ANN: PyTables 1.1 released
= Announcing PyTables 1.1 = After quite a few testing iterations, the PyTables development team is happy to announce the availability of PyTables 1.1. On this version you will find support for a nice set of new features, like nested datatypes, enumerated datatypes, nested iterators (for reading only), support for native HDF5 multidimensional attributes, a new object for dealing with compressed, non-enlargeable arrays (CArray), bzip2 compression support and more. Many bugs has been addressed as well. Go to the PyTables web site for downloading the new beast: http://pytables.sourceforge.net/ or keep reading for more info about the new features and bugs fixed. Changes more in depth = Improvements: - Support for nested datatypes is in place. You can now made columns of tables that host another columns for an unlimited depth (well, theoretically, in practice until the python recursive limit would be reached). Convenient NestedRecArray objects has been implemented as data containers. Cols and Description accessors has been improved so you can navigate on the type hierarchy very easily (natural naming is has been implemented for the task). - ``Table``, ``EArray`` and ``VLArray`` objects now support enumerated types. ``Array`` objects support opening existing HDF5 enumerated arrays. Enumerated types are restricted sets of ``(name, value)`` pairs. Use the ``Enum`` class to easily define new enumerations that will be saved along with your data. - Now, the HDF5 library is responsible to do data conversions when the datasets are written in a machine with different byte-ordering than the machine that reads the dataset. With this, all the data is converted on-the-fly and you always get native datatypes in memory. I think this approach to be more convenient in terms of CPU consumption when using these datasets. Right now, this only works for tables, though. - Added support for native HDF5 multidimensional attributes. Now, you can load native HDF5 files that contains fully multidimensional attributes; these attributes will be mapped to NumArray objects. Also, when you save NumArray objects as attributes, they get saved as native HDF5 attributes (before, NumArray attributes where pickled). - A brand-new class, called CArray, has been introduced. It's mainly like an Array class (i.e. non-enlargeable), but with compression capabilities enabled. The existence of CArray also allows PyTables to read native HDF5 chunked, non-enlargeable datasets. - Bzip2 compressor is supported. Such a support was already in PyTables 1.0, but forgot to announce it. - New LZO2 (http://www.oberhumer.com/opensource/lzo/lzonews.php) compressor is supported. The installer now recognizes whether LZO1 or LZO2 is installed, and adapts automatically to it. If both are installed in your system, then LZO2 is chosen. LZO2 claims to be fully compatible (both backward and forward) with LZO1, so you should not experience any problem during this transition. - The old limit of 256 columns in a table has been released. Now, you can have tables with any number of columns, although if you try to use a too high number (i.e. 1024), you will start to consume a lot of system resources. You have been warned!. - The limit in the length of column names has been released also. - Nested iterators for reading in tables are supported now. - A new section in tutorial about how to modify values in tables and arrays has been added to the User's Manual. Backward-incompatible changes: - None. Bug fixes: - VLArray now correctly updates the number of rows internal counter when opening an existing VLArray object. Now you can add new rows to existing VLA's without problems. - Tuple flavor for VLArrays now works as intended, i.e. reading VLArray objects will always return tuples even in the case of multidimensional Atoms. Before, this operations returned a mix of tuples and lists. - If a column was not able to be indexed because it has too few entries, then _whereInRange is called instead of _whereIndexed. Fixes #1203202. - You can call now Row.append() in the middle of Table iterators without resetting loop counters. Fixes #1205588. - PyTables used to give a segmentation fault when removing the last row out of a table with the table.removeRows() method. This is due to a limitation in the HDF5 library. Until this get fixed in HDF5, a NotImplemented error is raised when trying to do that. Address #1201023. - You can safely break a loop over an iterator returned by Table.where(). Fixes #1234637. - When removing a Group with hidden child groups, those are effectively closed now. - Now, there is a distinction between shapes 1 and (1,) in tables. The former represents a scalar, and the later a 1-D array with just one element. That follows the numarray convention for records, and makes more
ANN: PyMedia 1.3.5-pre1 for Windows
Hi all, Just wanted to let you know that early prerelease of PyMedia 1.3.5 is out. What is it ? PyMedia is a media library for Python based on the following libraries: libavcodec, libavformat, libdvdcss, libdvdread It has simple interface and yet powerfull for writing multimedia apps in Python. Features 1. Audio decoding/encoding for the following types: - mp2, mp3, ac3, ogg, wma 2. Video decoding/encoding for the following types: - mpeg1,2 ( dvd, vcd, svcd ), mpeg4, xvid, asf, mov 3. Video/Audio muxing for mpeg files only 4. Direct access to sound device( Input/Output ). Input is synchronous in Linux. 5. Sound manipulation classes such as Resampler and SpectrAnalyzer 6. Direct access to cdda tracks for easy grabbing and encoding Audio CDs 7. Direct access to dvd tracks for playing DVD movies( all types ) 8. Ability to convert video frames from YUV-BMP formats 9. Simple interface and portability( Windows/Linux/cygwin ) What's new 1. FLAC support 2. Muxer object is suitable for audio and video and become global for pymedia. It enables simpler audio/video demuxing 3. Video playback rate was tuned to be as close to mplayer as possible 4. Precompiled version for Python2.4 on Windows available 5. Sound module for Windows works Bugs 1. AAC decoder does not work correctly 2. WMA decoder has been corrupted and may not play somethimes 3. Video encoding has bugs with PTS/DTS handling 4. Muxing for OGG does not work Downoad Just check the http://pymedia.sourceforge.net and download the latest Windows binary version( 1.3.5-pre1 ). There is no tarball available since existing version resides in CVS. You're welcome to try it out on Linux ! How to use First of all you can see PyCar application http://pymedia.org/pycar/ For everything else see the tutorials on a web site http://pymedia.org/tut/ Please note that some of the chapters may not be up-to-date. Let me know if something does not work for you ! Enjoy, Dmitry/ -- XS2Mail: Check your mail anywhere http://www.xs2mail.com/ -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
ANN: KirbyBase 2.0 beta 1
I would like to announce the first beta of version 2 of KirbyBase, a
simple, pure-Python database management system that stores it's data in
plain-text files. Version 2 is a total rewrite of the code, a major
change in the api, and a major improvement (I hope) in the syntax used
to express queries, inserts, and updates.
Because of the dramatic changes, I wanted to get this beta out in the
hopes that I can get some early feedback on the new api and syntax,
before releasing version 2.
You can download the beta from here:
http://www.netpromi.com/files/KirbyBase_Python_2.0_beta_1.zip
Included in the zip file is a script, kbtest.py that has numerous
examples of the new syntax. I'll try to give you a small flavor of it here:
To specify a select query in the old version of KirbyBase you would do
something like this:
db.select('plane.tbl', ['country', 'speed'], ['USA', ' 300'])
which says, Select all planes from the US with a speed greater than 300mph.
In the new version of KirbyBase you could state the query using named
arguments:
plane_tbl.select(country='USA', speed=' 300')
or, using a dictionary:
plane_tbl.select({'country': 'USA', 'speed': ' 300'})
or, you could even use a lambda, like this:
plane_tbl.select(lambda r: r.country == 'USA' and r.speed 300)
I personally prefer the latter, but I realize that lambda's are quite
controversial just now, so I offer alternative ways to specify select
criteria. One of the cool things about using lambdas is that it gives
you more power in your selects, like being able to use regular
expressions and being able to use or logic.
Anyway, this is just a small taste of the changes. The changes actually
go much deeper and, I think, make the resulting api much more
Pythonic. About the only thing that hasn't changed is the table
structure in the physical file (well, there is one small change, but it
is easily made).
It is currently a good bit slower than the current version of KirbyBase;
I will work on optimizing it after the api is frozen.
For those of you who have used the Ruby version of KirbyBase, this new
Python version closely resembles that, while trying to be as Python-like
as possible.
There is no manual yet, but I think you can get a good feel for the
differences by looking at kbtest.py.
I would be very interested in any feedback you can give me on the new
version.
Jamey Cribbs
[EMAIL PROTECTED]
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Australian Open Source Developers' Conference
Announcement: OSDC 2005 is up and running. The second Australian OSDC (Open Source Developers' Conference) will be held on the 5th, 6th and 7th of December 2005 at Monash University in Melbourne. The 2004 Conference was an outstanding success with over 160 delegates attending, including a significant number from interstate and overseas. The quality of presentations and general enthusiasm of the attendees confirmed the growing reputation and strength of open source development in Australia. Most of last year's attendees plan to attend the conference again in 2005. In 2005, OSDC will be even bigger and better. OSDC is a great opportunity for open source devotees to attend an affordable conference where the main focus is software development. Companies and other organisations will find the conference an ideal avenue for providing professional development for staff, identifying trends and partners and promoting their services. The conference web site is: http://www.osdc.com.au -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: Why does python break IEEE 754 for 1.0/0.0 and 0.0/0.0?
Grant Edwards [EMAIL PROTECTED] writes: I've read over and over that Python leaves floating point issues up to the underlying platform. Please read the conversation Tim and I are having in the Re: math.nroot [was Re: A brief question.] elsewhere in this same newsgroup. Cheers, mwh -- Also, does the simple algorithm you used in Cyclops have a name? Not officially, but it answers to hey, dumb-ass! -- Neil Schemenauer and Tim Peters, 23 Feb 2001 -- http://mail.python.org/mailman/listinfo/python-list
Re: math.nroot [was Re: A brief question.]
Tim Peters [EMAIL PROTECTED] writes: [Tim] Ah, but as I've said before, virtually all C compilers on 754 boxes support _some_ way to get at this stuff. This includes gcc before C99 and fenv.h -- if the platforms represented in fpectlmodule.c were happy to use gcc, they all could have used the older gcc spellings (which are in fpectlmodule.c, BTW, under the __GLIBC__ #ifdef). [Michael] Um, well, no, not really. The stuff under __GLIBC___ unsurprisingly applies to platforms using the GNU project's implementation of the C library, and GCC is used on many more platforms than just that (e.g. OS X, FreeBSD). Good point taken: parings of C compilers and C runtime libraries are somewhat fluid. So if all the platforms represented in fpectlmodule.c were happy to use glibc, they all could have used the older glibc spellings. Apparently the people who cared enough on those platforms to contribute code to fpectlmodule.c did not want to use glibc, though. It may not have been possible for them, after a little googling. It seems that while glibc is theoretically portable to systems other than linux, in practice it ain't. In the end, I still don't know why there would be a reason to hope that an endless variety of other libms would standardize on the C99 spellings. Point. But as you said in the post I replied to, soon (maybe even now) there won't be an endless variety of other libms to worry about. ... Even given that, the glibc section looks mighty Intel specific to me (I don't see why 0x1372 should have any x-architecture meaning). Why not? I don't know whether glibc ever did this, but Microsoft's spelling of this stuff used to, on Alphas (when MS compilers still supported Alphas), pick apart the bits and rearrange them into the bits needed for the Alpha's FPU control registers. Well, I considered that but decided that it was far too insane. Maybe that was insufficient cynicism :) In any case, glibc's docs today only mention the C99 (and C99-like, for setting traps) interfaces, and I can't be arsed to go through old docs to see if _FPU_SETCW or __setfpucw were ever documented and if so what they were documented to do. One thing GCC doesn't yet support, it turns out, is the #pragma STDC FENV_ACCESS ON gumpf, which means the optimiser is all too willing to reorder feclearexcept(FE_ALL_EXCEPT); r = x * y; fe = fetestexcept(FE_ALL_EXCEPT); into feclearexcept(FE_ALL_EXCEPT); fe = fetestexcept(FE_ALL_EXCEPT); r = x * y; Argh! Declaring r 'volatile' made it work. Oh, sigh. One of the lovely ironies in all this is that CPython _could_ make for an excellent 754 environment, precisely because it does such WYSIWYG code generation. One of my motivations here (other than the instantly discountably one of aesthetic purity :) is to make Python a good system for prototyping numeric codes. Optimizing-compiler writers hate hidden side effects, and every fp operation in 754 is swimming in them -- but Python couldn't care much less. Thing is, I don't see how this particular stuff should be that hard to implement -- if you have an optimizing compiler that can move code around, presumably you have some way of saying what can't be moved past what else. But you're not going to catch me diving into GCC's sources :) (In other news, passing -frounding-math to GCC may also have the desired effect, but I haven't tested this). Anyway, you're rediscovering the primary reason you have to pass a double lvalue to the PyFPE_END_PROTECT protect macro. PyFPE_END_PROTECT(v) expands to an expression including the subexpression PyFPE_dummy((v)) where PyFPE_dummy() is an extern that ignores its double* argument. The point is that this dance prevents C optimizers from moving the code that computes v below the code generated for PyFPE_END_PROTECT(v). Since v is usually used soon after in the routine, it also discourages the optimizer from moving code up above the PyFPE_END_PROTECT(v) (unless the C does cross-file analysis, it has to assume that PyFPE_dummy((v)) may change the value of v). These tricks may be useful here too -- fighting C compilers to the death is part of this game, alas. I did read those comments. Maybe passing the address of the result variable to the routine that checks the flags and decides whether to raise an exception would be a good hack (and, yes, writing that function in another file so GCC doesn't bloody well inline it and then rearrange all my code). PyFPE_END_PROTECT() incorporates an even stranger trick, and I wonder how gcc deals with it. The Pentium architecture made an agonizing (for users who care) choice: if you have a particular FP trap enabled (let's say overflow), and you do an fp operation that overflows, the trap doesn't actually fire until the _next_ fp operation (of any kind) occurs. You can honest-to-God have, e.g., an overflowing fp add on an
Python Programming Contest
I've decided that it would be be fun to host a weekly Python programming contest. The focus will be on algorithms that require a bit of thought to design but not much code to implement. I'm doing to judge the solutions based on execution speed. It sucks but that is the easiest important consideration to objectively measure. I'll also indicated which solutions I think are good examples of Python design. Hopefully, people's solutions can provide a resource for people looking for best practice examples and also for people looking for performance ideas. You can find the first problem here: http://www.sweetapp.com/pycontest/contest1 I'm always looking for feedback, so let me know what you think or if you have any ideas for future problems. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Are you aware of http://mathschallenge.net/index.php?section=project ? The The focus will be on algorithms that require a bit of thought to design but not much code to implement. part seems common, although your problem domain probably is larger. /Simon -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Brian Quinlan wrote: I've decided that it would be be fun to host a weekly Python programming contest. The focus will be on algorithms that require a bit of thought to design but not much code to implement. I'm doing to judge the solutions based on execution speed. It sucks but that is the easiest important consideration to objectively measure. I'll also indicated which solutions I think are good examples of Python design. Hopefully, people's solutions can provide a resource for people looking for best practice examples and also for people looking for performance ideas. You can find the first problem here: http://www.sweetapp.com/pycontest/contest1 I'm always looking for feedback, so let me know what you think or if you have any ideas for future problems. Cheers, Brian I am not sure if it is a good idea to use a LiveCD for OS when you are testing for speed. CD access speeds fluctuate and may even impact performance even if you start measuring after the module loading is complete. -- http://mail.python.org/mailman/listinfo/python-list
Documenting extension modules?
Hiho,
I can't seem to find a proper way to document my extension module.
Following the C API doc:
static PyMethodDef ioMethods[] = {
{o_count, o_count, METH_VARARGS, Return the count of available
MIDI outputs.},
}
lacks:
a) module level documentation
b) function parameters
Also, I'd like to know if there's a typical format for the help string
(but in C), compatible with docstring's
short desription
long description
Any pointers please?
TIA,
Francois
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using hotshot for timing and coverage analysis
Aloha, hotshot.Profile has flags for recording timing per line and line events. Even if i had both set to 1 i still get only the standard data (time per call). Is there any document available that has examples how to use the hotshot for converage analysis and to display timing per line? Hoping for an answer and wishing a happy day LOBI -- http://mail.python.org/mailman/listinfo/python-list
Re: Documenting extension modules?
Francois De Serres wrote:
Hiho,
I can't seem to find a proper way to document my extension module.
Following the C API doc:
static PyMethodDef ioMethods[] = {
{o_count, o_count, METH_VARARGS, Return the count of available
MIDI outputs.},
}
lacks:
a) module level documentation
In your initmodule function, assign a PyStr object to __doc__.
b) function parameters
Add that information to your docstring. I don't think that there is a
way to get this information via inspect.
Also, I'd like to know if there's a typical format for the help string
(but in C), compatible with docstring's
short desription
long description
char *o_count__doc__;
char *o_count__doc__ = short description\n\
\n\
long description\n;
--
Robert Kern
[EMAIL PROTECTED]
In the fields of hell where the grass grows high
Are the graves of dreams allowed to die.
-- Richard Harter
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Kamaelia Talk at Open Tech 2005, anyone for sprinting?
Hi, Apologies first to those outside the UK... Open Tech 2005* is a follow on from previous years' NotCon events which are community driven low cost events by geeks developers for geeks developers. (Much like Pycon Europython but much more general in nature) Website: http://www.ukuug.org/events/opentech2005/ Where/When: Hammersmith, London, UK, July 23rd The reason I'm posting about it is because I'm going to be talking about Kamaelia there. Unlike Python UK Europython this is going to be a 15 minute talk, so I'll be focussing on what we've been doing with Kamaelia, what you can do with Kamaelia, and so on rather than going through internals. In addition since my talk on Kamaelia is before lunch, I'd really like to help people get started using Kamaelia (this really the point of giving talks!), so I'm going to be running a small ad-hoc/mini sprint that afternoon. There's a variety of possible sprintable things ranging from how to put together simple Kamaelia systems through to using Kamaelia for simplifying networking on Nokia mobiles through to using Kamaelia for writing games (since we have some nice Pygame based components now). I'll probably be sprinting on converting a proof of concept P2P swarming algorithm into a protocol for creating TCP server swarms. This is for joining together multicast islands to make it so that internet broadcasting, rather than narrowcasting, can become a reality for the BBC - which has clear benefits for everyone! (Even though the internet is not TV :) Kamaelia is designed to be able to picked up relatively quickly/easily, but having a working knowledge of python is probably a necessity. If you're interested, please let me know! (Either before, or at Open Tech :) Best Regards, Michael. -- [EMAIL PROTECTED], http://kamaelia.sourceforge.net/ British Broadcasting Corporation, Research and Development Kingswood Warren, Surrey KT20 6NP This message (and any attachments) may contain personal views which are not the views of the BBC unless specifically stated. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Brian I've decided that it would be be fun to host a weekly Python Brian programming contest. The focus will be on algorithms that require Brian a bit of thought to design but not much code to implement. For some of us that's what we do day-in, day-out at work. It's just not called a contest. To make it more challenging, we sometimes leave out the bit of thought part. ;-) Skip -- http://mail.python.org/mailman/listinfo/python-list
Question about basic use of a timer object from timeit module to execute code every so often in a class
I would like a function to be executed every x often.
I was just wondering how to pass the following code correctly. my
object t just doesn't know what checkMail is. How can I tell it that
checkMail is a member of the class MyApp?
thanks in advance,
code is below
class MyApp(wx.App):
def OnInit(self):
frame = wxMainFrame(None, thing)
icon = wx.Icon('foo.bmp', wx.BITMAP_TYPE_ICO)
frame.SetIcon(icon)
self.SetTopWindow(frame)
t = timeit.Timer(checkMail(),30.0)
t.timeit()
return True
def checkMail():
print The number of messages is
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Re: Question about basic use of a timer object from timeit module to execute code every so often in a class
[EMAIL PROTECTED] wrote: I would like a function to be executed every x often. I was just wondering how to pass the following code correctly. my object t just doesn't know what checkMail is. How can I tell it that checkMail is a member of the class MyApp? Reread the documentation for timeit. It doesn't do what you think it does. Look at wxTimer instead. -- Robert Kern [EMAIL PROTECTED] In the fields of hell where the grass grows high Are the graves of dreams allowed to die. -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
James wrote: I am not sure if it is a good idea to use a LiveCD for OS when you are testing for speed. CD access speeds fluctuate and may even impact performance even if you start measuring after the module loading is complete. It didn't seem to matter in my testing. Module loading is done before the test is run. Also, it is easiest to protect my system against malicious code if it is being run on an OS without a writeable filesystem. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
[EMAIL PROTECTED] wrote: Brian I've decided that it would be be fun to host a weekly Python Brian programming contest. The focus will be on algorithms that require Brian a bit of thought to design but not much code to implement. For some of us that's what we do day-in, day-out at work. It's just not called a contest. To make it more challenging, we sometimes leave out the bit of thought part. ;-) Hmmm...I find that I am rarely faced with challenging algorithmic problems in my day-to-day work. I continuously face difficult design decisions but that is a difficult sort of beast all together. This contest is for people who like thinking about algorithms. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create cross-backend python web app
matt [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED]... Hi all- I'm trying to port an ajax spell-checker (http://www.broken-notebook.com/spell_checker/index.php) to use with the moin moin wiki and have been somewhat successful. (By successful I mean I can spell check using the php backend and my python port running as cgi-bin). That looks like an interesting application/component. My question is this: moinmoin runs on many python web backends (cgi-bin/mod-python/twisted/standalone). My spell-checker backend runs as cgi (disclaimer: I've done a bit of php and java(struts) web app programming, but the last python related web programming I did was Zope about 5 years ago (does that even count ? ;) )) because that was the easiest for me to get up to speed on. What is the best way to write cross-backend python web apps? Is there any abstraction I can use? Although a kind of Web middleware standard called WSGI [1] has been proposed to somehow alleviate these kinds of problems, I'd recommend using WebStack [2] to implement a cross-backend solution which will run on CGI, mod_python, Twisted, BaseHTTPServer and other technologies. With cgi-bin, I use the python cgi module, which gives me easy access to form variables, but I'd like to be able to deploy in the other backends as well. What's the best way to do this? Or is a rewrite required for each one? Some might argue that writing directly to WSGI would allow you to re-use your CGI-based code moderately easily whilst having some backend portability. I'd argue that WebStack's API is slightly more high-level and that the WebStack distribution should provide you with everything you need to deploy your application on the backends you've chosen (plus others). Either way, you certainly don't need to rewrite your application for every different environment any more. Paul [1] http://www.python.org/peps/pep-0333.html [2] http://www.python.org/pypi/WebStack -- http://mail.python.org/mailman/listinfo/python-list
Re: using hotshot for timing and coverage analysis
Andreas Lobinger wrote: hotshot.Profile has flags for recording timing per line and line events. Even if i had both set to 1 i still get only the standard data (time per call). Could it be that pstats.Stats doesn't know about hotshot? Haven't checked... What's much more annoying about hotshot is that loading the stats takes ages if one profiles stuff that runs about half a minute or so. At least it does that on Python 2.4.1a0 as shipped with Debian testing a while ago. Is there any document available that has examples how to use the hotshot for converage analysis and to display timing per line? Haven't looked thoroughly yet; all I know is what's in the Python docs. -- Thomas -- http://mail.python.org/mailman/listinfo/python-list
Re: Documenting extension modules?
Robert Kern wrote:
Francois De Serres wrote:
Hiho,
I can't seem to find a proper way to document my extension module.
Following the C API doc:
static PyMethodDef ioMethods[] = {
{o_count, o_count, METH_VARARGS, Return the count of available
MIDI outputs.},
}
lacks:
a) module level documentation
In your initmodule function, assign a PyStr object to __doc__.
b) function parameters
Add that information to your docstring. I don't think that there is a
way to get this information via inspect.
Also, I'd like to know if there's a typical format for the help string
(but in C), compatible with docstring's
short desription
long description
char *o_count__doc__;
char *o_count__doc__ = short description\n\
\n\
long description\n;
Mucho thankees Robert.
--
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Re: Documenting extension modules?
Re: assigning a PyStr object to __doc__, take a look at Py_InitModule3, which does that for you. Then you have the PyDoc_STRVAR macro in python.h that you might want to use (see definition below). But as Robert already told you, you'll need to provide the necessary information about i.e. parameters yourself in the docstrings. /* Define macros for inline documentation. */ #define PyDoc_VAR(name) static char name[] #define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str) #ifdef WITH_DOC_STRINGS #define PyDoc_STR(str) str #else #define PyDoc_STR(str) #endif -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I import a py script by its absolute path name?
You probably actually want:
import sys
sys.path.instert(0, r'c:\xxx\yyy')
m = __import__('zzz', globals(), locals(), [])
del sys.path[0]
Because if another module named zzz exists in your path. Appending will pick
those versions up first. Then you delete the path you just added so that you
don't have any problems importing other modules that may have the same names a
python files in the path you just added.
-Chris
On Thu, Jul 14, 2005 at 02:52:31PM +0300, Edvard Majakari wrote:
could ildg [EMAIL PROTECTED] writes:
I want to import c:\xxx\yyy\zzz.py into my programme,
What should I do?
Thank you~
import sys
sys.path.append('c:\xxx\yyy')
import zzz
(Untested, similar idiom would work in *nix systems, never programmed in
Windows)
However, I guess it is not very usual you should need to import stuff from
arbitrary locations. Consider publishing those modules in normal Python
include path (just see what ''print sys.path'' produces)
--
# Edvard Majakari Software Engineer
# PGP PUBLIC KEY availableSoli Deo Gloria!
$_ = '456476617264204d616a616b6172692c20612043687269737469616e20'; print
join('',map{chr hex}(split/(\w{2})/)),uc
substr(crypt(60281449,'es'),2,4),\n;
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Re: Python Programming Contest
On 7/15/05, Brian Quinlan [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Brian I've decided that it would be be fun to host a weekly Python Brian programming contest. The focus will be on algorithms that require Brian a bit of thought to design but not much code to implement. For some of us that's what we do day-in, day-out at work. It's just not called a contest. To make it more challenging, we sometimes leave out the bit of thought part. ;-) Hmmm...I find that I am rarely faced with challenging algorithmic problems in my day-to-day work. I continuously face difficult design decisions but that is a difficult sort of beast all together. This contest is for people who like thinking about algorithms. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list Questions: Will that random test generator (included in the download) be used to perform the actual testing? How many tests will be run on each program? What is the penalty for a wrong answer? Peace Bill Mill PS - check out http://www.sleepinginairports.net/ before you say you can't sleep in the airport :) -- http://mail.python.org/mailman/listinfo/python-list
Reading variables from a forked child (Python C/API)
Greetings,
I'm having a little trouble getting an idea running. I am writing a C
program which is really a frontend to a Python program. Now, my C
program starts up, does some initialisation like initialisation of it's
variables and Py_Initialize() and then it fork()s. After forking the
child launches the python program with Py_Main() and with the parent I
want to be able to read the variables of the Python program. I have
tried many ways but cannot find a solution to do this. The ONLY testcase
in fact that I could get working is this:
#include Python.h
#include stdio.h
int main(){
char* buffer;
PyObject* mod;
PyObject* dict;
PyObject* obj;
Py_Initialize();
PyRun_SimpleString(foo = 'bar');
mod = PyImport_AddModule(__main__);
dict = PyModule_GetDict(mod);
obj = PyMapping_GetItemString(dict, foo);
buffer = PyString_AsString(obj);
printf(buffer);
Py_Finalize();
return 0;
}
And that only proves to me that I can get the variables out of python,
nothing to do with forking. When i try doing very much the same thing to
a forked child I get sedfaults. In other words the child gets
Py_Main()'d and executes the child, while in the parent i do much the
same as the above with the exception of PyImport_AddModule() being
changed to PyImport_ImportModule() because main is already preset i gather.
So my questions are these:
Does the fact that I initialise before the fork have anything to do with
my failure? And if so, is it because some pointers are invalidated?
Is the problem to do with the inability to perform operations on a
python environment initialised through C while it's executing? Because
i'm technically executing operations on it from the parent while the
child in the same environment is running the program.
In the program that the child is running, i need to access some
variables it has in __main__. main also has an instantiated object 'd'
which i also need some variables from, i.e. __main__.d.foo. How can I
access these?
Overall, I would REALLY appreciate an example of how to do what I want
to achieve, examples help me a lot so if you wouldn't mind typing one up
or pointing me to some relevant documentation i'd appreciate it.
Thankyou.
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Re: Documenting extension modules?
Simon Dahlbacka wrote: Re: assigning a PyStr object to __doc__, take a look at Py_InitModule3, which does that for you. got it, thx. Then you have the PyDoc_STRVAR macro in python.h that you might want to use (see definition below). But as Robert already told you, you'll need to provide the necessary information about i.e. parameters yourself in the docstrings. /* Define macros for inline documentation. */ #define PyDoc_VAR(name) static char name[] #define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str) #ifdef WITH_DOC_STRINGS #define PyDoc_STR(str) str #else #define PyDoc_STR(str) #endif beautiful. PS: The following snip from http://python.fyxm.net/peps/pep-0007.html was helpful to me in understanding usage of these macros: - Use the PyDoc_STR() or PyDoc_STRVAR() macro for docstrings to support building Python without docstrings (./configure --without-doc-strings). For C code that needs to support versions of Python older than 2.3, you can include this after including Python.h: #ifndef PyDoc_STR #define PyDoc_VAR(name) static char name[] #define PyDoc_STR(str) (str) #define PyDoc_STRVAR(name, str) PyDoc_VAR(name) = PyDoc_STR(str) #endif - The first line of each fuction docstring should be a signature line that gives a brief synopsis of the arguments and return value. For example: PyDoc_STRVAR(myfunction__doc__, myfunction(name, value) - bool\n\n\ Determine whether name and value make a valid pair.); Always include a blank line between the signature line and the text of the description. If the return value for the function is always None (because there is no meaningful return value), do not include the indication of the return type. - When writing multi-line docstrings, be sure to always use backslash continuations, as in the example above, or string literal concatenation: PyDoc_STRVAR(myfunction__doc__, myfunction(name, value) - bool\n\n Determine whether name and value make a valid pair.); Though some C compilers accept string literals without either: /* BAD -- don't do this! */ PyDoc_STRVAR(myfunction__doc__, myfunction(name, value) - bool\n\n Determine whether name and value make a valid pair.); not all do; the MSVC compiler is known to complain about this. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Bill Mill wrote: On 7/15/05, Brian Quinlan [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Brian I've decided that it would be be fun to host a weekly Python Brian programming contest. The focus will be on algorithms that require Brian a bit of thought to design but not much code to implement. For some of us that's what we do day-in, day-out at work. It's just not called a contest. To make it more challenging, we sometimes leave out the bit of thought part. ;-) Hmmm...I find that I am rarely faced with challenging algorithmic problems in my day-to-day work. I continuously face difficult design decisions but that is a difficult sort of beast all together. This contest is for people who like thinking about algorithms. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list Questions: Will that random test generator (included in the download) be used to perform the actual testing? Yes. With two caveats: 1. I will pick the seed ahead of time so everyone gets the same problem set 2. I will use a local copy of the verification code (for performance reasons) How many tests will be run on each program? Probably a few thousand. If I need more to discriminate between two very similar solutions, then I will do so. What is the penalty for a wrong answer? Infinite. Only correct solutions will be judged on performance. PS - check out http://www.sleepinginairports.net/ before you say you can't sleep in the airport :) Nice :-) Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about basic use of a timer object from timeit module to execute code every so often in a class
I've seen both documentation for using timeit as simply a timer to measure preformance, but also a random page here and there that looked to me as if they were using it as a simple timer. HOwever, if there is a wxwidget timer I'll gladly hit that up. Thanks for the info -- http://mail.python.org/mailman/listinfo/python-list
Re: Why does python break IEEE 754 for 1.0/0.0 and 0.0/0.0?
On 2005-07-15, Michael Hudson [EMAIL PROTECTED] wrote: Grant Edwards [EMAIL PROTECTED] writes: I've read over and over that Python leaves floating point issues up to the underlying platform. Please read the conversation Tim and I are having in the Re: math.nroot [was Re: A brief question.] elsewhere in this same newsgroup. Thanks, I just found it. -- Grant Edwards grante Yow! I Know A Joke!! at visi.com -- http://mail.python.org/mailman/listinfo/python-list
open a mail and...
Hello Is it possible to open a mail and download its files attached in a hard-disk using a python script? Regards -- http://mail.python.org/mailman/listinfo/python-list
Re: open a mail and...
Is it possible to open a mail and download its files attached in a hard-disk using a python script? Use the poplib to do that. The documentation for this module can be found at http://docs.python.org/lib/module-poplib.html. -- Fabien -- http://mail.python.org/mailman/listinfo/python-list
Re: open a mail and...
On 7/15/05, Alberto Vera [EMAIL PROTECTED] wrote: Hello Is it possible to open a mail and download its files attached in a hard-disk using a python script? Regards -- http://mail.python.org/mailman/listinfo/python-list yes, use the email module. msg = email.message_from_file(an_opened_file) or msg = email.message_from_string(a_mail_string) then use: For part in msg.walk(): do_something(part) The email docs will help you with converting and extracting the specific attachements you are expecting HTH :) -- http://mail.python.org/mailman/listinfo/python-list
Re: all possible combinations
Wow. That's neat. I'm going to use it. Thanks!
On Thu, 2005-07-14 at 19:52 -0400, Peter Hansen wrote:
Bengt Richter wrote:
On Thu, 14 Jul 2005 17:10:37 -0400, William Park [EMAIL PROTECTED] wrote:
It's a one liner in Python too ;-)
print ' '.join([x+y+z+q for s in ['abc'] for x in s for y in s for z
in s for q in s])
Or for the cost of an import and a lambda, you can keep it looking real
obscure and generalize it to any size of sequence ('abcdef' or whatever)
and a result length of up to 52 elements:
from string import letters as L
cartesian = lambda seq, num: eval(list(%s for __ in [seq]
%s) % ('+'.join(L[:num]), 'for %s in __ ' * num % tuple(L[:num])))
# (there are spaces at any line breaks above)
cartesian('abcde', 6)
['aa', 'ab', 'ac', 'ad', 'ae', 'ba',
...
'ec', 'ed', 'ee']
len(_)
15625
grin
-Peter
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IDLE in Jython
Me and a couple of friends have been thinking of doing something involving Python for our final year undergrad project. We're considering the first idea mentioned on this page: http://wiki.python.org/moin/JythonProjects. Unfortunately, their statement is a little terse, so I was hoping someone could give us a better idea of what they wanted. As far as I can see, they want us to build an integrated development environment for Jython along the lines of Python's traditional IDLE. Have I gotten confused, or this really the gist of the idea? If I've got it right, I'd appreciate some help on the following issues: 1. The broad outlines of what we'll have to do - how much Java and how much Python? 2. Any Jython specific issues I need to be aware of? How big a part will Jython play in development? 3. Some idea of the scope of this project and the time it might take a team of three to get it up and running. We're looking for something fairly challenging, but not so difficult that we won't be able to finish it off in time. We have about 7-8 months to pull it off, but we'll have a bunch of pretty hectic exams, assignments, entrance tests, grad school apps and stuff like that for a pretty significant proportion of that time. The 'powers that be' are officially giving us one day a week for it, though I'm pretty certain we can increase that, and we'll have about a month of free time at the end of this semester, and less hectic schedules in the next. I'm pretty certain it's possible, but better heads than mine have been wrong...If anyone has any ideas for other interesting projects involving Python, we'd like to hear them too. At present I'm the only Python coder in the group, but all three of us are pretty good with Java, and we have a fair amount of experience doing GUIs in Swing. Hope you guys can help us out. Nadeem. -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I import a py script by its absolute path name?
Thank you for your help.
It's really useful for me.
On 7/14/05, Chris Lambacher [EMAIL PROTECTED] wrote:
You probably actually want:
import sys
sys.path.instert(0, r'c:\xxx\yyy')
m = __import__('zzz', globals(), locals(), [])
del sys.path[0]
Because if another module named zzz exists in your path. Appending will pick
those versions up first. Then you delete the path you just added so that you
don't have any problems importing other modules that may have the same names a
python files in the path you just added.
-Chris
On Thu, Jul 14, 2005 at 02:52:31PM +0300, Edvard Majakari wrote:
could ildg [EMAIL PROTECTED] writes:
I want to import c:\xxx\yyy\zzz.py into my programme,
What should I do?
Thank you~
import sys
sys.path.append('c:\xxx\yyy')
import zzz
(Untested, similar idiom would work in *nix systems, never programmed in
Windows)
However, I guess it is not very usual you should need to import stuff from
arbitrary locations. Consider publishing those modules in normal Python
include path (just see what ''print sys.path'' produces)
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# Edvard Majakari Software Engineer
# PGP PUBLIC KEY availableSoli Deo Gloria!
$_ = '456476617264204d616a616b6172692c20612043687269737469616e20'; print
join('',map{chr hex}(split/(\w{2})/)),uc
substr(crypt(60281449,'es'),2,4),\n;
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Re: System calls not using correct permissions?
Oops, yeah I should have mentioned some of that. It's a Linux environment, and it's running Python 2.2. To my knowledge, the batch files my program calls run a few processes on some data and generate a few temporary files. I believe those files are not correctly being generated. There is an error message in one of the scripts that says could not find xxx.xxx, which is a temp file it creates. The batch files are all executed with tcsh. -- http://mail.python.org/mailman/listinfo/python-list
Re: eBay.py - Has anyone looked at this???
Thanks. That helps. -- http://mail.python.org/mailman/listinfo/python-list
Re: httplib/HTTPS Post Problem
Am Montag, den 11.07.2005, 06:29 -0700 schrieb [EMAIL PROTECTED]: Hi, Sorry to post what might seem like a trivial problem here, but its driving me mad! I have a simple https client that uses httplib to post data to a web server. When I post over http https using curl the data is recieved by the web server with no problems. Just a curious guess: Are you behind a proxy? If so, it's a known and never fixed bug from Python 1.5 times ;) You might also try to use PyCurl. Andreas When I post using my python client the headers get there, but the body of the message does not. My code is pretty standard and has the format: httplib.HTTPSConnection.debuglevel = 1 connection = httplib.HTTPSConnection(host_name, key_file = key, cert_file = cert) connection.putrequest(POST, path) connection.putheader(Content-Length, str(len(body))) ...(some more headers)... connection.endheaders() connection.send(body) response = connection.getresponse() connection.close() (some code has been removed for clarity).. I can see in the debug messages the body getting sent, but nothing arrives at the server... I think I would understand whats going on better if I knew how Python uses the underlying socket - does it a) open the socket, send the header body together or b) send the header, wait, then send the body? I think the answer to this question solve my problem - can anyone help? Thanks. p.s. I'm using Python 2.3.3 [GCC 3.3.3 (SuseLinx)] signature.asc Description: Dies ist ein digital signierter Nachrichtenteil -- http://mail.python.org/mailman/listinfo/python-list
How to send broadcast message over network and collect all the IP address?
Hello to all Well this is my first mail on this list. I am facing a problem associated with collecting IP address on my network. What i thought is to send broadcast packet over the network and then recieving back the reply from the computers and bridges connected to my network and then adding their IP Address in a list. How this can be achieved? Say my computer on which application will run's IP is 192.168.100.254 and subnetmask is 255.255.255.0 How to do this in core Python? Sandeep _ 7000 classifieds http://www.sulekha.com/classifieds/cllist.aspx?nma=INref=msn -Chennai, Mumbai, Hyderabad Bangalore. -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading variables from a forked child (Python C/API)
Quoth MrEntropy [EMAIL PROTECTED]:
| I'm having a little trouble getting an idea running. I am writing a C
| program which is really a frontend to a Python program. Now, my C
| program starts up, does some initialisation like initialisation of it's
| variables and Py_Initialize() and then it fork()s. After forking the
| child launches the python program with Py_Main() and with the parent I
| want to be able to read the variables of the Python program. I have
| tried many ways but cannot find a solution to do this.
That's because there is no solution. After a fork, the only effect
observable in the parent process is the return value of fork, which
will have a non-zero value. Subsequent execution in the child process
occurs completely independently from the parent, and leaves no trace
whatever. So you can't read variables from memory, that were set by
the child.
Past that, I deleted the rest of your post because it sort of avoids
the question of what you're really trying to accomplish and what errors
you actually got, but note that just for the sake of avoiding segmentation
faults etc., it's a good idea when writing in C to check return values:
obj = PyMapping_GetItemString(dict, foo);
if (obj) {
...
} else {
...
}
Anyway, if you really need a subprocess, you're going to have to
communicate with it via some sort of I/O, like UNIX pipes or temporary
files or something. You probably don't need to call Python from C,
may as well just invoke python (cf. os.spawnv)
Donn Cave, [EMAIL PROTECTED]
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Re: How to send broadcast message over network and collect all the IP address?
Sandeep Arya wrote: Hello to all Well this is my first mail on this list. I am facing a problem associated with collecting IP address on my network. What i thought is to send broadcast packet over the network and then recieving back the reply from the computers and bridges connected to my network and then adding their IP Address in a list. How this can be achieved? Say my computer on which application will run's IP is 192.168.100.254 and subnetmask is 255.255.255.0 How to do this in core Python? Sandeep _ 7000 classifieds http://www.sulekha.com/classifieds/cllist.aspx?nma=INref=msn -Chennai, Mumbai, Hyderabad Bangalore. I'm leaving from office now so i can not give a more complete answer ... i would use an ARP Request to all network address on your network and check who answer. Check out libdnet (http://libdnet.sf.net) for a python module implementing networking funcions. bye Francesco -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Brian This contest is for people who like thinking about algorithms. Surely you must have missed the smiley... S -- http://mail.python.org/mailman/listinfo/python-list
Exception in callback = GPF?
Hiho,
When there's an unhandled exception in my
extension-module's-callback-into-Python-function-object, I get a GPF and
Python exits.
When the exception is being handled within the callback (hence in
Python), I get a very significant hiccup (1 to 5 seconds freeze).
Question: is there a specific way to deal with exceptions when they
happen inside such a callback? I searched the web with no avail. All
callbacks examples I've seen seem not to care about exceptions.
Maybe of importance: the callback is initiated within a native thread.
My C extension module is calling back into Python like this:
/* Python callback function object. */
static PyObject * my_callback = NULL;
/* C callback function passed to the implementation. */
static void external_callback(const MidiData * const data) {
if (my_callback (my_callback != Py_None)) {
if (! data) {
PyErr_SetString(PyExc_IndexError, getLastErrorMessage());
} else {
PyObject * arglist = NULL;
PyObject * result = NULL;
PyGILState_STATE gil = PyGILState_Ensure();
arglist = Py_BuildValue((i,i,s#), data-deviceIndex,
data-timestamp, data-buffer, data-size);// 0, 0, test, 4);//
result = PyEval_CallObject(my_callback, arglist);
Py_DECREF(arglist);
Py_DECREF(result);
PyGILState_Release(gil);
}
}
}
TIA,
Francois
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Re: Python Programming Contest
[EMAIL PROTECTED] wrote: Brian This contest is for people who like thinking about algorithms. Surely you must have missed the smiley... No, I saw it but it just confused me as I have no sense of humor. Cheers, Brian -- http://mail.python.org/mailman/listinfo/python-list
MailMonitor for Exchange has processed a suspicious mail[Scanned]
A mail sent by you has been identified as suspicious by MailMonitor for Exchange. Event: infection Action: Message quarantined Message ID: [EMAIL PROTECTED] Message subject:Mail System Error - Returned Mail Recipient: [EMAIL PROTECTED] [EMAIL PROTECTED] = Attachment information: Event: infection Action: Unable to disinfect Filename: letter.zip Virus: W32/MyDoom-O = Attachment information: Event: infection Action: Unable to disinfect Filename: letter.zip Virus: W32/MyDoom-O = -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Programming Contest
Brian Quinlan wrote: I've decided that it would be be fun to host a weekly Python programming contest. I like the idea, and doing the first problem was fun indeed :o) I'm always looking for feedback, so let me know what you think or if you have any ideas for future problems. It would be nice if you could put up a suite of test data with oracle solutions for download. For those sitting behind a modem line (like me), it would be a great help and speed up of the testing cycle. Thanks for your effort, in any case! -- Thomas -- http://mail.python.org/mailman/listinfo/python-list
Re: Differences between RDFlib - 4RDF and Redfoot - 4Suite?
I was wondering about the differences with the referred libs and servers. Since the documentation isn't so thorough(and a bit because of my laziness), I thought I'd make request for usage accounts etc. stating the pros and cons of the aforementioned. Any notes would be appreciated. RDFLib is a thinner layer, more of the raw API. 4RDF adds in Versa query, a graph visualization tool, and multiple back ends. However, for the longest time the idea has been to merge the strengths of the two packages (big example: rdflib's parser is up to the latest round of specs. 4RDF's is not). As part of a client project I've actually begun the process of replacing 4RDF's parser with rdflib's in 4Suite (a separate add-on until the 4Suite 1.1. branch emerges). I'd say for now if you just need quick RDF parsing, and you're not also using plain XML, and stuff like Versa RDF query language aren't important to you, you'll get along just fine with rdflib. -- Uche http://copia.ogbuji.net -- http://mail.python.org/mailman/listinfo/python-list
Re: Native ODBC access for python on linux?
All, This info was very helpful, and I'm up and running with MySQLdb on linux, and the native ODBC support on Windows. One last question I have: In vbs (specifically with .asp) I can make a connection to an ODBC provide _without_ the need to specify a system DSN in the Control Panel. It's easy to do with MySQLdb.connect( host,user,pass,etc), but is this possible with the ODBC module in Python on win32? Thanks again for all the help. This has really narrowed the gap in my knowledge significantly. -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I import a py script by its absolute path name?
Hello Edward,
Edvard Majakari [EMAIL PROTECTED] schreef in bericht
news:[EMAIL PROTECTED]
Thorsten Kampe [EMAIL PROTECTED] writes:
sys.path.append('c:\\xxx\\yyy') or sys.path.append('c:/xxx/yyy')
Well, of course. As I said, it was untested :) I just copied the path
string,
and didn't remember Windows uses path names which need special
treatment.
Hmm, what you call special treatmentg comes from pythons deep underlying C
and C++ language heietidge I presume. A backslash in a C or C++ string means
the following character is a so called escape character, like \n represents
a newline and \r a return to the beginning of a line.
If you really want a backslash you need to type it twice like so \\. Has
nothing to do with Windows...;-))
Greetings from sunny Amsterdam,
Jan
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Re: ANN: CherryPy-2.1.0-beta released
I am happy to announce the first beta release of CherryPy-2.1 Can you briefly compare CherryPy to Quixote2 (+session2)? unicode decoding/encoding, This especially interesting to me. Is CherryPy completelly unicode (and UTF-8) ready. The thing that frustrates me about quixote2 is that it has a lot of assumptions that text is a str object in the latin1 encoding. I succeded to patch quixote to be usable but that may not be enough. My quixote application works with unicode objects all the time, and the only place I want UTF-8 is when the content is sent to the client... (or when its stored in a database or file which I handle myself fine). -- damjan -- http://mail.python.org/mailman/listinfo/python-list
Issues compiling with large file support
Hello all,
I am having issues compiling Python with large file support. I tried
forcing the configure script to add it but then it bombs in the make
process. Any help will be appreciated.
Information:
Architecture:
PowerPc on AIX version 5
Compiler:
VisualAge C++ Professional / C for AIX Compiler, Version 6
Python version:
Python 2.4.1
Error Message:
cc_r -c -DNDEBUG -g -O2 -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
-I
. -I./Include -DPy_BUILD_CORE -o Objects/fileobject.o
Objects/fileobject.c
Objects/fileobject.c, line 382.2: 1506-205 (S) #error Large file
support, but neither off_t nor fpos_t is large enough.
Objects/fileobject.c, line 389.27: 1506-046 (S) Syntax error.
Objects/fileobject.c, line 423.2: 1506-205 (S) #error Large file
support, but no way to fseek.
Objects/fileobject.c, line 431.8: 1506-166 (S) Definition of function
Py_off_t requires parentheses.
Objects/fileobject.c, line 432.1: 1506-276 (S) Syntax error: possible
missing
'{'?Objects/fileobject.c, line 446.2: 1506-205 (S) #error Large file
support, but no way to ftell.
Objects/fileobject.c, line 456.18: 1506-275 (S) Unexpected text
offset encountered.
Objects/fileobject.c, line 456.9: 1506-045 (S) Undeclared identifier
Py_off_t.
Objects/fileobject.c, line 468.9: 1506-045 (S) Undeclared identifier
offset.
Objects/fileobject.c, line 476.48: 1506-099 (S) Unexpected argument.
Objects/fileobject.c, line 494.18: 1506-275 (S) Unexpected text
newsize encountered.
Objects/fileobject.c, line 494.9: 1506-045 (S) Undeclared identifier
Py_off_t.
Objects/fileobject.c, line 496.18: 1506-275 (S) Unexpected text
initialpos encountered.
Objects/fileobject.c, line 513.9: 1506-045 (S) Undeclared identifier
initialpos.
Objects/fileobject.c, line 525.17: 1506-045 (S) Undeclared identifier
newsize.
Objects/fileobject.c, line 586.52: 1506-099 (S) Unexpected argument.
Objects/fileobject.c, line 604.18: 1506-275 (S) Unexpected text pos
encountered.
Objects/fileobject.c, line 604.9: 1506-045 (S) Undeclared identifier
Py_off_t.
Objects/fileobject.c, line 610.9: 1506-045 (S) Undeclared identifier
pos.
make: 1254-004 The error code from the last command is 1.
Stop.
More info:
checking MACHDEP... aix5
checking EXTRAPLATDIR...
checking for --without-gcc...
checking for --with-cxx=compiler... no
checking for c++... no
checking for g++... no
checking for gcc... no
checking for CC... no
checking for cxx... no
checking for cc++... no
checking for cl... no
checking for gcc... cc_r
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... no
checking whether cc_r accepts -g... yes
checking for cc_r option to accept ANSI C... none needed
checking how to run the C preprocessor... cc_r -E
checking for egrep... grep -E
checking for AIX... yes
checking for --with-suffix...
checking for case-insensitive build directory... no
checking LIBRARY... libpython$(VERSION).a
checking LINKCC... $(srcdir)/Modules/makexp_aix Modules/python.exp .
$(LIBRARY);
$(PURIFY) $(CC)
checking for --enable-shared... no
checking for --enable-profiling...
checking LDLIBRARY... libpython$(VERSION).a
checking for ranlib... ranlib
checking for ar... ar
checking for a BSD-compatible install... ./install-sh -c
checking for --with-pydebug... no
checking whether cc_r accepts -OPT:Olimit=0... no
checking whether cc_r accepts -Olimit 1500... no
checking whether pthreads are available without options... yes
checking for ANSI C header files... yes
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RE: ANN: CherryPy-2.1.0-beta released
Damjan wrote: I am happy to announce the first beta release of CherryPy-2.1 ... unicode decoding/encoding, This especially interesting to me. Is CherryPy completelly unicode (and UTF-8) ready? The thing that frustrates me about quixote2 is that it has a lot of assumptions that text is a str object in the latin1 encoding. I succeded to patch quixote to be usable but that may not be enough. My quixote application works with unicode objects all the time, and the only place I want UTF-8 is when the content is sent to the client... (or when its stored in a database or file which I handle myself fine). Encoding is a snap in CherryPy 2.1. Write your application using unicode objects, then have all output converted to UTF-8 by simply writing in your config file: encodingFilter.on = True To use a different encoding, write: encodingFilter.encoding = ascii Encoding is restricted to a limited set of MIME types; 'text/html' is the default list. To change that, use the config entry: encodingFilter.mimeTypeList = ['text/html', 'text/plain'] All of these configuration entries are specifiable per-path, so different portions of your site can use different encoding schemes. Robert Brewer System Architect Amor Ministries [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: threads and sleep?
Christopher Subich [EMAIL PROTECTED] (CS) wrote: CS Hrm... this would suggest the possibility of designing a metaclass, CS perhaps, that would ensure synchronous access to an object. Perhaps wrap CS the class in another, that gets and releases a mutex on any external CS get/set access (except, possibly, for a specified list of asynchronous CS data members and methods). Sometimes that's not enough, because you may have to synchronise access to a couple of objects, or to multiple operations on some object(s). The system can't know the required granularity of locking, only the application programmer knows that. -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading variables from a forked child (Python C/API)
#ifdef def
Donn Cave wrote:
Quoth MrEntropy [EMAIL PROTECTED]:
| I'm having a little trouble getting an idea running. I am writing a C
| program which is really a frontend to a Python program. Now, my C
| program starts up, does some initialisation like initialisation of it's
| variables and Py_Initialize() and then it fork()s. After forking the
| child launches the python program with Py_Main() and with the parent I
| want to be able to read the variables of the Python program. I have
| tried many ways but cannot find a solution to do this.
That's because there is no solution. After a fork, the only effect
observable in the parent process is the return value of fork, which
will have a non-zero value. Subsequent execution in the child process
occurs completely independently from the parent, and leaves no trace
whatever. So you can't read variables from memory, that were set by
the child.
Though there is probably some solution involving a third party
such as POSIX threads, Linux has a clone(2) procedure which
fork(2) is a macro of. It is tricky to use, but allows for
having the child process have the same pid, memory, memory
mappings, file tables, etc. BSD mmap(2) is more portable and can
be used for interprocess sharing. The solution which Don Cave
provided is probably the one that Mr. Entropy needs to start
with. More specifically, ...
#else
int main (int argc, char **argv)
{
int fd0, fd1, fd2;
{
int fd_in [2], fd_out [2], fd_err [2];
pipe (fd_in); fd0 = fd_in [1];
pipe (fd_out); fd1 = fd_out [0];
pipe (fd_err); fd2 = fd_err [0];
if (!fork ()) {
dup2 (fd_in [0], 0); close (fd0);
dup2 (fd_out [1], 1); close (fd1);
dup2 (fd_err [1], 2); close (fd2);
execl (python, python, 0);
perror (execution failed);
exit (1);
}
}
write (fd0, print None\n, 11);
write (1, b, read (fd1, b, sizeof (b) /* 5 or more */));
#define write0(q...) write (fd0, print #q \n, \
sizeof (#q) + 5 + 1 - 1)
write0 (True); write (1, b, read (fd1, b, sizeof (b)));
write0 (5, str (5.0), ...);
write (1, b, read (fd1, b, sizeof (b)));
return write0 (True, False, None,
True and False,
True and None,
False and None,
True and False and None) 0;
}
#endif
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problems with python 2.4 help
I've noticed that the listings in help don't take you to correct topic. anyone else have this problem? Is there a fix? -- http://mail.python.org/mailman/listinfo/python-list
Re: Native ODBC access for python on linux?
[EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] All, This info was very helpful, and I'm up and running with MySQLdb on linux, and the native ODBC support on Windows. One last question I have: In vbs (specifically with .asp) I can make a connection to an ODBC provide _without_ the need to specify a system DSN in the Control Panel. It's easy to do with MySQLdb.connect( host,user,pass,etc), but is this possible with the ODBC module in Python on win32? Ahhh - But that's the point! If you are up and running with MySQLdb on linux then you should be up and running with with the same code on Windows. The exact same Python script you run on Linux will work for you on windows! I *think* you might be able to attach the ODBC driver but it would be a complication and an unnecessary one at that. Just point MySQLdb.connect() at the servers IP address. Go to SourceForge and download the MySQLdb installation for win32 [MySQL-python.exe-1.2.0.win32-py2.4.exe]. Sometimes you can't believe it because it's too easy :-) Thomas Bartkus -- http://mail.python.org/mailman/listinfo/python-list
Re: Any Lua Coders About?
In article [EMAIL PROTECTED], Joseph Garvin [EMAIL PROTECTED] wrote: Wendell III wrote: Hey, I'm looking for a few good Lua guys with some IM network experience. Anyone around fit that criteria? . . . I'd say it's a no brainer to try lua's mailing list ;) Incidentally, San Jose will host The Workshop, the big public event in the Lua world, at the end of the month. -- http://mail.python.org/mailman/listinfo/python-list
ssh popen stalling on password redirect output?
I have a script that I cycle through nodes connect to them and run
uptime to get some information. I run the script as root so it doesn't
require a password on the rest of the nodes. It does however barf on
the nodes that are having trouble and require a different password. Is
there an easy way to skip these nodes? Maybe redirect the password
prompt to stdout or stderr or even skip them?
Thanks in advance here is the current script.
info=os.popen('ssh node208 uptime')
sys.stderr=info
sys.stderr.write(info)
I'm very new to python if you could give me a link to an article that
would also be helpful. The documentation on python is very hard to
find as compared with php.net's php documentation.
--
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Re: IDLE in Jython
How about the following: - making Jython mostly work up to Python 2.4? - making a PVM (Python Virtual Machine) for the Palm? -- Regards, Casey -- http://mail.python.org/mailman/listinfo/python-list
Re: problems with python 2.4 help
[EMAIL PROTECTED] said unto the world upon 15/07/2005 14:50: I've noticed that the listings in help don't take you to correct topic. anyone else have this problem? Is there a fix? I'm not sure from your question what exact problem you are experiencing. Do you mean: IDLE 1.1.1 help() Welcome to Python 2.4! This is the online help utility. snip help topics Here is a list of available topics. Enter any topic name to get more help. ASSERTION DELETIONLOOPING SEQUENCES snip DEBUGGING LITERALSSEQUENCEMETHODS2 help LOOPING Sorry, topic and keyword documentation is not available because the Python HTML documentation files could not be found. If you have installed them, please set the environment variable PYTHONDOCS to indicate their location. help If so, I posted a similar question a year or so ago to the tutor list. I believe that when I resolved it I posted details about the resolution. I've since got a new computer, and just redid it now to check. Just download the html version of the docs and then, as per the instructions above, set an environment variable to point to them. (On WinXP: Control Panel-System-Advanced-Env. Var. When I had WinME, a line in autoexec.bat) Best, Brian vdB -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Newbie
On Thu, 14 Jul 2005 12:24:29 +0200, linuxfreak [EMAIL PROTECTED] wrote: So heres me asking if anyone has any pointers to some good basic python tutorial. Something that teaches one to get going. The official tutorial is quite informal yet effective: python.org - documentation - tutorial -- http://mail.python.org/mailman/listinfo/python-list
Re: Native ODBC access for python on linux?
I know... I'm expecting pain, and when that pain doesn't arrive I assume that I did something wrong. Actually, I was using the odbc/dbi stuff that ships with the win32 distribution for my windows work, and using MySQLdb for my linux work. Most of the code is the same. But I suppose the big benefit of using MySQLdb on both (which certainly works) is that there is no abiguity as to what the user is running for an OS. You don't have a special case If you're on Windows, do this; if you're on linux, do that... Rather, by having everyone indiscriminately require MySQLdb, then that forces a unity. That's probably the way to go, huh? -- http://mail.python.org/mailman/listinfo/python-list
Re: System calls not using correct permissions?
On 15 Jul 2005 07:10:10 -0700, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Oops, yeah I should have mentioned some of that. It's a Linux environment, and it's running Python 2.2. To my knowledge, the batch files my program calls run a few processes on some data and generate a few temporary files. I believe those files are not correctly being generated. There is an error message in one of the scripts that says could not find xxx.xxx, which is a temp file it creates. The batch files are all executed with tcsh. Again, just a guess, but one of (the many) reasons not to use tcsh is that it has some very strange (to me, anyway) rules about which startup files (e.g., .login) to run when. Perhaps one of your such files is being executed in one case and not the other, and is doing something relevant to an environment variable or umask. Regards, Dan -- Dan Sommers http://www.tombstonezero.net/dan/ -- http://mail.python.org/mailman/listinfo/python-list
Re: ssh popen stalling on password redirect output?
[EMAIL PROTECTED] enlightened us with: I have a script that I cycle through nodes connect to them and run uptime to get some information. I run the script as root so it doesn't require a password on the rest of the nodes. It does however barf on the nodes that are having trouble and require a different password. Is there an easy way to skip these nodes? Maybe redirect the password prompt to stdout or stderr or even skip them? Why not set up proper public/private key authentication, and don't bother with passwords at all? Sybren -- The problem with the world is stupidity. Not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself? Frank Zappa -- http://mail.python.org/mailman/listinfo/python-list
What module to use to get a file from a website?
I'm sure this is builtin, I just don't know what module. Thank you for any help! Billt -- http://mail.python.org/mailman/listinfo/python-list
Re: What module to use to get a file from a website?
urllib2.urlopen() -- http://mail.python.org/mailman/listinfo/python-list
Re: ssh popen stalling on password redirect output?
In general, it is good idea to use expect kind of tool to deal with interactive programs like ssh. You may try using pexpect (http://pexpect.sourceforge.net). -- http://mail.python.org/mailman/listinfo/python-list
Re: What module to use to get a file from a website?
SolaFide enlightened us with: I'm sure this is builtin, I just don't know what module. Thank you for any help! urllib, read the excellent free book dive into python at http://www.diveintopython.org/ for examples and usage. Sybren -- The problem with the world is stupidity. Not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself? Frank Zappa -- http://mail.python.org/mailman/listinfo/python-list
Re: Native ODBC access for python on linux?
That's exactly the way to go. In my case, I'm using cx_Oracle to connect from Python to Oracle and the same exact code runs on Windows, Linux, Solaris and soon on AIX. Grig -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie question: Explain this behavior - a followup
First, thanks to those who offered answers. They didn't really answer my question, only because I had not worked through the example sufficiently well. Doing this, I believe I understand what is happening, and, if my understanding is correct, have discovered that for other beginning and ending values for the two range statements, the example doesn't work. Given that the beginning and ending values for the inner range statement are the same, the inner range statement will never be executed for its first iternation; the else will be. This is not correct. Simply make the beginning value a non-prime number, and the program still prints out that that number is prime. Changing both beginning and ending values on the two statements, the ouput is differentially buggy. -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I import a py script by its absolute path name?
On Thursday 14 July 2005 07:43 am, Thorsten Kampe wrote:
* Edvard Majakari (2005-07-14 12:52 +0100)
could ildg [EMAIL PROTECTED] writes:
I want to import c:\xxx\yyy\zzz.py into my programme,
What should I do?
Thank you~
import sys
sys.path.append('c:\xxx\yyy')
sys.path.append('c:\\xxx\\yyy') or sys.path.append('c:/xxx/yyy')
While this will work, I think the OP may want something simpler:
my_mod = __import__('c:\\xxx\\yyy\\mymodule.py')
especially if this is following up on the relative path workaround (in
which case the result will be buried in the relative path import function).
The sys.path solution is the technique you should be using to
establish a top-level directory for your package. Once you do
that, you can use __init__.py and dotted imports to get to everything
in your package by absolute paths (that is, relative to the top-level
package, rather than to each sub-package). This is the preferred
Python approach in the current design.
However, the idea that it would be desireable to import packages by
something like ../main_package/other_subpackage/module2.py
has been suggested, and you can implement something like this using
the __import__ built-in as suggested above.
--
Terry Hancock ( hancock at anansispaceworks.com )
Anansi Spaceworks http://www.anansispaceworks.com
--
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Re: IDLE in Jython
You might get better answers if you contact the Jython developers themselves and look at their wiki - http://www.jython.org/cgi-bin/wiki/FrontPage. Even though you found the posting on a Python wiki, you really want to consult the Jython community, and I'm not sure to what extent they participate in this newsgroup. Just by reading the description of the task and your post I'd say the project is certainly doable, but not trivial. Since IDLE is a Python application the path of least resistance would be to port it to Jython. The majority of work would probably be in replacing the Tk GUI with a Java-based GUI. You say that your people have experience with Swing so you have a leg up on that part. Since Jython currently does not support all of the latest Python, you likely will have to work around some features incorporated in the latest IDLE. As you say that your team has limited experience with Python, this might be the most challenging part. I'd ask here just how much experience your team has had with maintenance programming. Modifying someone elses code is a different task than writing new code from specifications, and some programmers dislike this kind of work. I mention this because I think that designing and building an IDE from scratch IS more than you want to tackle. You might want to look at some of the other IDEs that support Python. One of the things you'll want to do is reverse engineer IDLE. If you are currently using Eclipse for Java development, there are a couple of plugins for Python which should support Jython to some extent. Bill -- http://mail.python.org/mailman/listinfo/python-list
Re: What module to use to get a file from a website?
Thanks! -- http://mail.python.org/mailman/listinfo/python-list
Re: Generating a list of None
On 14 Jul 2005 19:25:41 -0700, Nicolas Couture [EMAIL PROTECTED] wrote: Hi, Is it possible to generate a list of `None' ? opts.__dict__.values() below could be represented by [None, None, None] --- def get_options(opts): Return True or False if an option is set or not vals = opts.__dict__.values() for val in vals: if val is not None: return True return False --- This is how I'd like to see it: --- def get_options(opts): Return True or False if an option is set or not vals = opts.__dict__.values() for if vals is [None * len(vals)]: return False return True --- how about (untested) def get_options(opts): Return True or False if an option is set or not return [1 for val in vars(opts).values() if val is not None] and True or False Regards, Bengt Richter -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie question: Explain this behavior - a followup
David Smith [EMAIL PROTECTED] wrote in news:[EMAIL PROTECTED]: range statements, the example doesn't work. Given that the beginning and ending values for the inner range statement are the same, the inner range statement will never be Is your question about the semantics of for else blocks or about the suitability of the algorithm given in the example? The for else block is behaving exactly as expected... range(1,1) [] range(500,500) [] see http://groups- beta.google.com/group/comp.lang.python/browse_frm/thread/d6c084e791a00 2f4?q=for+elsehl=en for a good explanation of when the else part of the loop is executed. Basically, whenever the loop is exited normally, which is what happens when you iterate over an empty list like the one returned by range(1,1) max -- http://mail.python.org/mailman/listinfo/python-list
Filtering out non-readable characters
I have a file with binary and ascii characters in it. I massage the data and convert it to a more readable format, however it still comes up with some binary characters mixed in. I'd like to write something to just replace all non-printable characters with '' (I want to delete non-printable characters). I am having trouble figuring out an easy python way to do this... is the easiest way to just write some regular expression that does something like replace [^\p] with ''? Or is it better to go through every character and do ord(character), check the ascii values? What's the easiest way to do something like this? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Snakespell
[posted e-mailed -- prefer response by posting] In article [EMAIL PROTECTED], [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I used to use Snakespell from scriptfoundry to do spellchecking on my website (www.peterbe.com/search?q=pyton) but now that I've moved server and wiped the old machine I forgot to take with me the Snakespell code. www.scriptfoundry.com where it used to live seems to have expired. I've got a copy, but I'd rather you check with the original author first: http://starship.python.net/crew/thanos/ -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ f u cn rd ths, u cn gt a gd jb n nx prgrmmng. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create cross-backend python web app
Thanks Paul- I'll look into WebStack. -- http://mail.python.org/mailman/listinfo/python-list
Django - Rails killer comes...
http://www.djangoproject.com/ -- JZ -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I import a py script by its absolute path name?
J.Bijsterbosch wrote:
Hello Edward,
Edvard Majakari [EMAIL PROTECTED] schreef in bericht
news:[EMAIL PROTECTED]
Thorsten Kampe [EMAIL PROTECTED] writes:
sys.path.append('c:\\xxx\\yyy') or sys.path.append('c:/xxx/yyy')
Well, of course. As I said, it was untested :) I just copied the path
string,
and didn't remember Windows uses path names which need special
treatment.
Hmm, what you call special treatmentg comes from pythons deep underlying C
and C++ language heietidge I presume. A backslash in a C or C++ string means
the following character is a so called escape character, like \n represents
a newline and \r a return to the beginning of a line.
If you really want a backslash you need to type it twice like so \\. Has
nothing to do with Windows...;-))
Actually, it does have a connection to Windows.
On Unix, backslashes are rarely used for anything *except* escape
characters. Pathnames tend not to include backslashes, so in most
cases it's not necessary to escape backslashes in path names. On
Windows, however, backslash is a valid path separator, and must be
escaped.
So, on Unix, for a path separator, you type /. On Windows you
can either do the same, or type \\. (Or (ab)use raw strings.)
-- James
--
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Python vs. Access VBA
I'm at a loss on how to compare Python vs. Access VBA for a database project. I'm estimating 20 tables and several forms and reports. Some of the tables could grow to many thousands of rows w/i a year or so. The app would be resident on my client as no network connectivity is needed b/c I'll be the only user. I'd probably use Access tables for now and plan on scaling up to Oracle later if necessary (which it probably won't be). If the project is successful, it may be adopted in the division. There is no time limit but this is being done on my own time, and my guestimate for a practical limit would be 3-4 months. I'm not a developer but have done programming in the academic world as part of MSIS degree. I also want the app to have a GUI. I'm currently reviewing Wingware's Python product. Will review Komodo next. It doesn't appear that the Wingware product has a GUI builder, but Komodo's Pro version does (although more costly). Anybody have any recommendations in this regard? Any thoughts as to whether implementing in Python would be any harder or easier to do than in Access? Finally, does anybody know of any Web sites having examples of database apps in Python? Thanks for your help. Bill attachment: winmail.dat-- http://mail.python.org/mailman/listinfo/python-list
HTML expect in python
I would like to automate some simple browser navigating using python. Ideally, I would like a package like pyexpect, but that can handle a browser in much the same way as pyexpect handles a terminal (tall order!). In short, I want a macro language for a browser (I know about the commercial packages such as Easy Bee and Internet macros, but I want more programmability and less cost!) ClientForms goes in the right direction. Can Grail be scripted (easily)? What is the best way to run a browser with python? Python would have to be able to fill in forms, send them off, click links, and so on. I don't really care which browser it is. Apparently, commandline python scripts can control IE. Not sure where to find examples Any suggestions? (I found the following remark: A different flavor of client-side Python scripting is that Mark Hammond's [ref] hard work has made possible. Internet Explorer (and WSH [give ref]) support(s) ActiveScripting [ref] languages, including Python. Thus, as Gilles Lenfant enumerated in private correspondence: * Command-line Python scripts control IE (but equally well through COM [ref]); * Client-side scripts interpret Python embedded in HTML as well as they do JavaScript [ref]; * you can write 'hta' applications with full-featured Python (use of IE5 for GUI) ) -- http://mail.python.org/mailman/listinfo/python-list
Re: HTML expect in python
WGW wrote: I would like to automate some simple browser navigating using python. Ideally, I would like a package like pyexpect, but that can handle a browser in much the same way as pyexpect handles a terminal (tall order!). In short, I want a macro language for a browser (I know about the commercial packages such as Easy Bee and Internet macros, but I want more programmability and less cost!) See the mechanize module: http://wwwsearch.sourceforge.net/mechanize/ Or else you can use win32com stuff to automate internet explorer if you really need to do it that way. -- http://mail.python.org/mailman/listinfo/python-list
Re: problems with python 2.4 help
Hi ! See : http://www.gossamer-threads.com/lists/python/bugs/350314 -- http://mail.python.org/mailman/listinfo/python-list
[ python-Bugs-1238747 ] subprocess.Popen fails inside a Windows service
Bugs item #1238747, was opened at 2005-07-15 03:31 Message generated for change (Settings changed) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1238747group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: Platform-specific Status: Open Resolution: None Priority: 5 Submitted By: Adam Kerrison (adamk550) Assigned to: Peter Åstrand (astrand) Summary: subprocess.Popen fails inside a Windows service Initial Comment: If you use subprocess.Popen() from within a Windows service and you try to redirect stdout or stderr, the call will fail with a TypeError. The issue appears to be that if you attempt to redirect stdout and/or stderr, the module also needs to set up stdin. Since you haven't specified what to do with stdin, the code simple duplicates the processes stdin handle using GetStdHandle(STD_INPUT_HANDLE) However, a Windows service doesn't have stdin etc so the returned handle is None. This handle is then passed to DuplicateHandle() which fails with the TypeError. A workaround is to explictly PIPE stdin but I have found at least one Windows program (the RCMD.EXE utility) that fails if its stdin is a pipe! (RCMD says Internal Error 109 ...) The only other workaround is a to explictly open the NUL device and use that for stdin. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1238747group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1238170 ] threading.Thread uses {} as default argument
Bugs item #1238170, was opened at 2005-07-14 07:37
Message generated for change (Comment added) made by rhettinger
You can respond by visiting:
https://sourceforge.net/tracker/?func=detailatid=105470aid=1238170group_id=5470
Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Threads
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Simon Dahlbacka (sdahlbac)
Assigned to: Reinhold Birkenfeld (birkenfeld)
Summary: threading.Thread uses {} as default argument
Initial Comment:
threading.Thread.__init__ uses {} as default argument
for kwargs,
shouldn't this be the usual
def __init__(...,kwargs=None,...)
if kwargs is None:
kwargs = {}
In normal cases, this is probably not a problem but it
makes it possible to f*ck things up.
--
Comment By: Raymond Hettinger (rhettinger)
Date: 2005-07-15 03:57
Message:
Logged In: YES
user_id=80475
This seems reasonable to me.
Reinhold, would you like to do the honors (2.5 only)?
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[ python-Bugs-1230484 ] tokenize bug
Bugs item #1230484, was opened at 2005-06-30 12:35 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1230484group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: Python 2.4 Status: Open Resolution: None Priority: 5 Submitted By: Eduardo Aguiar (aguiar) Assigned to: Tim Peters (tim_one) Summary: tokenize bug Initial Comment: hi, I have found a bug in 'tokenize' module: it is merging a COMMENT and a NL token for lines that start with a comment. I have made a fell changes and it seems to be working fine. Follows a patch: *** /usr/lib/python2.4/tokenize.py 2005-01-02 03:34:20.0 -0200 --- tokenize.py 2005-06-30 14:31:19.0 -0300 *** *** 216,223 pos = pos + 1 if pos == max: break ! if line[pos] in '#\r\n': # skip comments or blank lines ! yield ((NL, COMMENT)[line[pos] == '#'], line[pos:], (lnum, pos), (lnum, len(line)), line) continue --- 216,235 pos = pos + 1 if pos == max: break ! if line[pos] == '#': # skip comments ! end = len(line) - 1 ! while end pos and line[end] in '\r\n': !end = end - 1 ! end = end + 1 ! ! yield (COMMENT, line[pos:end], !(lnum, pos), (lnum, end), line) ! yield (NL, line[end:], !(lnum, end), (lnum, len(line)), line) ! continue ! ! if line[pos] in '\r\n': # skip blank lines ! yield (NL, line[pos:], (lnum, pos), (lnum, len(line)), line) continue Best regards, Eduardo Aguiar ([EMAIL PROTECTED]) -- Comment By: Raymond Hettinger (rhettinger) Date: 2005-07-15 04:00 Message: Logged In: YES user_id=80475 Tim, this affects a line you checked-in, 1.23 on 6/18/2001. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1230484group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1234850 ] Admin privs required for Windows?
Bugs item #1234850, was opened at 2005-07-08 17:52 Message generated for change (Comment added) made by loewis You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1234850group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Distutils Group: Python 2.3 Status: Closed Resolution: Fixed Priority: 5 Submitted By: Tim Peters (tim_one) Assigned to: Nobody/Anonymous (nobody) Summary: Admin privs required for Windows? Initial Comment: Over in ZopeLand, there's a complaint that the ZODB Windows installer requires admin privileges (or something like that): http://www.zope.org/Collectors/Zope/1838 The installer was produced using Python 2.3.5, via python setup.py bdist_wininst from the root of a ZODB checkout. Anyone have a guess as to what privs it needs that it might not have? The user says they do have permission to write into their Python installation directory, so that's not it. The message they get is You do not seem to have sufficient access rights on this machine to install this software. Status under Python 2.4.1 is unknown. -- Comment By: Martin v. Löwis (loewis) Date: 2005-07-15 17:22 Message: Logged In: YES user_id=21627 bsherwood: How is your message related to this bug report? In this report, the OP reported a problem encountered with Python 2.3, whereas you seem to suggest a problem with Python 2.4; the OP indicated that the status of his problem is unknown for 2.4. If you want to report a bug in Python 2.4, please create a new bug report. -- Comment By: Bruce Sherwood (bsherwood) Date: 2005-07-15 04:25 Message: Logged In: YES user_id=34881 Debbie Carraway in IT at NCSU gives this important analysis (she discovered this in the context of using the installer for VPython, which looks for Python 2.4 in HKLM\Software\Python\PythonCore\2.4\InstallPath; this used to work with Python 2.3): The problem is with the Python 2.4.1 installer. Python will put the InstallPath registry setting (which indicates where Python is installed) under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some circumstances: (1) if you are not a member of the Administrators group (2) if you choose Install for Just Me rather than Install for All Users, (3) if you automate the Python install using msiexec.exe /i python-2.4.1.msi /q. The /q (quiet) switch causes different behavior than the defaults with a manual install (msiexec.exe /i python-2.4.1.msi). This is a mistake in the Python installer. The path to an installed application always belongs under HKLM, because the path to installed software is a machine-specific setting. If the path is in HKCU, the InstallPath setting can follow a user to a machine where Python is not installed. -- Comment By: Martin v. Löwis (loewis) Date: 2005-07-11 18:55 Message: Logged In: YES user_id=21627 The message comes from PC\bdist_wininst\install.c:OpenLogFile, when attempting to write to Software\Microsoft\CurrentVersion\Uninstall. Whether this goes to HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE apparently depends on whether Python was installed per-user or per-machine. In the 2.4.1 version, in CheckRootKey, there is a HasLocalMachinePrivs function. Mark Hammond added this in install.c 1.6 in response to #555812 and #555810, so I'm declaring this bug fixed. -- Comment By: Tim Peters (tim_one) Date: 2005-07-08 20:59 Message: Logged In: YES user_id=31435 Bug 1232947 is about installing Python itself. This one is about installing a 3rd-party package that happens to use Python (a pre-existing Python), using a Windows installer created by Python's distutils package. It's unlikely the bugs have anything in common. -- Comment By: Patrick Vrijlandt (pvrijlandt) Date: 2005-07-08 20:48 Message: Logged In: YES user_id=1307917 Did you see bug # 1232947? It provides documentation of another failing non-admin install. (2.4.1). -- Comment By: Tim Peters (tim_one) Date: 2005-07-08 19:11 Message: Logged In: YES user_id=31435 You should be able to try 2.4. The Python installer includes msvcr71.dll, and should install it into the Python directory (instead of into a system directory) is you do a install just for me (as opposed to all users) install. -- Comment By: Alex (hairypalm) Date: 2005-07-08 18:36 Message: Logged In: YES user_id=1309592 I am the original complainant. I cannot try python 2.4
[ python-Bugs-1210326 ] comma separated cookie values
Bugs item #1210326, was opened at 2005-05-28 11:13
Message generated for change (Comment added) made by jjlee
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including the initial issue submission, for this request,
not just the latest update.
Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: tvogt (tovo)
Assigned to: A.M. Kuchling (akuchling)
Summary: comma separated cookie values
Initial Comment:
According to RFC 2109
For backward compatibility, the separator in the
Cookie header
is semi-colon (;) everywhere. A server should also
accept comma (,)
as the separator between cookie-values for future
compatibility.
The Cookie standard module does not support this as it
should.
import Cookie
c=Cookie.SimpleCookie()
c.load('foo=2, bar=3')
print c['foo'].value
2,
--
Comment By: John J Lee (jjlee)
Date: 2005-07-15 19:12
Message:
Logged In: YES
user_id=261020
I notice I didn't say explicitly: I think this should be
closed, for the reasons given in my last two comments.
--
Comment By: John J Lee (jjlee)
Date: 2005-06-29 20:53
Message:
Logged In: YES
user_id=261020
Forgot to add or demo in that CGI script: even
Set-Cookie: abc=def, ghi=jkl
is just one Netscape cookie, name 'abc', value 'def, ghi=jkl'.
--
Comment By: John J Lee (jjlee)
Date: 2005-06-29 20:34
Message:
Logged In: YES
user_id=261020
Unfortunately one can't take the cookie specs at face value.
Netscape cookies behaviour (the de-facto standard, ie. IE
Firefox behaviour -- cookie_spec.html is barely worth the
web page it's written on, being flat-out wrong in several
major ways, and very under-specified) has, I'm told, always
simply been simply split on semicolons. Certainly that's
what IE and Mozilla do now:
(this is just the text of a CGI for viewing: I didn't make
it executable on reportlab.org)
http://www.reportlab.org/~jjlee/cookie_demo.py
IIRC RFC 2965 is only implemented by Opera, and is certainly
now quite dead as an internet standard. (though I think it
is useful as a guide for writing cookie-handling code, you
can't follow blindly - not even close :-( )
--
Comment By: A.M. Kuchling (akuchling)
Date: 2005-06-02 00:19
Message:
Logged In: YES
user_id=11375
The updated cookie RFC, RFC 2965, also has this language.
--
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[ python-Bugs-1239120 ] Win registry problem
Bugs item #1239120, was opened at 2005-07-15 15:46 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239120group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Installation Group: Python 2.4 Status: Open Resolution: None Priority: 5 Submitted By: Bruce Sherwood (bsherwood) Assigned to: Nobody/Anonymous (nobody) Summary: Win registry problem Initial Comment: Debbie Carraway in IT at NCSU gives this analysis of an apparent bug in the Python 2.4 installer for Windows. She discovered this in the context of using the installer for VPython, which looks for Python 2.4 in HKLM\Software\Python\PythonCore\2.4\InstallPath which used to work with Python 2.3. Here is her report: The problem is with the Python 2.4.1 installer. Python will put the InstallPath registry setting (which indicates where Python is installed) under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some circumstances: (1) if you are not a member of the Administrators group (2) if you choose Install for Just Me rather than Install for All Users, (3) if you automate the Python install using msiexec.exe /i python-2.4.1.msi /q. The /q (quiet) switch causes different behavior than the defaults with a manual install (msiexec.exe /i python-2.4.1.msi). This is a mistake in the Python installer. The path to an installed application always belongs under HKLM, because the path to installed software is a machine-specific setting. If the path is in HKCU, the InstallPath setting can follow a user to a machine where Python is not installed. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239120group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1239148 ] Win registry problem
Bugs item #1239148, was opened at 2005-07-15 17:01 Message generated for change (Settings changed) made by bsherwood You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239148group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Installation Group: Python 2.4 Status: Deleted Resolution: Duplicate Priority: 5 Submitted By: Bruce Sherwood (bsherwood) Assigned to: Nobody/Anonymous (nobody) Summary: Win registry problem Initial Comment: Debbie Carraway in IT at NCSU gives this analysis of an apparent bug in the Python 2.4 installer for Windows. She discovered this in the context of using the installer for VPython, which looks for Python 2.4 in HKLM\Software\Python\PythonCore\2.4\InstallPath which used to work with Python 2.3. Here is her report: The problem is with the Python 2.4.1 installer. Python will put the InstallPath registry setting (which indicates where Python is installed) under HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE under some circumstances: (1) if you are not a member of the Administrators group (2) if you choose Install for Just Me rather than Install for All Users, (3) if you automate the Python install using msiexec.exe /i python-2.4.1.msi /q. The /q (quiet) switch causes different behavior than the defaults with a manual install (msiexec.exe /i python-2.4.1.msi). This is a mistake in the Python installer. The path to an installed application always belongs under HKLM, because the path to installed software is a machine-specific setting. If the path is in HKCU, the InstallPath setting can follow a user to a machine where Python is not installed. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239148group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-1239186 ] Install Error: cannot compute sizeof (int), 77
Bugs item #1239186, was opened at 2005-07-15 18:00 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239186group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Installation Group: Python 2.4 Status: Open Resolution: None Priority: 5 Submitted By: Bob Gazzale (rgazzale) Assigned to: Nobody/Anonymous (nobody) Summary: Install Error: cannot compute sizeof (int), 77 Initial Comment: Computer: Mac OS: Tiger 10.4.2 When attempting to install Python 2.4, I get the following error message in the configure stage: checking size of int... configure: error: cannot compute sizeof (int), 77 config.log is attached. Many thanks, Bob -- You can respond by visiting: https://sourceforge.net/tracker/?func=detailatid=105470aid=1239186group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
