Message4040

I am able to install Django 1.0.2 successfully using Jython2.5b0 using:
jython setup.py install. This fails in Jython2.5b1 with the following
output (I get the same behavior on Windows and Linux):

$jython setup.py install
running install
running build
running build_py
running build_scripts
running install_lib
copying build/lib/django/db/models/manager.py ->
/usr/local/share/jython/current/Lib/site-packages/django/db/models
Traceback (most recent call last):
  File "setup.py", line 73, in <module>
    setup(
  File "/usr/local/share/jython/current/Lib/distutils/core.py", line
151, in setup
    dist.run_commands()
  File "/usr/local/share/jython/current/Lib/distutils/core.py", line
151, in setup
    dist.run_commands()
  File "/usr/local/share/jython/current/Lib/distutils/dist.py", line
974, in run_commands
    self.run_command(cmd)
  File "/usr/local/share/jython/current/Lib/distutils/dist.py", line
994, in run_command
    cmd_obj.run()
  File
"/usr/local/share/jython/current/Lib/distutils/command/install.py", line
517, in run
    self.run_command(cmd_name)
  File "/usr/local/share/jython/current/Lib/distutils/cmd.py", line 333,
in run_command
    self.distribution.run_command(command)
  File "/usr/local/share/jython/current/Lib/distutils/dist.py", line
994, in run_command
    cmd_obj.run()
  File
"/usr/local/share/jython/current/Lib/distutils/command/install_lib.py",
line 95, in run
    outfiles = self.install()
  File
"/usr/local/share/jython/current/Lib/distutils/command/install_lib.py",
line 116, in install
    outfiles = self.copy_tree(self.build_dir, self.install_dir)
  File "/usr/local/share/jython/current/Lib/distutils/cmd.py", line 385,
in copy_tree
    return dir_util.copy_tree(
  File "/usr/local/share/jython/current/Lib/distutils/dir_util.py", line
169, in copy_tree
    outputs.extend(
  File "/usr/local/share/jython/current/Lib/distutils/dir_util.py", line
169, in copy_tree
    outputs.extend(
  File "/usr/local/share/jython/current/Lib/distutils/dir_util.py", line
169, in copy_tree
    outputs.extend(
  File "/usr/local/share/jython/current/Lib/distutils/dir_util.py", line
174, in copy_tree
    copy_file(src_name, dst_name, preserve_mode,
  File "/usr/local/share/jython/current/Lib/distutils/file_util.py",
line 172, in copy_file
    os.utime(dst, (st[ST_ATIME], st[ST_MTIME]))
  File "/usr/local/share/jython/current/Lib/os.py", line 557, in utime
    atimeval = _to_timeval(times[0])
  File "/usr/local/share/jython/current/Lib/os.py", line 574, in _to_timeval
    from org.jruby.ext.posix.util import Platform
ImportError: No module named jruby