Mailman 3 July 2003 - Distutils-SIG

Sample setup.py for Numeric Python
by Greg Ward 29 Apr '18

29 Apr '18

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 29 Apr '18

29 Apr '18

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 29 Apr '18

29 Apr '18

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 29 Apr '18

29 Apr '18

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 29 Apr '18

29 Apr '18

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Python 2.3/mingw32
by Cory Dodt 31 Jul '03

31 Jul '03

What is this, and how can I get rid of it? cory@cory2k ~/cvs/Twisted $ python setup.py build -c mingw32 running build running build_py running build_ext error: Python was built with version 6 of Visual Studio, and extensions need to be built with the same version of the compiler, but it isn't installed. I had no problems building these extensions on Python 2.2 following the instructions at http://sebsauvage.net/python/mingw.html . I did the same thing substituting 2.3 for 2.2, and got the message above. Why doesn't it work any more? --compiler=mingw32 is still valid on the command line.

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Re: [Twisted-Python] Re: Twisted - Python 2.3 - Windows
by Phillip J. Eby 31 Jul '03

31 Jul '03

At 07:05 PM 7/31/03 +0200, Thomas Heller wrote: >Cory Dodt <corydodt(a)yahoo.com> writes: > > >>Subject: [Twisted-Python] Twisted - Python 2.3 - Windows > >> > >>Hi, > >> > >> anyone who knows when the first Python 2.3 build of twisted for > >> windows will be available? Which version will it be? > >> > >> I tried to build it myself but got into trouble. I first installed > >> Cygwin and then tried 'setup.py build --compiler=mingw32' as per > >> documentation, but I got an error message that Python itself is > >> build with Visual Studio 6. > >>I don't feel building python myself and I don't have VS6. > >> > > > > I'm with you man, I don't feel like building Python myself either. I > > have asked the appropriate list > > (http://mail.python.org/pipermail/distutils-sig/2003-July/003333.html ) > > about this problem. I also tried using distutils from CVS instead of > > the bundled copy with Python 2.3, and no luck. It looks like the error occurs when an MSVCCompiler instance is created; I haven't yet figured out *why* such an instance is being created. I don't have 2.3 installed on Win32, so as an experiment, I added a 'raise' statement to 2.2's MSVCCompiler. If I specified compilation with msvc, I get the error I raised. If I specify mingw32, I don't. So, evidently 2.2's distutils don't create an MSVCCompiler instance when specifying mingw32. I can't fathom why 2.3 would do so.

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distutils-sig,Sending file now
by Shoreng 31 Jul '03

31 Jul '03

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How do you get data_files and bdist_wininst to cooperate?
by Jason Sibre 25 Jul '03

25 Jul '03

Hi folks, I'm very new to this list and to distutils (this is my first stab at using it), so don't be afraid to point out the obvious... I'm trying to make a setup.py that will work on Linux and Win32, and be able to produce sdists and bdists for both platforms (I understand that I should use the targeted platform to build the bdist). The package I'm trying to distribute is actually a Quixote application, which (for those unfamiliar with Quixote) means it's a web application. I'd like to install it as a package in site-packages anyway, because that makes it easier to run multiple instances of the application (with different configuration data) on a machine without having multiple copies of it. As a web application, it has a few images, and a style.css file to distribute, and it also has a misc directory in the package (which perhaps shouldn't go there, but that's the way I'm trying to do it for now...) which includes a sample *.cgi file, *.conf file, and a python script intended to be run as a script (rather than imported as a module/package). I'm using the data_files argument to pass in those files, and I determine the directory to install to by extrapolating from the value of distutils.sysconfig.get_python_lib(), but that doesn't work right when I do a bdist_wininst (I haven't tried to do an RPM, yet, so I don't know if that works)... The files end up in "c:\python23\python23\projectTasks...." instead of "c:\python23\Lib\site-packages\projectTasks....". I've figured out a hack to do to the data_files (in code below) to make it work, but then the sdist doesn't work right, on Linux or Win32. Is there a way to achieve what I'm attempting, or do I just need to figure out at run time what the user is trying to do (build a bdist, or run an sdist), and decide then whether to apply my hack or not? Thanks, Jason Sibre Here's my setup.py file: --------------------------- #!/usr/bin/python import os, os.path from distutils.core import setup from distutils.sysconfig import get_python_lib from quixote.qx_distutils import qx_build_py def getFiles(path): fullFiles = [] files = os.listdir(path) for f in files: if f == "CVS": continue fullFiles.append(os.path.join(path,f)) return fullFiles webdir = os.path.join(get_python_lib(),'projectTasks','web') miscFiles = getFiles('web/misc') staticFiles = getFiles('web/staticFiles') #I think this is the 'right' way to do it, #and creates sdists that play nicely data_files = [ (os.path.join(webdir, 'misc'), miscFiles), (os.path.join(webdir, 'staticFiles'), staticFiles), ] #This works (as a hack) to get a win binary to install nicely #But of course makes a mess if you install from an sdist #data_files = [ # ('../PURELIB/projectTasks/web/misc', miscFiles), # ('../PURELIB/projectTasks/web/staticFiles', staticFiles), # ] setup( name = 'projectTasks', version = "0.1.0", description = "Project Task manager app for Quixote framework.", author = "Jason Sibre", author_email = "jsibre(a)chironsys.com", package_dir = {'projectTasks':'.'}, packages = ['projectTasks','projectTasks.web'], data_files = data_files, cmdclass = {'build_py': qx_build_py}, )

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Newbie building SWIG wrappers with distutils
by W.T. Bridgman 24 Jul '03

24 Jul '03

Hello, I searched the list archives and found some mention of getting SWIG v1.3 working with distutils but I couldn't find anything on the results of that effort. I've got a set of python modules that I'm beginning to convert to C/C++ extensions and some C/C++ code I want to wrap for Python using SWIG v1.3. I can get the extensions to build and work on their own (MacOS X 10.2.4, MacPython 2.3b1) but I can't get a distutils module to build them. My package directory looks something like this: Lib/ Lib/moduleA.py Lib/moduleB.py Packages/ Packages/__init__.py Packages/moduleC/ Packages/moduleC/moduleC.i Packages/moduleC/Lib/__init__.py Packages/moduleC/Include/moduleC.h Packages/moduleC/Src/moduleC.c where moduleA, moduleB are currently pure python but which may eventually converted to wrappers around C code and moduleC is being built as an extension. Based on the docs and study of other setup.py scripts, my script looks something like: extra_compile_args=["-Ddarwin"] packages=["WTBlib"] package_dir={'WTBlib':"Lib"} include_dirs=[os.path.join('/usr','local','lib')] ext_modules=[] packages.append('WTBlib.moduleC') package_dir['WTBlib.moduleC']=os.path.join('Packages','moduleC','Lib') include_dirs.append(os.path.join('Packages','moduleC','Include')) ext_modules.append(Extension('moduleC', [os.path.join('Packages','moduleC','Src','moduleC.c'), os.path.join('Packages','moduleC','moduleC.i')], extra_compile_args = extra_compile_args, include_dirs=include_dirs)) setup(name='WTBlib',version = "0.1", packages = packages, package_dir = package_dir, description = "", include_dirs = include_dirs, ext_package = "WTBlib", ext_modules = ext_modules) Currently, it fails trying to build the SWIG wrapper. So I built the wrappers manually (moduleC_wrap.c and moduleC.py and modified setup.py accordingly. I expected it to build in site-packages something like: WTBlib/ WTBlib/moduleA.py WTBlib/moduleB.py WTBlib/moduleC/ WTBlib/moduleC/_moduleC.so WTBlib/moduleC/moduleC.py WTBlib/moduleC/__init__.py which I believe is what I want. However, after having to modify things like #include paths in the wrapper file I can finally get it to build something like: WTBlib/ WTBlib/__init__.py WTBlib/moduleA.py WTBlib/moduleB.py WTBlib/moduleC.so WTBlib/moduleC/ WTBlib/moduleC/moduleC.py WTBlib/moduleC/__init__.py which just doesn't work at all. Pretends to import but no guts in the routines. Part of my problem is clearly that I don't understand how each of the components entered into the setup.py gets transformed into a path for such things as file copy and compilation parameters. Is there a better source of info on that? What is the status of letting distutils build the wrapper files? Also, just what is the __init__.py file for and is there ever a reason to put routines in it? Thanks, Tom

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Distutils-SIG July 2003