Python，pinax，django，windows AttributeError：'模块'对象没有属性'call_subprocess'

我在窗户上安装了pinax

试图创build一个项目后，我得到这个错误：

(mysite) C:\virtualenvs\mysite>pinax-admin setup_project mypinax Created project mypinax Installing project requirements... Traceback (most recent call last): File "c:\virtualenvs\mysite\Scripts\pinax-admin-script.py", line 8, in <module> load_entry_point('Pinax==0.9a2', 'console_scripts', 'pinax-admin')() File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\__init__.py", line 105, in execute_from_command_line runner.execute() File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\__init__.py", line 94, in execute self.loader.load(command).run_from_argv(argv) File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\base.py", lin e 45, in run_from_argv self.handle(*args, **options.__dict__) File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\commands\setup_project.py", line 66, in handle self.setup_project(args[0], options["base"], options) File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\commands\setup_project.py", line 134, in setup_project installer.install_reqs(not options["allow_no_virtualenv"]) File "c:\virtualenvs\mysite\lib\site-packages\pinax\core\management\commands\setup_project.py", line 207, in install_reqs pip.call_subprocess([ AttributeError: 'module' object has no attribute 'call_subprocess' 

我会感谢任何帮助。 顺便说一句，我使用Python 2.7.3和最新的稳定pinax版本