance. It most probably will boost your developing performance, as following the clear separation of data (model), application logic (controller) and view-logic (view) will help maintaining the codebase and make changes easier. And MVC doesn't depend on the language used - you can even do that in PHP, albeit it makes things much more dependent on discipline. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
Gerhard Fiedler a écrit : > On 2006-07-31 15:00:15, Bruno Desthuilliers wrote: > > >>In fact, the real question IMHO is: what would MySQL advantage over >>PostgreSQL be ?-) > > > A few years ago I did some research, and the result was that while > PostgreSQL was claimed to have more features and a better design, the > reports of database corruption seemed to have been more frequent than with > MySQL. The usual reason given was that MySQL was more mature. > > I assume you don't agree... :) I obviously don't, based on experience with both. -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
John Machin wrote: > So why don't you get a freely available "bignum" package, throw away > the bits you don' t want, and just compile it and use it, instead of > writing your own bug-ridden (see below) routines? Oh yeah, the bignum > package might use "long" and you think that you don't have access to > 32-bit longs in the C compiler for the 8-bit device that you mistook > for an arm but then said is an Smc8831 [Google can't find it] with a > CPU that you think is a SC88 [but the manual whose URL you gave is for > an S1C88] ... > Thanks for the fixes - still looking at it. You are correct, all "bignum" packages I found needed 32 bits. Yes I still see from my documentation that there is no "long" handled by my compiler. I did make a mistake on the CPU (and I really do not care what it is) - you wanted some ref (I still do not see why) and I googled S1C88 and sent you a link as that is the name of the compiler's directory. The reason I first came here was to not have to write my "... own bug-ridden ..." (how nice) ... I have plenty of other bugs to write first. > *** WHAT HAPPENS IF arg1 > arg2? cmp is called first. Regards, Philippe -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
Makes sense, I will follow your advice. Sounds like more time invest upfront will equal time saved over the long run. I am defitely interested in proxy caching and load balancing. Which do you recommend? I have used #Pound while working for a university. -Adam Cliff Wells wrote: > On Mon, 2006-07-31 at 14:40 -0700, northband wrote: > > Just spoke with my department and looks like we still want to go with a > > server scripting method. Although MVC may be better fit, for the sake > > of the learning curve, we want to use a PSP style method. > > I'm with the others who suggest using an MVC framework. The learning > curve for Django, TurboGears, Pylons, et al, is ridiculously short, and > the maintainability of the resulting code is infinitely superior. > > Why don't you take a look at the 20 minute wiki screencast that > TurboGears has and make a decision then. Although the screencast is > specifically about TurboGears, a similar screencast could be made for > almost any of the other MVC-style frameworks: > > http://files.turbogears.org/video/20MinuteWiki2nd.mov > http://www.turbogears.org/preview/docs/tutorials/wiki20/index.html > > Developing in a PHP/ASP embedded style is an anachronism these days and > for good reason. Spend a couple days learning a modern framework. The > time will be well-spent and quickly made up in shortened development > time and code maintainablility. > > > So as of now we are looking at using FreeBSD, MySQL, and some form of > > Python that will allow us to achieve great performance serving > > 30million page loads / month. > > If I were you, I'd cease worrying about the performance of the framework > itself and research caching proxies and load balancing solutions > instead. The payoff in performance will be much higher and you won't > have to make architectural compromises. > > Regards, > Cliff > > -- -- http://mail.python.org/mailman/listinfo/python-list
Re: getting debug from urllib2
Thanks a lot, hove managed to get it working: opener = urllib2.build_opener(urllib2.HTTPHandler(debuglevel=1)) Ben On Mon, 2006-07-31 at 12:33 -0400, Chris Lambacher wrote: > On Mon, Jul 31, 2006 at 02:43:36PM +0100, Ben Edwards wrote: > > Have been experimenting with HTTP stuff in python 2.4 and am having a > > problem getting debug info. If I use utllib.utlopen I get debug but if I > > user utllib2 I do not. Below is the probram and the output I am > > getting. > > > > Any insight? > urllib2 sets the debug level every time a connection is made. The HTTPHandler > classes provide a way of setting this, but there is no convenient way of doing > this when using the urlopen interface. > > -Chris > > Ben > > > > * Code * > > > > import urllib, urllib2, httplib > > > > url = 'http://www.mozillazine.org/atom.xml' > > httplib.HTTPConnection.debuglevel = 1 > > > > print "urllib" > > > > data = urllib.urlopen(url); > > > > print "urllib2" > > > > request = urllib2.Request(url) > > opener = urllib2.build_opener() > > feeddata = opener.open(request).read() > > > > print "End\n" > > > > * Output * > > > > urllib > > connect: (www.mozillazine.org, 80) > > send: 'GET /atom.xml HTTP/1.0\r\nHost: www.mozillazine.org\r > > \nUser-agent: Python-urllib/1.16\r\n\r\n' > > reply: 'HTTP/1.0 200 OK\r\n' > > header: Date: Mon, 31 Jul 2006 13:43:11 GMT > > header: Server: Apache/2.0.55 (Gentoo) PHP/4.4.0-pl1-gentoo > > header: Last-Modified: Thu, 27 Jul 2006 18:05:52 GMT > > header: ETag: "20a1b4-6bcf-be12000" > > header: Accept-Ranges: bytes > > header: Content-Length: 27599 > > header: Content-Type: application/xml > > header: Age: 5 > > header: X-Cache: HIT from mz5.mz.osuosl.org > > header: X-Cache-Lookup: HIT from mz5.mz.osuosl.org:80 > > header: Connection: close > > urllib2 > > End > > > > > > > > -- > > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On Mon, 2006-07-31 at 14:40 -0700, northband wrote: > Just spoke with my department and looks like we still want to go with a > server scripting method. Although MVC may be better fit, for the sake > of the learning curve, we want to use a PSP style method. I'm with the others who suggest using an MVC framework. The learning curve for Django, TurboGears, Pylons, et al, is ridiculously short, and the maintainability of the resulting code is infinitely superior. Why don't you take a look at the 20 minute wiki screencast that TurboGears has and make a decision then. Although the screencast is specifically about TurboGears, a similar screencast could be made for almost any of the other MVC-style frameworks: http://files.turbogears.org/video/20MinuteWiki2nd.mov http://www.turbogears.org/preview/docs/tutorials/wiki20/index.html Developing in a PHP/ASP embedded style is an anachronism these days and for good reason. Spend a couple days learning a modern framework. The time will be well-spent and quickly made up in shortened development time and code maintainablility. > So as of now we are looking at using FreeBSD, MySQL, and some form of > Python that will allow us to achieve great performance serving > 30million page loads / month. If I were you, I'd cease worrying about the performance of the framework itself and research caching proxies and load balancing solutions instead. The payoff in performance will be much higher and you won't have to make architectural compromises. Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Python help for Access database
shakir wrote:
> HI All,
>
> I need help for inserting recods into the access database using python
> script through ODBC. I can insert data without any problem if I hard
> coded the run_Date field. But I need run_Date field should be mytime..
> I am getting error Data type mismatch in criteria expression. in EXEC
>
> I really appreciate if anyone can help me.
>
> Thanks in advance
>
> Shakir
>
> # mdbupdate.py
>
> import sys
> import os
> import os.path
> import shutil
> import time
> import sys, string, os, win32com.client
> import odbc
>
>
> mytime = time.strftime('%m/%d/%Y')
> mytimeYMD = time.strftime('%Y%m%d')
> conn = odbc.odbc("test1_Data")
> cursor = conn.cursor()
>
> # data type in mdb is as follows: application -> Text, Run_Date ->
> Date, Run_dateYMD -> #number, status -> Script
>
> cursor.execute("INSERT INTO local_cmgenadm (Application,Run_Date,
> Run_DateYMD,status) values (\'MyApp1\',\'%s\', \'20060731\' ,
> \'Good\')")%mytime
1. Why do you think you need all those \ characters?
2. Try this elementary debugging procedure:
sql = "INSERT ..."
print sql
print mytime
print sql % mytime
# compare the result with your hard-coded effort
cursor.execute(sql)
3. You may wish to try the parameterised approach:
cursor.execute("insert ... values (?,?,?,?)", ( 'MyApp1',mytime,
'20060731' ,'Good'))
[google "SQL injection attack"]
4. You may wish to try another interface: adodbapi [I've used that OK
but the project seems dormant (last update 3 years ago)] or mxODBC
[very good but not free].
If you are not constrained to use MS Access, consider sqlite3.
Cheers,
John
--
http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
Just spoke with my department and looks like we still want to go with a server scripting method. Although MVC may be better fit, for the sake of the learning curve, we want to use a PSP style method. So as of now we are looking at using FreeBSD, MySQL, and some form of Python that will allow us to achieve great performance serving 30million page loads / month. -Adam -- http://mail.python.org/mailman/listinfo/python-list
RE: Borg vs. Module
Tobiah: >From the standpoint of implementation, I don't see much of a difference unless you are specifically interested in the more limited functionality of a module (vs. a class instance). If you aren't, then you can simply instantiate your borg class and then insert it into sys.modules early in the pipeline; future imports of that module will get your instantiated class instead of the dummy module. Thus, you can use the import syntax yet still have descriptors and other class-based features. I would carefully consider doing this, though. It would be a somewhat uncommon use of import mechanics, and a particularly confusing one at that since the developer has to understand how the module-like object is being used differently. The flexibility of the import mechanics is there so that we can make something other than a common module look like a common module; having it not act like a common module might be making the endeavor overly complex and obscure. For example, the Twisted framework uses this technique to allow global access to the installed reactor via import syntax, which works well within the framework. It did, however, throw me a bit when I first encountered it, and drove me to pour over the source to find out what was happening. Perhaps this was good, but I wonder if it would just have been simpler to provide the same access through a module function (eg: reactor.reactor() -> reactor instance). -- Jordan McCoy -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of tobiah Sent: Monday, July 31, 2006 2:52 PM To: python-list@python.org Subject: Borg vs. Module I am making a web app, made up of many modules that all need access to some important data, like the current session data, cookies, navigation history, post/get variables, etc. I decided to go with the 'Borg' idea, by assigning the __dict__ of an object to a class variable so that each instantiation of the Borg() would share the same data. That way I can either pass the Borg around, or just Borg() it if I need it in some obscure place. Then I read an argument that it usually makes more sense to just have a module with the data and functions that I need, which all the other modules can simply import. Since I only need one instance, I could just stuff data and call 'methods' on this module, probably without even changing existing syntax. Are there any arguments as to which method is better? Thanks, Toby -- Posted via a free Usenet account from http://www.teranews.com -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On Mon, 2006-07-31 at 17:58 -0300, Gerhard Fiedler wrote: > On 2006-07-31 17:28:00, Cliff Wells wrote: > > >> I assume you don't agree... :) > > > > I certainly don't. [...] > > > Also, saying "a few years ago I did some research" in software terms is > > pretty much equivalent to saying "I don't know". > > Exactly. So what's your point with this comment? My point is to stop FUD right at that comment. I don't doubt your research from "a few years ago", but ancient research is entirely irrelevant for making a decision *today*. However, had I let it pass, then someone else might not make that distinction and come away with the impression that your research was somehow still relevant and that PostgreSQL is less reliable than MySQL. > I stated what was my impression at the time, with the hope that others > might want to comment. Thanks for the comment. You're welcome. > OTOH, anybody who says "I know" regarding a comparison in reliability > between databases must have pretty good data to back that up. Few have. > Most are in the "I don't know, but my impression is that ..." group. Absolutely. I can only give you anecdotal evidence myself. Further, if someone were to present a whitepaper of some sort demonstrating that one is superior with regard to reliability or performance, I'd probably be highly suspect of their motives. Regardless, since my job as a hoster requires that I assist customers with database issues, I have hands-on experience with dozens of instances of each and my *very recent* experience tells me that MySQL is far more prone to database corruption than PostgreSQL. In the past 6 months, I've repaired or restored at least 4 MySQL databases (and for no apparent reason, to boot), but I've had to do the same for exactly zero PostgreSQL installs since I started hosting over 3 years ago. And just to be clear, the number of PostgreSQL installs far exceeds the number of MySQL installs. Were there equal numbers of each I'd expect even more MySQL problems. Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
> But of course: > > >>> def fun(): > global x = 10 > > SyntaxError: invalid syntax > >>> global x x = 10 Close enough ^^; -- http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
Philippe Martin wrote:
> Paul Rubin wrote:
>
> > Philippe Martin <[EMAIL PROTECTED]> writes:
> >> I actually need numbers much larger than 32 bits.
***NOW*** you tell us, after all the stuffing about re 32 bits.
> >
> > What is the max size hex number you need? What is the application if
> > you don't mind my asking?
>
> Well I am under NDA so I cannot tell you what the application is - I need
> numbers (dec) with up to 24 digits.
So why don't you get a freely available "bignum" package, throw away
the bits you don' t want, and just compile it and use it, instead of
writing your own bug-ridden (see below) routines? Oh yeah, the bignum
package might use "long" and you think that you don't have access to
32-bit longs in the C compiler for the 8-bit device that you mistook
for an arm but then said is an Smc8831 [Google can't find it] with a
CPU that you think is a SC88 [but the manual whose URL you gave is for
an S1C88] ...
>
> As I said, I went the other way - more data on the line (from dev 1 to dev
> 2) - but I feel there is no speed issue at this stage.
>
> Seems to work.
Nothing is what it seems. See below.
>
>
> Regards,
>
> Philippe
>
>
>
> PYTHON **
> l2 = [1,2,3,4]
> l1 = [0,2,5,9]
>
>
> def sup (l1, l2): #assume same length
> for i in range(len(l1) ):
> if l1[i] > l2[i]:
> return 1
> if l1[i] < l2[i]:
> return -1
> return 0
>
>
>
> def add (l1, l2): #assume same length
> r = []
> idx = range (len(l1))
> idx.reverse()
> carry = 0
> for i in idx:
>
> if l1[i] + l2[i] > 10:
SHOULD BE >=
currently add([6, 6], [4, 4] -> [10, 10]
> carry = 1
> r.insert(0,(l1[i] + l2[i]) % 10)
*** try - 10 instead of % 10
If the first operand is > 19, you have a bug!
This might save a few CPU cycles on your smartcard
> else:
> r.insert(0,l1[i] + l2[i] + carry)
> carry = 0
SHOULD CHECK FOR CARRY AT END
currently add([9], [8]) -> [7]
should return [1, 7] or handle overflow somehow
> return r
>
>
>
> def sub (l1,l2): #assume same length - sub l1 from l2
*** WHAT HAPPENS IF arg1 > arg2?
> r = []
> idx = range (len(l1))
> idx.reverse()
> carry = 0
> for i in idx:
> print l1[i] + carry, l2[i]
> if ((l2[i]) - (l1[i]+carry) < 0) :
> print 'CARRY'
> r.insert(0,(((10 + l2[i]) - (l1[i]+carry
> carry = 1
> else:
> r.insert(0,(l2[i]) - (l1[i]+ carry))
> carry = 0
> return r
>
>
> print sub (l1,l2)
>
> * AND AM JUST TESTING IT IN JAVACARD **
with the bugs in the Python functions carried forward.
>
>
> //
> public byte CmpD(byte[] p_op1, byte[] p_op2, byte p_len) {
> byte l_count = (byte)0;
> for (; l_count < p_len; l_count += 1) {
> short C = (short)(p_op1[l_count]);
> short D = (short)(p_op2[l_count]);
>
> if (C > D) return 1;
> if (C < D) return -1;
> }
>
> return 0;
>
> }
>
> //
> public static void SubD(byte[] p_op1, byte[] p_op2, byte[] p_dest, byte
> p_len) {
> byte l_count = (byte)0;
> byte l_carry = (byte)0;
> for (l_count = (byte)(p_len - (byte)1); l_count >= (byte)0; l_count
> -= (byte)1) {
> if ((p_op2[l_count] - (byte)(p_op1[l_count]+l_carry) ) < 0) {
> p_dest[l_count] = (byte)( ((byte)10 + p_op2[l_count]) -
> (byte)(p_op1[l_count] + l_carry)) ;
> l_carry = (byte)1;
> }
> else {
> p_dest[l_count] = (byte)( p_op2[l_count] - (byte)(p_op
> [l_count] + l_carry)) ;
> l_carry = -(byte)0;
MINUS ZERO?
> }
> }
>
> }
>
> //
> public static void AddD(byte[] p_op1, byte[] p_op2, byte[] p_dest, byte
> p_len) {
> byte l_count = (byte)0;
> byte l_carry = (byte)0;
> for (l_count = (byte)(p_len - (byte)1); l_count >= (byte)0; l_count
> -= (byte)1) {
> if (p_op2[l_count] + (byte)(p_op1[l_count]) > 10) {
> p_dest[l_count] = (byte)( ( p_op2[l_count] + p_op
> [l_count] )% 10) ;
> l_carry = (byte)1;
> }
> else {
> p_dest[l_count] = (byte)( p_op2[l_count] + p_op1[l_count] +
> l_carry) ;
> l_carry = -(byte)0;
MINUS ZERO?
> }
> }
>
> }
--
http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
So seems the best approach would be a MVC model rather than server scripting? Currently our site is built with a closed source hypertext preprocessor much like PHP. So it would be easier for us to script another site, but if we would gain performance via a MVC model, then that's what we need. I am not very familiar with developing via MVC, any good tutorials out there or good places to start? -Adam -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
Michael Yanowitz wrote: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' > > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. > > > Thanks in advance: > Michael Yanowitz You can do things with function attributes def foo(x): foo.static += x return foo.static foo.static = 0 If you are going to set function attributes a lot, then you might like to addd an attriute setter decorator to your toolbox: def attributeSetter( **kw): " decorator creator: initialises function attributes" def func2(func): " decorator: initialises function attributes" func.__dict__.update(kw) return func return func2 def accumulator(n): """ return an accumulator function that starts at n >>> x3 = accumulator(3) >>> x3.acc 3 >>> x3(4) 7 >>> x3.acc 7 """ @attributeSetter(acc = n) def accum(i): accum.acc+= i return accum.acc return accum - Paddy -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On 2006-07-31 17:28:00, Cliff Wells wrote: >> I assume you don't agree... :) > > I certainly don't. [...] > Also, saying "a few years ago I did some research" in software terms is > pretty much equivalent to saying "I don't know". Exactly. So what's your point with this comment? I stated what was my impression at the time, with the hope that others might want to comment. Thanks for the comment. OTOH, anybody who says "I know" regarding a comparison in reliability between databases must have pretty good data to back that up. Few have. Most are in the "I don't know, but my impression is that ..." group. Gerhard -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
On Mon, 2006-07-31 at 15:21 -0400, Michael Yanowitz wrote: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' > > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. BTW, I'm assuming this example was contrived. In real life, I wonder why you'd ever want to use anything besides: bits = [ 0 ] * 16 bits [ 4 ] = 1 print "Bit Array:" print ' '.join ( bits ) Having a "set_bit" function seems redundant when the language syntax directly supports what you are trying to do. Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
On Mon, 2006-07-31 at 13:37 -0700, Cliff Wells wrote:
> On Mon, 2006-07-31 at 13:02 -0700, Cliff Wells wrote:
>
>
> > @attrs ( bits = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] )
>
> Also, IMO, it's a bit more readable to write:
>
> bits = [ 0 for i in range ( 16 ) ]
Or even:
bits = [ 0 ] * 16
Just be careful to only use that style when the contents of the array
are non-mutable. The list comp does the right thing in that case (at
risk of going on a tangent):
Right:
>>> bits = [ { } for i in range ( 16 ) ]
>>> bits
[{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}]
>>> bits [ 0 ][ 'a' ] = 1
>>> bits
[{'a': 1}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}]
Wrong:
>>> bits = [ {} ] * 16
>>> bits [ 0 ][ 'a' ] = 1
>>> bits
[{'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1},
{'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1}, {'a': 1},
{'a': 1}, {'a': 1}]
>>>
Regards,
Cliff
--
http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
On Mon, 2006-07-31 at 13:02 -0700, Cliff Wells wrote: > @attrs ( bits = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] ) Also, IMO, it's a bit more readable to write: bits = [ 0 for i in range ( 16 ) ] which avoids the necessity of counting the zeros to know how many there are. Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
Michael Yanowitz a écrit : > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i Syntax error >while (i < len(bits): > print bits[i], Nice infinite loop... Python's canonical way to iterate over a sequence is the for loop: for bit in bits: print bit, And FWIW, for what you want to do, you don't even need a loop: print "\n".join(map(str, bits)) >print '\n' > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. While there are some more or less hackish solutions (cf Roel answers and my answers to it), the usual way to have functions maintaining state is to define a class and instanciate it. Note that Python's functions are objects, and that it's possible to write your own callable objects too if you really want a function call syntax: class Setbit(object): def __init__(self): self._bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] def call(self, index, value): self._bits[index] = value def values(self): return self._bits[:] set_bit = Setbit() set_bit(1, 1) print "".join(map(str, set_bit.values())) -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
On Mon, 2006-07-31 at 15:21 -0400, Michael Yanowitz wrote: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' Many people suggest that using a class for this is the Python idiom (and perhaps it is), but I prefer to use a decorator for adding attributes to functions in this case: def attrs ( **kwds ): ''' taken from PEP 318 ''' def decorate ( f ): for k in kwds: setattr ( f, k, kwds [ k ] ) return f return decorate @attrs ( bits = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] ) def set_bit ( idx, val ): set_bit.bits [ idx ] = int ( bool ( val ) ) print "Bit Array:" for i in set_bit.bits: print i, print >>> set_bit ( 4, 1 ) Bit Array: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 >>> set_bit ( 5, 1 ) Bit Array: 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 Regards, Cliff -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On Mon, 2006-07-31 at 17:12 -0300, Gerhard Fiedler wrote: > On 2006-07-31 15:00:15, Bruno Desthuilliers wrote: > > > In fact, the real question IMHO is: what would MySQL advantage over > > PostgreSQL be ?-) > > A few years ago I did some research, and the result was that while > PostgreSQL was claimed to have more features and a better design, the > reports of database corruption seemed to have been more frequent than with > MySQL. The usual reason given was that MySQL was more mature. > > I assume you don't agree... :) I certainly don't. MySQL provides two different ways to corrupt your data: actual database corruption *and* data integrity corruption. You can escape the second by using InnoDB rather than MyISAM tables, but that increases your chances of the first (InnoDB not being as "mature" as either MyISAM or PostgreSQL). Also, saying "a few years ago I did some research" in software terms is pretty much equivalent to saying "I don't know". Regards, Cliff -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
Roel Schroeven a écrit : > Michael Yanowitz schreef: > >> Is it possible to have a static variable in Python - a local >> variable in a function that retains its value. >> (snip) > > You could do it by defining static_bits as a keyword parameter with a > default value: > (snip) > It might be a better idea to use a class for this though: > (snip) Last solution being to use a closure: def make_bits(): bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] def set_bit(bit_index, bit_value): bits[bit_index] = bit_values def get_bits(): # returns a copy so we don't overwrite return bits[:] return set_bit, get_bits set_bit, get_bits = make_bits() But the better solution is probably to make it a class. -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
[EMAIL PROTECTED] wrote: > tac-tics: >> If you declare bits in set_bit() as "global bits = ...", it will create >> it as a global variable without you having to declare it outside of the >> function. Just be careful about name conflicts. > > Are you sure? > > def fun(): > global x = 10 > fun() > print x > > Bye, > bearophile > This works for me: >>> def fun(): global x x = 10 >>> fun() >>> print x 10 >>> But of course: >>> def fun(): global x = 10 SyntaxError: invalid syntax >>> -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for my web site
On 2006-07-31 15:00:15, Bruno Desthuilliers wrote: > In fact, the real question IMHO is: what would MySQL advantage over > PostgreSQL be ?-) A few years ago I did some research, and the result was that while PostgreSQL was claimed to have more features and a better design, the reports of database corruption seemed to have been more frequent than with MySQL. The usual reason given was that MySQL was more mature. I assume you don't agree... :) Gerhard -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
On Mon, 2006-07-31 at 15:21, Michael Yanowitz wrote: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' > > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. Python does not have static variables in the sense that C does. You can fake it in various ways, though. If I had to do it, I'd define a callable object instead of a function, along the lines of this: class BitSetter(object): def __init__(self): self.bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] def __call__(self, bit_index, bit_value): self.bits[bit_index] = bit_value # do something with self.bits here... print self.bits set_bit = BitSetter() Now you can call set_bit(...) as if it were a function, and it'll behave the way you want. Hope this helps, Carsten. -- http://mail.python.org/mailman/listinfo/python-list
Python server j2me client ssl socket handshake error
I try to write simple midlet in java to connect with my server which
monitors processes in my PC. I've written almost everything and now
I've spend 4 days trying to set up a connection between them. Without
ssl everything works fine.
Here is my fragment of server program:
def verify_cb(conn, cert, errnum, depth, ok):
print 'Got certificate: %s' % cert.get_subject()
return ok
HOST = "192.168.1.30"
PORT = 5007 # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ctx = SSL.Context(SSL.SSLv3_METHOD)
ctx.set_verify(SSL.VERIFY_NONE, verify_cb)
ctx.use_certificate_file('server.pem')
ctx.use_privatekey_file('server.pem')
ss = SSL.Connection(ctx,s)
ss.bind((HOST, PORT))
from src.xmlFunc import validateXml
while True :
ss.listen(1)
conn, addr = ss.accept()
print 'Connected by', addr
while True :
_data = conn.recv(1024)
print _data
if not _data: break
_data = "req_auth"
conn.send(_data)
conn.close()
in my client java application:
SecureConnection socket =
(SecureConnection)Connector.open("ssl://192.168.1.30:5007",Connector.READ_WRITE);
when I run server and client program the clients stops on line above.
Server accepts the connection and when I debug next line I get an
error:
[('SSL routines', 'SSL3_READ_BYTES', 'sslv3 alert handshake failure') ,
('SSL routines', 'SSL3_READ_BYTES', 'sslv3 alert handshake failure')]
What I know is that when I use : openssl s_client -connect
192.168.1.30:5007 -ssl3
the output is:
CONNECTED(0003)
depth=0 /C=PL/ST=slaskie/L=pszczyna/O=Internet Widgits Pty Ltd/CN=aloha
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=PL/ST=slaskie/L=pszczyna/O=Internet Widgits Pty Ltd/CN=aloha
verify return:1
---
Certificate chain
0 s:/C=PL/ST=slaskie/L=pszczyna/O=Internet Widgits Pty Ltd/CN=aloha
i:/C=PL/ST=slaskie/L=pszczyna/O=Internet Widgits Pty Ltd/CN=aloha
---
Server certificate
-BEGIN CERTIFICATE-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I've read tons of tutorials and still have nothing what gives me the
solution of this problem.
I have Python 2.4.3 (#2, Apr 27 2006, 14:43:58)
[GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] with OpenSSL 0.9.8a 11 Oct 2005
Can somebody help me...
Best regards, Charles Zemanek
--
http://mail.python.org/mailman/listinfo/python-list
Re: BCD List to HEX List
[EMAIL PROTECTED] wrote: > Philippe Martin wrote: > > Yes, I came here for the "algorithm" question, not the code result. > > To turn BCD x to binary integer y, > > set y to zero > for each nibble n of x: > y = (((y shifted left 2) + y) shifted left 1) + n Yeah yeah yeah i.e. y = y * 10 + n he's been shown that already. Problem is that the OP needs an 8-decimal-digit (32-bits) answer, but steadfastly maintains that he doesn't "have access to" long (32-bit) arithmetic in his C compiler!!! > > Do you need instruction on extracting nibbles, and shifting and > adding integers? > > A problem this small and simple does not call for a prototype. -- http://mail.python.org/mailman/listinfo/python-list
Re: list of lists of lists ....
thanks for all your answers yomgui yomgui wrote: > > Hi, > > I have a list of data (type A) > my list can includes element of type A or a lists, > these list can includes element of type A or a lists, and so on ... > > is there a simple way to obtain a single list of all the elemets > of type A ? > > thanks > > yomgui -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
tac-tics: > If you declare bits in set_bit() as "global bits = ...", it will create > it as a global variable without you having to declare it outside of the > function. Just be careful about name conflicts. Are you sure? def fun(): global x = 10 fun() print x Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Windows vs. Linux
jean-michel bain-cornu wrote:
>Take care to use os.sep
This is an important point. You should read up on the os.path module to
make sure you are doing things in a platform independent way, for
example, its better to use:
os.path.join('my', 'favorite', 'dir')
than
"\\".join(['my', 'favorite', 'dir'])
because the latter will bonk on linux. The former is platform
independent. This hits at the same issue as using os.sep:
os.sep.join(['my', 'favorite', 'dir'])
But os.path has takes care of many of these issues in one module.
James
--
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095
http://www.jamesstroud.com/
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Borg vs. Module
I am making a web app, made up of many modules that all need access to some important data, like the current session data, cookies, navigation history, post/get variables, etc. I decided to go with the 'Borg' idea, by assigning the __dict__ of an object to a class variable so that each instantiation of the Borg() would share the same data. That way I can either pass the Borg around, or just Borg() it if I need it in some obscure place. Then I read an argument that it usually makes more sense to just have a module with the data and functions that I need, which all the other modules can simply import. Since I only need one instance, I could just stuff data and call 'methods' on this module, probably without even changing existing syntax. Are there any arguments as to which method is better? Thanks, Toby -- Posted via a free Usenet account from http://www.teranews.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
Michael Yanowitz wrote: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' > > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. If you declare bits in set_bit() as "global bits = ...", it will create it as a global variable without you having to declare it outside of the function. Just be careful about name conflicts. -- http://mail.python.org/mailman/listinfo/python-list
Re: Static Variables in Python?
Michael Yanowitz schreef: > Is it possible to have a static variable in Python - > a local variable in a function that retains its value. > > For example, suppose I have: > > def set_bit (bit_index, bit_value): >static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >bits [bit_index] = bit_value > >print "\tBit Array:" >int i >while (i < len(bits): > print bits[i], >print '\n' > > >I realize this can be implemented by making bits global, but can > this be done by making it private only internal to set_bit()? I don't > want bits to be reinitialized each time. It must retain the set values > for the next time it is called. You could do it by defining static_bits as a keyword parameter with a default value: >>> def set_bit(bit_index, bit_value, static_bits=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]): static_bits[bit_index] = bit_value return static_bits >>> set_bit(2, 1) [0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >>> set_bit(3, 1) [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >>> set_bit(2, 0) [0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] It might be a better idea to use a class for this though: >>> class Bits(object): def __init__(self): self.bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] def set(self, index, value): self.bits[index] = value return self.bits >>> bits = Bits() >>> bits.set(2, 1) [0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >>> bits.set(3, 1) [0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] >>> bits.set(2, 0) [0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] When using a class, you can have different lists of bits independently of each other in a program. And you can define other operations on the bits: you could for example create methods to set or clear all bits at once. With your approach, set_bit is the only function that has access to the bits so you can't easily create other operations. -- If I have been able to see further, it was only because I stood on the shoulders of giants. -- Isaac Newton Roel Schroeven -- http://mail.python.org/mailman/listinfo/python-list
Re: XML parsing and writing
Nice package ElementTree is but sadly it doesn't have a pretty print, well, guess I'll have to do it myself, if you have one already can you please give it to me? thanks :) Stefan Behnel wrote: > c00i90wn wrote: > > Hey, I'm having a problem with the xml.dom.minidom package, I want to > > generate a simple xml for storing configuration variables, for that > > purpose I've written the following code, but before pasting it I'll > > tell you what my problem is. On first write of the xml everything goes > > as it should but on subsequent writes it starts to add more and more > > unneeded newlines to it making it hard to read and ugly. > > Maybe you should try to get your code a little cleaner first, that usually > helps in finding these kinds of bugs. Try rewriting it with ElementTree or > lxml, that usually helps you in getting your work done. > > http://effbot.org/zone/element-index.htm > http://codespeak.net/lxml/ > > Stefan -- http://mail.python.org/mailman/listinfo/python-list
Static Variables in Python?
Is it possible to have a static variable in Python - a local variable in a function that retains its value. For example, suppose I have: def set_bit (bit_index, bit_value): static bits = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] bits [bit_index] = bit_value print "\tBit Array:" int i while (i < len(bits): print bits[i], print '\n' I realize this can be implemented by making bits global, but can this be done by making it private only internal to set_bit()? I don't want bits to be reinitialized each time. It must retain the set values for the next time it is called. Thanks in advance: Michael Yanowitz -- http://mail.python.org/mailman/listinfo/python-list
