virtualenv ./env 失败

New python executable in ./env/bin/python
Installing Setuptools....................
Complete output from command /home/lvzhuo/workspa...board/env/bin/python setup.py install --single-version-externally-managed --record record:
Traceback (most recent call last):
File "setup.py", line 17, in <module>
exec(init_file.read(), command_ns)
File "<string>", line 8, in <module>
File "/tmp/tmpTxJqbf/setuptools-0.9.8/setuptools/__init__.py", line 2, in <module>
from setuptools.extension import Extension, Library
File "/tmp/tmpTxJqbf/setuptools-0.9.8/setuptools/extension.py", line 5, in <module>
from setuptools.dist import _get_unpatched
File "/tmp/tmpTxJqbf/setuptools-0.9.8/setuptools/dist.py", line 7, in <module>
from setuptools.command.install import install
File "/tmp/tmpTxJqbf/setuptools-0.9.8/setuptools/command/__init__.py", line 8, in <module>
from setuptools.command import install_scripts
File "/tmp/tmpTxJqbf/setuptools-0.9.8/setuptools/command/install_scripts.py", line 3, in <module>
from pkg_resources import Distribution, PathMetadata, ensure_directory
File "/tmp/tmpTxJqbf/setuptools-0.9.8/pkg_resources.py", line 16, in <module>
import sys, os, time, re, imp, types, zipfile, zipimport
ImportError: No module named time
----------------------------------------
...Installing Setuptools...done.
Traceback (most recent call last):
File "/usr/bin/virtualenv", line 3, in <module>
virtualenv.main()
File "/usr/lib/python2.6/site-packages/virtualenv.py", line 821, in main
symlink=options.symlink)
File "/usr/lib/python2.6/site-packages/virtualenv.py", line 961, in create_environment
install_sdist('Setuptools', 'setuptools-*.tar.gz', py_executable, search_dirs)
File "/usr/lib/python2.6/site-packages/virtualenv.py", line 932, in install_sdist
filter_stdout=filter_install_output)
File "/usr/lib/python2.6/site-packages/virtualenv.py", line 899, in call_subprocess
% (cmd_desc, proc.returncode))
OSError: Command /home/lvzhuo/workspa...board/env/bin/python setup.py install --single-version-externally-managed --record record failed with error code 1


各位大侠，求助！！！