Error: Couldn't install: zope.interface 3.4.1

but reciving this error:

...

I am on Ubuntu 9.10.

/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/z3extproject-0.2.1-py2.6.egg/z3extproject/utils.py:4: DeprecationWarning: the sha module is deprecated; use the hashlib module instead

  import sha

Enter user (Name of an initial administrator user): admin

Enter passwd (Password for the initial administrator user): 

Downloading info about versions...

Replace 3176 bytes with 3176 bytes (1/138 lines changed)

Overwrite ./sample/buildout.cfg [y/n/d/B/?] y

Downloading zc.buildout...

Invoking zc.buildout...

Traceback (most recent call last):

  File "<string>", line 1, in <module>

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 1671, in main

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 1659, in with_ei_usage

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 1675, in <lambda>

  File "/usr/lib/python2.6/distutils/core.py", line 152, in setup

    dist.run_commands()

  File "/usr/lib/python2.6/distutils/dist.py", line 975, in run_commands

    self.run_command(cmd)

  File "/usr/lib/python2.6/distutils/dist.py", line 995, in run_command

    cmd_obj.run()

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 211, in run

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 427, in easy_install

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 476, in install_item

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 655, in install_eggs

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 930, in build_and_install

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/easy_install.py", line 919, in run_setup

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/sandbox.py", line 27, in run_setup

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/sandbox.py", line 63, in run

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/sandbox.py", line 29, in <lambda>

  File "setup.py", line 85, in <module>

    

  File "/usr/lib/python2.6/distutils/core.py", line 152, in setup

    dist.run_commands()

  File "/usr/lib/python2.6/distutils/dist.py", line 975, in run_commands

    self.run_command(cmd)

  File "/usr/lib/python2.6/distutils/dist.py", line 995, in run_command

    cmd_obj.run()

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/bdist_egg.py", line 174, in run

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/bdist_egg.py", line 161, in call_command

  File "/usr/lib/python2.6/distutils/cmd.py", line 333, in run_command

    self.distribution.run_command(command)

  File "/usr/lib/python2.6/distutils/dist.py", line 995, in run_command

    cmd_obj.run()

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/install_lib.py", line 20, in run

  File "/usr/lib/python2.6/distutils/command/install_lib.py", line 113, in build

    self.run_command('build_ext')

  File "/usr/lib/python2.6/distutils/cmd.py", line 333, in run_command

    self.distribution.run_command(command)

  File "/usr/lib/python2.6/distutils/dist.py", line 995, in run_command

    cmd_obj.run()

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/build_ext.py", line 46, in run

  File "/usr/lib/python2.6/distutils/command/build_ext.py", line 340, in run

    self.build_extensions()

  File "/usr/lib/python2.6/distutils/command/build_ext.py", line 449, in build_extensions

    self.build_extension(ext)

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/build_ext.py", line 175, in build_extension

  File "/usr/lib/python2.6/distutils/command/build_ext.py", line 460, in build_extension

    ext_path = self.get_ext_fullpath(ext.name)

  File "/usr/lib/python2.6/distutils/command/build_ext.py", line 637, in get_ext_fullpath

    filename = self.get_ext_filename(ext_name)

  File "/home/admin/proj/zope/virtualz3ext/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg/setuptools/command/build_ext.py", line 85, in get_ext_filename

KeyError: '_zope_interface_coptimizations'

An error occured when trying to install zope.interface 3.4.1. Look above this message for any errors that were output by easy_install.

While:

  Installing.

  Getting section app.

  Initializing section app.

  Installing recipe zc.zope3recipes>=0.5.3.

  Getting distribution for 'zope.interface==3.4.1'.

Error: Couldn't install: zope.interface 3.4.1

Yes. Yes.