Distutils-SIG July 2001

distutils-sig@python.org

33 participants
42 discussions

Re: [Distutils] mac distutils needs more work

by Jack Jansen

Recently, "Pete Shinners" <pete(a)visionart.com> said: > first, distutils on macos does not know where its own > "site-packages" directory is. it actually asks the user > where it is when installing. with all the talk recently > on getting the install paths straightened out, i hope > this gets cleaned up on the macos side. This is the second report I hear of strange things with site-packages with MacPython, but I have absolutely no idea what the problem is. MacPython site-packages handling is identical to how unix does it, and it lives in the exact same place. As I'm not experiencing this problem I'd like to get into contact with people who have this problem. > the problem is that distutils cannot compile and libaries > that require linking to other libraries. it is very close, > but there are a couple "one-line" fixes needed to get it > working. I know about this problem, but (a) I have very little time and an enormous todolist, and (b) I don't know of any reasonably simple distutils-based packages that use the library (or application) targets. I posted a fairly detailed description to the pythonmac-sig yesterday of what would be needed to get mac-distutils to build library and app targets, if someone else could jump in that would be really nice... -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

19 years, 9 months

Distributing python applications

by Tessa Lau

I'm switching from autoconf to the distutils for building and installing my Python application. This application includes one pure-python package, one impure extension package, and various modules in the root package. I've figured most of it out except for two things that I used to do using autoconf: 1) Install two python scripts in a system-wide bin directory (not site-packages) 2) Create a new .py file by doing textual substitution on a .py.in file Suppose my program is called blarg. I want users to be able to run "blarg" from their command prompt. The file blarg is a python script that imports modules from blarg's library directory, which is usually something like ${exec_prefix}/lib/blarg-X.Y, where X.Y is the blarg version number. The reason I used textual substitution is so that I only have to change the version string in one place, and the same string is propagated to everyplace that needs it, including the two main application scripts that are installed in ${prefix}/bin. How can I do this using distutils? --Tessa

19 years, 9 months

RE: Possible solution for PEP250 and bdist_wininst

by Moore, Paul

From: Thomas Heller [mailto:thomas.heller@ion-tof.com] > I have a possible solution for this problem. [Description cut] Sounds OK to me, but if I knew much about this area I'd have covered it in the PEP :-) One question: Should sys.extinstallpath be set for all platforms? Cleanrly, nothing but Windows will use it at present, but is there a meaningful value it could have on other platforms? If so, exposing it uniformly seems sensible. Paul.

19 years, 9 months

RE: [Python-Dev] PEP 250 - site-packages on Windows: (Was: [Distu tils] Package DB: strawman PEP)

by Moore, Paul

From: Thomas Heller [mailto:thomas.heller@ion-tof.com] > The sources are in CVS: > http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/python/distutils/misc/ Unfortunately, I don't have CVS access... > The bdist_wininst installer simply installs into prefix, > this is what the registry has under > HKEY_LOCAL_MACHINE\Software\Python\PythonCore\2.1\InstallPath. > > Now what should it do? What does that key *mean*? If it is the directory into which packages should get installed, then bdist_wininst should keep doing what it does now, and the Python installer should be changed to put site-packages into that key. If, on the other hand, this key has a meaning elsewhere in Python, and changing it would cause a problem, then I would say that this is a bug in the Windows Installer, which should use a key of its own. In that case, my recommendation would be to have the Python 2.2 installer create a new key, and wininst use that if it exists, otherwise fall back to the current key. That would provide the correct behaviour in the new release, but retain backward compatibility with earlier versions of Python. > There are probably some issues here. Agreed. I apologise if I didn't publicise the PEP in the right places for these to get picked up earlier - I thought I had. I believe my suggestion above will do the right thing, but I am not an expert in the intricacies of Python's use of the registry, so I'd like someone more knowledgeable to comment, if possible. Paul.

19 years, 9 months

PEP 250 - site-packages on Windows: (Was: [Distutils] Package DB: strawman PEP)

by Moore, Paul

From: Pete Shinners [mailto:pete@shinners.org] > for the love of all things good, can we please make a recommendation > in our PEP that the windows installation location be something other > than "C:\PYTHON21"? something like "C:\PYTHON21\SITE-PACKAGES" would > be a big improvement. i thought i heard that macpython recently made > this "fix", why is the windows version lagging on this? PEP 250 covers this. I have sent in the final PEP for approval, plus a patch, but the process appears to be stalled. I guess I need to nag again. The PEP process doesn't seem to cover non-core Python developers well (eg, people like me who don't have a way of integrating with the Sourceforge mechanisms...) Paul.

19 years, 9 months

RE: [Python-Dev] PEP 250 - site-packages on Windows: (Was: [Distu tils] Package DB: strawman PEP)

by Moore, Paul

From: M.-A. Lemburg [mailto:mal@lemburg.com] > They should be in the CVS tree of Python on SourceForge. I don't have CVS access, so I can't get at these, unfortunately... > About the change: I think distutils should lookup the path in Python's > site.py file - that way you assure that distutils will work on all > Python installations rather than only on those which have the site.py > patch. Otherwise, Python won't find the packages installed in > Lib/site-packages. I'm not sure what you intend, here. site.py doesn't export this directory - it is just one of the directories which gets added to sys.path in site.py. On Unix, there are more than one such directory (both version-specific and version-independent), so there isn't, in general, just one such directory. I don't know how you could encapsulate this in a way which would not clash with other platforms' policies. The intention of this change was to be the smallest possible change which would work. I believe it (or at least, the patch I sent when I submitted the final version of the PEP) does that for everything except the Windows Installer. I'll have to defer judgement on how best to address that area to others better qualified to comment, but see my message to Thomas for my suggestion. Hope this helps, Paul.

19 years, 9 months

RE: [Python-Dev] PEP 250 - site-packages on Windows: (Was: [Distu tils] Package DB: strawman PEP)

by Moore, Paul

From: M.-A. Lemburg [mailto:mal@lemburg.com] > I don't have a site-packages dir in my installations. Could it be that > you installed some distutils package which automagically created one > or that this change in Python 2.1.1 ? I don't believe so. I have ActiveState Python - it's possible (although unlikely, I would think) that that version creates site-packages specially. It's vaguely possible (although unlikely) that I created the directory manually - it was missing in one of the 2.1 betas, IIRC, but I thought it reappeared in 2.1 final. In any case, the necessary changes to make sure that directory exists should be in the Windows Installer package(s) for Python. I guess that means somewhere in the Wise installer scripts - which I don't have access to, nor would I know how to change. It should just be a case of reinstating the behaviour in 2.0, if the directory really has been lost in 2.1. > This doesn't seem to do the trick: the Windows installer still installs > the packages directly to \Python21. This change should (as I said, it's untested) have ensured that "python setup.py install" puts the module into site-packages. I don't know what the installer code in bdist_wininst.py does, as it's a base64-encoded EXE, and I don't have the sources - surely it uses the distutils sysconfig stuff to get the value (it has no other way of knowing...)? Paul.

19 years, 9 months

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19 years, 9 months

RE: [Python-Dev] PEP 250 - site-packages on Windows: (Was: [Distu tils] Package DB: strawman PEP)

by Moore, Paul

From: M.-A. Lemburg [mailto:mal@lemburg.com] Tim Peters wrote: > Umm, what am I missing? The change to site.py was so simple you could have > committed it yourself quicker than it took to write the above. I committed > it a few minutes ago. If something else is needed, someone else will have > to do it (or explain it to me in detail so precise they could do it themself > 10x quicker <wink>). > Cool, but what about the changes needed in distutils to actually > utilize the new directory and the changes to the Windows installer > to create the directory at installation time ? The patch I sent along with the final version of the PEP included the distutils change (it's only one line, but it's on the PC at home, so I can't quote it here). I assume that the Python install should ensure that the site-packages exists (it does at the moment) so I don't see a need for the wininst installer to check. Paul. PS [After a quick rummage...] I *think* the following patch is what is needed for distutils: I haven't tested it, though, so it would be better to check the original version (which I did test...) --- sysconfig.py.orig Thu Apr 19 10:24:24 2001 +++ sysconfig.py Thu Jul 12 09:32:34 2001 @@ -87,7 +87,7 @@ elif os.name == "nt": if standard_lib: - return os.path.join(PREFIX, "Lib") + return os.path.join(PREFIX, "Lib", "site-packages") else: return prefix

19 years, 9 months

Re: [Distutils] Package DB: strawman PEP

by Mats Wichmann

At 02:33 PM 7/9/2001 -0400, Mark W. Alexander wrote: >On Sun, 8 Jul 2001, Andrew Kuchling wrote: > >> It seems time to bite the bullet and actually begin designing and >> implementing a database of installed packages. As a strawman to get a >> focused discussion started, here's a draft of a PEP, with lots of >> XXX's in it. Followups to the Distutils SIG, please. > >I'm confused. Why? What does this give us that native package managers >don't. How is it going to keep synchronized with package manager? One problem is that native package managers don't make sense for everything. I can't imagine wanting to even deal with many of the package managers out there for a smaller Python package. I'm not even convinced that one of the major entrants out there - the Windows one - does a reasonable job with dependencies, but I'm pretty ignorant there. And even small packages - a few Python source files - might want to check for prereqs.

19 years, 9 months

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Distutils-SIG July 2001