Mailman 3 September 2004 - Distutils-SIG

Re: [Distutils] distutils install probs on suse 9.0
by Mats Wichmann April 29, 2018

April 29, 2018

At 05:43 AM 5/18/2004, David Handy wrote: >On Tue, 18 May 2004, Floris van der Tak wrote: > >> my attempt to install the distutils on suse 9.0 (which provides python >> 2.3) fails: > >Why are you installing distutils on a system that already has Python 2.3 >installed? Python 2.3 normally comes with distutils as part of the Python >standard library. > >Did suse distribute a version of Python that had distutils removed? It should come from python-devel

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Sample setup.py for Numeric Python
by Greg Ward April 29, 2018

April 29, 2018

Hi again -- [cc'd to Paul Dubois: you said you weren't following the distutils sig anymore, but this directly concerns NumPy and I'd like to get your input!] here's that sample setup.py for NumPy. See below for discussion (and questions!). ------------------------------------------------------------------------ #!/usr/bin/env python # Setup script example for building the Numeric extension to Python. # This does sucessfully compile all the .dlls. Nothing happens # with the .py files currently. # Move this file to the Numerical directory of the LLNL numpy # distribution and run as: # python numpysetup.py --verbose build_ext # # created 1999/08 Perry Stoll __rcsid__ = "$Id: numpysetup.py,v 1.1 1999/09/12 20:42:48 gward Exp $" from distutils.core import setup setup (name = "numerical", version = "0.01", description = "Numerical Extension to Python", url = "http://www.python.org/sigs/matrix-sig/", ext_modules = [ ( '_numpy', { 'sources' : [ 'Src/_numpymodule.c', 'Src/arrayobject.c', 'Src/ufuncobject.c' ], 'include_dirs' : ['./Include'], 'def_file' : 'Src/numpy.def' } ), ( 'multiarray', { 'sources' : ['Src/multiarraymodule.c'], 'include_dirs' : ['./Include'], 'def_file': 'Src/multiarray.def' } ), ( 'umath', { 'sources': ['Src/umathmodule.c'], 'include_dirs' : ['./Include'], 'def_file' : 'Src/umath.def' } ), ( 'fftpack', { 'sources': ['Src/fftpackmodule.c', 'Src/fftpack.c'], 'include_dirs' : ['./Include'], 'def_file' : 'Src/fftpack.def' } ), ( 'lapack_lite', { 'sources' : [ 'Src/lapack_litemodule.c', 'Src/dlapack_lite.c', 'Src/zlapack_lite.c', 'Src/blas_lite.c', 'Src/f2c_lite.c' ], 'include_dirs' : ['./Include'], 'def_file' : 'Src/lapack_lite.def' } ), ( 'ranlib', { 'sources': ['Src/ranlibmodule.c', 'Src/ranlib.c', 'Src/com.c', 'Src/linpack.c', ], 'include_dirs' : ['./Include'], 'def_file' : 'Src/ranlib.def' } ), ] ) ------------------------------------------------------------------------ First, what d'you think? Too clunky and verbose? Too much information for each extension? I kind of think so, but I'm not sure how to reduce it elegantly. Right now, the internal data structures needed to compile a module are pretty obviously exposed: is this a good thing? Or should there be some more compact form for setup.py that will be expanded later into the full glory we see above? I've already made one small step towards reducing the amount of cruft by factoring 'include_dirs' out and supplying it directly as a parameter to 'setup()'. (But that needs code not in the CVS archive yet, so I've left the sample setup.py the same for now.) The next thing I'd like to do is get that damn "def_file" out of there. To support it in MSVCCompiler, there's already an ugly hack that unnecessarily affects both the UnixCCompiler and CCompiler classes, and I want to get rid of that. (I refer to passing the 'build_info' dictionary into the compiler classes, if you're familiar with the code -- that dictionary is part of the Distutils extension-building system, and should not propagate into the more general compiler classes.) But I don't want to give these weird "def file" things standing on the order of source files, object files, libraries, etc., because they seem to me to be a bizarre artifact of one particular compiler, rather than something present in a wide range of C/C++ compilers. Based on the NumPy model, it seems like there's a not-too-kludgy way to handle this problem. Namely: if building extension "foo": if file "foo.def" found in same directory as "foo.c" add "/def:foo.def" to MSVC command line this will of course require some platform-specific code in the build_ext command class, but I figured that was coming eventually, so why put it off? ;-) To make this hack work with NumPy, one change would be necessary: rename Src/numpy.def to Src/_numpy.def to match Src/_numpy.c, which implements the _numpy module. Would this be too much to ask of NumPy? (Paul?) What about other module distributions that support MSVC++ and thus ship with "def" files? Could they be made to accomodate this scheme? Thanks for your feedback -- Greg -- Greg Ward - software developer gward(a)cnri.reston.va.us Corporation for National Research Initiatives 1895 Preston White Drive voice: +1-703-620-8990 Reston, Virginia, USA 20191-5434 fax: +1-703-620-0913

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Can now compile simple extensions
by Greg Ward April 29, 2018

April 29, 2018

Hi all -- at long last, I found the time to hack in the ability to compile extension modules to the Distutils. Mainly, this meant adding a 'build_ext' command which uses a CCompiler instance for all its dirty work. I also had to add a few methods to CCompiler (and, of course, UnixCCompiler) to make this work. And I added a new module, 'spawn', which takes care of running sub-programs more efficiently and robustly (no shell involved) than os.system. That's needed, obviously, so we can run the compiler! If you're in the mood for grubbing over raw source code, then get the latest from CVS or download a current snapshot. See http://www.python.org/sigs/distutils-sig/implementation.html for a link to the code snapshot. I'm still waiting for more subclasses of CCompiler to appear. At the very least, we're going to need MSVCCompiler to build extensions on Windows. Any takers? Also, someone who knows the Mac, and how to run compilers programmatically there, will have to figure out how to write a Mac-specific concrete CCompiler subclass. The spawn module also needs a bit of work to be portable. I suspect that _win32_spawn() (the intended analog to my _posix_spawn()) will be easy to implement, if it even needs to go in a separate function at all. It looks from the Python Library documentation for 1.5.2 that the os.spawnv() function is all we need, but it's a bit hard to figure out just what's needed. Windows wizards, please take a look at the 'spawn()' function and see if you can make it work on Windows. As for actually compiling extensions: well, if you can figure out the build_ext command, go ahead and give it a whirl. It's a bit cryptic right now, since there's no documentation and no example setup.py. (I have a working example at home, but it's not available online.) If you feel up to it, though, see if you can read the code and figure out what's going on. I'm just hoping *I'll* be able to figure out what's going on when I get back from the O'Reilly conference next week... ;-) Enjoy -- Greg -- Greg Ward - software developer gward(a)cnri.reston.va.us Corporation for National Research Initiatives 1895 Preston White Drive voice: +1-703-620-8990 Reston, Virginia, USA 20191-5434 fax: +1-703-620-0913

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Two fixes (at last)
by Greg Ward April 29, 2018

April 29, 2018

Hi all -- at long last, I have fixed two problems that a couple people noticed a while ago: * I folded in Amos Latteier's NT patches almost verbatim -- just changed an `os.path.sep == "/"' to `os.name == "posix"' and added some comments bitching about the inadequacy of the current library installation model (I think this is Python's fault, but for now Distutils is slavishly aping the situation in Python 1.5.x) * I fixed the problem whereby running "setup.py install" without doing anything else caused a crash (because 'build' hadn't yet been run). Now, the 'install' command automatically runs 'build' before doing anything; to make this bearable, I added a 'have_run' dictionary to the Distribution class to keep track of which commands have been run. So now not only are command classes singletons, but their 'run' method can only be invoked once -- both restrictions enforced by Distribution. The code is checked into CVS, or you can download a snapshot at http://www.python.org/sigs/distutils-sig/distutils-19990607.tar.gz Hope someone (Amos?) can try the new version under NT. Any takers for Mac OS? BTW, all parties involved in the Great "Where Do We Install Stuff?" Debate should take a good, hard look at the 'set_final_options()' method of the Install class in distutils/install.py; this is where all the policy decisions about where to install files are made. Currently it apes the Python 1.5 situation as closely as I could figure it out. Obviously, this is subject to change -- I just don't know to *what* it will change! Greg -- Greg Ward - software developer gward(a)cnri.reston.va.us Corporation for National Research Initiatives 1895 Preston White Drive voice: +1-703-620-8990 Reston, Virginia, USA 20191-5434 fax: +1-703-620-0913

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Package versioning
by Timothy Docker April 29, 2018

April 29, 2018

Hi all, I've been aware that the distutils sig has been simmerring away, but until recently it has not been directly relevant to what I do. I like the look of the proposed api, but have one question. Will this support an installed system that has multiple versions of the same package installed simultaneously? If not, then this would seem to be a significant limitation, especially when dependencies between packages are considered. Assuming it does, then how will this be achieved? I am presently managing this with a messy arrangement of symlinks. A package is installed with its version number in it's name, and a separate directory is created for an application with links from the unversioned package name to the versioned one. Then I just set the pythonpath to this directory. A sample of what the directory looks like is shown below. I'm sure there is a better solution that this, and I'm not sure that this would work under windows anyway (does windows have symlinks?). So, has this SIG considered such versioning issues yet? Cheers, Tim -------------------------------------------------------------- Tim Docker timd(a)macquarie.com.au Quantative Applications Division Macquarie Bank -------------------------------------------------------------- qad16:qad $ ls -l lib/python/ total 110 drwxr-xr-x 2 mts mts 512 Nov 11 11:23 1.1 -r--r----- 1 root mts 45172 Sep 1 1998 cdrmodule_0_7_1.so drwxr-xr-x 2 mts mts 512 Sep 1 1998 chart_1_1 drwxr-xr-x 3 mts mts 512 Sep 1 1998 Fnorb_0_7_1 dr-xr-x--- 3 mts mts 512 Nov 11 11:21 Fnorb_0_8 drwxr-xr-x 3 mts mts 1536 Mar 3 12:45 mts_1_1 dr-xr-x--- 7 mts mts 512 Nov 11 11:22 OpenGL_1_5_1 dr-xr-x--- 2 mts mts 1024 Nov 11 11:23 PIL_0_3 drwxr-xr-x 3 mts mts 512 Sep 1 1998 Pmw_0_7 dr-xr-x--- 2 mts mts 512 Nov 11 11:21 v3d_1_1 qad16:qad $ ls -l lib/python/1.1 total 30 lrwxrwxrwx 1 root other 29 Apr 10 10:43 _glumodule.so -> ../OpenGL_1_5_1/_glumodule.so lrwxrwxrwx 1 root other 30 Apr 10 10:43 _glutmodule.so -> ../OpenGL_1_5_1/_glutmodule.so lrwxrwxrwx 1 root other 22 Apr 10 10:43 _imaging.so -> ../PIL_0_3/_imaging.so lrwxrwxrwx 1 root other 36 Apr 10 10:43 _opengl_nummodule.so -> ../OpenGL_1_5_1/_opengl_nummodule.so lrwxrwxrwx 1 root other 27 Apr 10 10:43 _tkinter.so -> ../OpenGL_1_5_1/_tkinter.so lrwxrwxrwx 1 mts mts 21 Apr 10 10:43 cdrmodule.so -> ../cdrmodule_0_7_1.so lrwxrwxrwx 1 mts mts 12 Apr 10 10:43 chart -> ../chart_1_1 lrwxrwxrwx 1 root other 12 Apr 10 10:43 Fnorb -> ../Fnorb_0_8 lrwxrwxrwx 1 mts mts 12 Apr 10 10:43 mts -> ../mts_1_1 lrwxrwxrwx 1 root other 15 Apr 10 10:43 OpenGL -> ../OpenGL_1_5_1 lrwxrwxrwx 1 root other 33 Apr 10 10:43 opengltrmodule.so -> ../OpenGL_1_5_1/opengltrmodule.so lrwxrwxrwx 1 root other 33 Apr 10 10:43 openglutil_num.so -> ../OpenGL_1_5_1/openglutil_num.so lrwxrwxrwx 1 root other 10 Apr 10 10:43 PIL -> ../PIL_0_3 lrwxrwxrwx 1 mts mts 10 Apr 10 10:43 Pmw -> ../Pmw_0_7 lrwxrwxrwx 1 root other 10 Apr 10 10:43 v3d -> ../v3d_1_1

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[Distutils-sig] distutils charter and interscript
by John Skaller April 29, 2018

April 29, 2018

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Add RPM-friendly Record Option
by Jeff Pitman Oct. 14, 2004

Oct. 14, 2004

Hi: I'm new here. I submitted a patch for your kind review that spews out an RPM-consumable list including %dir and %lang attributes. The concept could be expanded further. The patch link is here: http://sourceforge.net/tracker/index.php?func=detail&aid=1035576&group_id=5… I know install.py is probably supposed to be RPM-agnostic, but I saw this as the easiest solution. The --record option is still in-tact with a minor aesthetic improvement of using a list comprehension. Critic away! take care, -- -jeff

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Axmwgde dfykujxnz
by mutex-request＠gmd.de Sept. 30, 2004

Sept. 30, 2004

------------------ Virus Warning Message (on the network) Found virus WORM_MYDOOM.M in file file.exe The file file.exe is moved to /var/quarantine/virus/virXLY._dvCN. This is a machine-generated message, please do not reply via e-mail. If you have questions, please contact the Lucent Help Desk at +1 888 300 0770. --------------------------------------------------------- The original message was received at Thu, 30 Sep 2004 14:17:39 -0400 from gmd.de [96.5.137.89] ----- The following addresses had permanent fatal errors ----- <distutils-sig(a)python.org> ----- Transcript of session follows ----- ... while talking to host python.org.: 554 5.0.0 Service unavailable; [193.4.76.180] blocked using bl.spamcop.net Session aborted, reason: lost connection ------------------ Virus Warning Message (on the network) file.exe is removed from here because it contains a virus. ---------------------------------------------------------

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Re: [Distutils] SWIG runtime libs/Python distutils combo on Mac
by Bob Ippolito Sept. 29, 2004

Sept. 29, 2004

On Sep 29, 2004, at 5:10 PM, Bill Spotz wrote: > > On Sep 29, 2004, at 2:57 PM, Bob Ippolito wrote: > >> On Sep 29, 2004, at 4:43 PM, Bill Spotz wrote: >> >>> On Sep 27, 2004, at 10:19 AM, Bob Ippolito wrote: >>> >>>> On Sep 27, 2004, at 12:03 PM, Bill Spotz wrote: >>>> >>>>> To get around the portability problem, I have decided to use >>>>> python's distutils module to handle the compilation issues. In my >>>>> setup.py script, I define >>>>> >>>>> SwigRun = Extension("PyTrilinos.libswigrun", >>>>> ["src/swigrun_wrap.c"]) >>>>> >>>>> and this works, as build/lib.blahblahblah/PyTrilinos/libswigrun.so >>>>> gets created properly. When I define real extensions in setup.py, >>>>> they are created with keyword arguments >>>>> >>>>> library_dirs = [..., "build/lib.blahblahblah/PyTrilinos", >>>>> ...], >>>>> libraries = [..., "swigrun", ...], >>>>> >>>>> which gives me the link command arguments I want: >>>>> -Lbuild/lib.blahblahblah/PyTrilinons -lswigrun. However, on my >>>>> Mac, when the link command is invoked, I get >>>>> >>>>> ld: can't locate file for: -lswigrun >>>>> >>>>> I strongly suspect that the Mac's ld command does not search for >>>>> libswigrun.so when -lswigrun is given as a command line argument >>>>> (the old system libraries have .la and .dylib extensions). But I >>>>> cannot figure out how to get setup.py to compile to a different >>>>> suffix. >>>> >>>> You can't do this on OS X. You can link to two types of files in >>>> OS X, static libraries and dylibs. Python extension modules are >>>> bundles (runtime loadable code) and can not be linked to at compile >>>> time. You should either compile swigrun_wrap into every extension, >>>> or make it a static library (which is more or less the same thing). >>> I'm pretty sure I cannot compile swigrun_wrap into every extension >>> or make it a static library, since each extension will get its own >>> copy and that will defeat the purpose of the runtime libraries. >>> Sounds like I need to create a dylib, that python distutils can't >>> help me, and that I'll have to learn libtool if I want to make it >>> portable. Does that sound about right? >> >> I don't think your assessment of swigrun_wrap is correct. > > I base my assessment on a couple of passages from the SWIG manual: > >> (15.1) By default, the runtime functions are private to each >> SWIG-generated module. That is, the runtime functions are declared >> with "static" linkage and are visible only to the wrapper functions >> defined in that module. If two completely different SWIG modules are >> loaded, this presents no problem---each module uses its own private >> runtime code. The only problem with this approach is that when more >> than one SWIG module is used in the same application, those modules >> often need to share type information. This is especially true for C++ >> programs where SWIG must collect and share information about >> inheritance relationships that cross module boundaries. I'm not really sure this applies, try it and see what happens. >> (15.3) When working with multiple SWIG modules, you should take care >> not to use static libraries. For example, if you have a static >> library libfoo.a and you link a collection of SWIG modules with that >> library, each module will get its own private copy of the library >> code inserted into it. This is very often NOT what you want and it >> can lead to unexpected or bizarre program behavior. When working with >> dynamically loadable modules, you should try to work exclusively with >> shared libaries. > > I am definitely trying to create multiple modules that need to share > type information for inheritance purposes. It sure sounds as if they're talking about the library you're wrapping, not swigrun, in this paragraph. -bob

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SWIG runtime libs/Python distutils combo on Mac
by Bill Spotz Sept. 29, 2004

Sept. 29, 2004

This problem concerns using distutils to compile a set of python modules that are generated by SWIG, so I am cross-posting to both SWIG and distutils mailing lists. I use SWIG to wrap several packages that are intended to be both independent and interoperable. So I am creating separate python extensions that link to the swig runtime libraries. Previously, I linked to installed system runtime libraries, but this is not the preferred approach, and indeed, swig 1.3.22 does not support it. Instead, I am supposed to generate my own local runtime library, and link to it. Fine; this would seem to be more portable. The SWIG documentation says to do the following (for Linux), with the caveat that compiling dynamic libraries is different on every system: ------------------ % swig -runtime -python swigrun.i % gcc -fpic swigrun_wrap.c -o swigrun_wrap.o % gcc -shared swigrun_wrap.o -o libswigrunpy.so Now, you compile all of the normal SWIG modules using the -noruntime option: % swig -noruntime -c++ -python A.i % swig -noruntime -c++ -python B.i Finally, when linking the dynamically loadable modules, you need to link again the special runtime library above. For example (Linux) : % g++ -shared A_wrap.o -L. -lswigrunpy -o _A.so % g++ -shared B_wrap.o -L. -lswigrunpy -o _B.so ------------------ To get around the portability problem, I have decided to use python's distutils module to handle the compilation issues. In my setup.py script, I define SwigRun = Extension("PyTrilinos.libswigrun", ["src/swigrun_wrap.c"]) and this works, as build/lib.blahblahblah/PyTrilinos/libswigrun.so gets created properly. When I define real extensions in setup.py, they are created with keyword arguments library_dirs = [..., "build/lib.blahblahblah/PyTrilinos", ...], libraries = [..., "swigrun", ...], which gives me the link command arguments I want: -Lbuild/lib.blahblahblah/PyTrilinons -lswigrun. However, on my Mac, when the link command is invoked, I get ld: can't locate file for: -lswigrun I strongly suspect that the Mac's ld command does not search for libswigrun.so when -lswigrun is given as a command line argument (the old system libraries have .la and .dylib extensions). But I cannot figure out how to get setup.py to compile to a different suffix. Any suggestions would be appreciated. ** Bill Spotz ** ** Sandia National Laboratories Voice: (505)845-0170 ** ** P.O. Box 5800 Fax: (505)284-5451 ** ** Albuquerque, NM 87185-0316 Email: wfspotz(a)sandia.gov **

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