distutils support in Jython

May 21, 2003

I wanted to play around with Jython, especially because I believe that Web services and dynamic languages should be a nice match. This is actually my first contact with Python, so I got stuck with a pretty simple problem: Most Python packages come with an installation routine based on distutils. Unfortunately, I was unable to install anything this way because distutils is not available with a standard Jython installation.
So I grabbed the distutils source itself, which I was unable to install either - it seems not to run with Jython out of the box.
The following two patches, based on information in the distutils mailing list, did the trick:
I added this to to INSTALL_SCHEMES dictionary:



     'java': {

         'purelib': '$base',

         'platlib': '$base',

         'headers': '$base/Include/$dist_name',

         'scripts': '$base/Scripts',

         'data'   : '$base',

         },

and then patched file_util.py from


            if preserve_times:

                os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))

            if preserve_mode:

                os.chmod(dst, S_IMODE(st[ST_MODE]))

to this:


            if hasattr(os, 'utime'):

                if preserve_times:

                    os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))

            if hasattr(os, 'chmod'):

                if preserve_mode:

                    os.chmod(dst, S_IMODE(st[ST_MODE]))

Ugly, probably stupid as hell ... but it worked.


About

This page contains a single entry from Stefan Tilkov's Random Stuff posted on May 21, 2003 4:33 PM. The previous post in this blog was OPML and Blogroll. The next post in this blog is Tim Bray on RDF. Many more can be found on the main index page or by looking through the archives.

Comments

The second blurb can be simplified and possibly more efficient as:

            if preserve_times and hasattr(os, 'utime'):

                os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))

            if preserve_mode and hasattr(os, 'chmod')::

                os.chmod(dst, S_IMODE(st[ST_MODE]))

the hasattr will never run if the first is false, and that’s really the important condition.

That said, this isn’t working for me with latest Jython, though I did find that some people are trying to make utime and chmod work with a new javaos.py implementation.

Posted by: Justin Ryan at March 20, 2007 5:34 AM | link