Distutils-SIG September 1999

distutils-sig@python.org

13 participants
18 discussions

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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distutils 0.1 problem and fix
by Amos Latteier 30 Sep '99

30 Sep '99

Three cheers for distutils 0.1! Unfortunately it fails to install itself on my NT box. D:\TEMP\Distutils-0.1>python setup.py -v install running install running build running build_py not copying distutils\ccompiler.py (output up-to-date) not copying distutils\core.py (output up-to-date) not copying distutils\errors.py (output up-to-date) not copying distutils\fancy_getopt.py (output up-to-date) not copying distutils\msvccompiler.py (output up-to-date) not copying distutils\spawn.py (output up-to-date) not copying distutils\sysconfig.py (output up-to-date) not copying distutils\text_file.py (output up-to-date) not copying distutils\unixccompiler.py (output up-to-date) not copying distutils\util.py (output up-to-date) not copying distutils\version.py (output up-to-date) not copying distutils\__init__.py (output up-to-date) not copying distutils\command\build.py (output up-to-date) not copying distutils\command\build_ext.py (output up-to-date) not copying distutils\command\build_py.py (output up-to-date) not copying distutils\command\dist.py (output up-to-date) not copying distutils\command\install.py (output up-to-date) not copying distutils\command\install_ext.py (output up-to-date) not copying distutils\command\install_py.py (output up-to-date) not copying distutils\command\__init__.py (output up-to-date) running install_py creating D:\Python1.5.2 Traceback (innermost last): File "setup.py", line 22, in ? packages = ['distutils', 'distutils.command'], File "distutils\core.py", line 87, in setup dist.run_commands () File "distutils\core.py", line 377, in run_commands self.run_command (cmd) File "distutils\core.py", line 426, in run_command cmd_obj.run () File "distutils\command\install.py", line 287, in run self.run_peer ('install_py') File "distutils\core.py", line 710, in run_peer self.distribution.run_command (command) File "distutils\core.py", line 426, in run_command cmd_obj.run () File "distutils\command\install_py.py", line 51, in run outfiles = self.copy_tree (self.build_dir, self.install_dir) File "distutils\core.py", line 773, in copy_tree self.distribution.dry_run) File "distutils\util.py", line 318, in copy_tree mkpath (dst, verbose=verbose) File "distutils\util.py", line 74, in mkpath raise DistutilsFileError, "%s: %s" % (head, errstr) distutils.errors.DistutilsFileError: D:\Python1.5.2: File exists To fix this I changed line 317 of distutils/util.py to: if not dry_run and not os.path.exists(os.path.normpath(dst)): This checks to see if the destination directory already exists before creating it. Note: I had to use normpath since for me dst was 'D:\\Python1.5.2\\' which os.path.exists claims doesn't exist, while 'D:\\Python1.5.2' does exist. -Amos

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ANNOUNCE: Distutils 0.1
by Greg Ward 29 Sep '99

29 Sep '99

Python Module Distribution Utilities release 0.1 September 29, 1999 The Python Module Distribution Utilities, or Distutils for short, are a collection of modules that aid in the development, distribution, and installation of Python modules. (It is intended that ultimately the Distutils will grow up into a system for distributing and installing whole Python applications, but for now their scope is limited to module distributions.) The Distutils will be a standard part of Python 1.6. This release is intended to provide a wider audience an early opportunity to try out the system, improve its portability, shake out the bugs, make suggestions, and so forth. Do not expect perfection: if you're trying out this release, it should be because you want to help debug and develop, not because you need a stable, working system immediately. You can download the Distutils from the Distutils SIG home page: http://www.python.org/sigs/distutils-sig/ Any feedback, comments, bug reports, success reports, etc. should be reported to the Distutils SIG at distutils-sig(a)python.org If you're not yet a member of this mailing list, you can join at http://www.python.org/mailman/listinfo/distutils-sig Reports of minor bugs (patches are especially welcome!) can be sent directly to me (Greg Ward) at gward(a)python.net. Anything that expects a longer response than "Thanks for the bug report/fix!" should be directed to the SIG.

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Re: [Distutils] The "dist" command
by Perry A. Stoll 28 Sep '99

28 Sep '99

Fred, I'm all for a Python-only approach. As for avoiding YASP, oye, tell me about it. We have sooo many for our build environment, it's just a mess. I just wanted to make sure people didn't take away the message "there is no free find replacment for Win32". -Perry -----Original Message----- From: Fred L. Drake, Jr. <fdrake(a)acm.org> To: Perry Stoll <pas(a)scansoft.com> Cc: distutils-sig(a)python.org <distutils-sig(a)python.org> Date: Tuesday, September 28, 1999 9:14 AM Subject: Re: [Distutils] The "dist" command > >Perry Stoll writes: > > Ignoring the fact that Greg was being facetious (I hope...). There is a free > > replacement for Win32 called, oddly enough, find. From the cygnus win32 GNU > > utilties: > > http://sourceware.cygnus.com/cygwin/ > >Perry, > Actually, I was already aware of that, and the MKS Toolkit as well >(which includes a non-free version of find). However, these are both >third-party addons, even if one is free. Since the use of find in >this case is quite simple, I think implementing a "manifest" command >in distutils would be worth the 15-20 lines of code it would take. > I'd hate for us to recommend users to go install YASP ("yet another >software package") just to be able to get a list of files and >directories! >

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Re: [Distutils] The "dist" command
by Gordon McMillan 28 Sep '99

28 Sep '99

Greg wrote: <braindump> Possible modes of operation: - require an explicit manifest that lists every single file (presumably along with a way to auto-generate the manifest) - require an explicit manifest, but allow it to have globs or filename patterns of some kind (and also have auto-generation) - allow an explict manifest, but automatically augment it at runtime with the source files mentioned in 'packages', 'py_modules', and 'ext_modules' (and any other such things that might come along) Since you can't possibly anticipate the preferences of every sicko out there, I'd suggest a 2 phase approach. Use specifiers / filters to create an explicit manifest. Let the programmer edit the manifest, then go on to phase 2. - Gordon

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Re: [Distutils] The "dist" command
by Perry Stoll 28 Sep '99

28 Sep '99

-----Original Message----- From: Fred L. Drake, Jr. <fdrake(a)acm.org> >Greg Ward writes: > > explictly, you're welcome to do so! If you want automated help in doing > > so, may I suggest the 'find(1)' command? >smirk< > > I don't think there's any equivalent for Windows without buying 3rd >party addons (not an acceptable alternative Fred, Ignoring the fact that Greg was being facetious (I hope...). There is a free replacement for Win32 called, oddly enough, find. From the cygnus win32 GNU utilties: http://sourceware.cygnus.com/cygwin/ Makes a unix-weenie feel right at home on win32. -Perry

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Distutils-SIG September 1999