CKAN安装: paster错误

Question

在OSX10.9上本地安装CKAN，基于http://docs.ckan.org/en/latest/maintaining/installing/install-from-source.html。

我已经创建并激活了，现在需要创建一个CKAN配置文件：

$ paster make-config ckan /etc/ckan/default/development.ini

输出如下(最后一行为ImportError)：

Distribution already installed:
      ckan 2.2 from ~/ckan/lib/default/src/ckan
    Traceback (most recent call last):
      File "/usr/lib/ckan/default/bin/paster", line 9, in <module>
        load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 104, in run
        invoke(command, command_name, options, args[1:])
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 143, in invoke
        exit_code = runner.run(args)
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 68, in run
        return super(AbstractInstallCommand, self).run(new_args)
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/command.py", line 238, in run
        result = self.command()
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 295, in command
        self.distro, self.options.ep_group, self.options.ep_name)
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/paste/script/appinstall.py", line 234, in get_installer
        'paste.app_install', ep_name)
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources.py", line 2302, in load_entry_point
        return ep.load()
      File "/usr/lib/ckan/default/lib/python2.7/site-packages/pkg_resources.py", line 2029, in load
        entry = __import__(self.module_name, globals(),globals(), ['__name__'])
      File "~/ckan/lib/default/src/ckan/ckan/config/install.py", line 3, in <module>
        from pylons.util import PylonsInstaller
    ImportError: No module named pylons.util

我不知道该怎么做，有什么想法吗？

Answer 1

ImportError: No module named pylons.util看起来好像找不到Pylons包，这是CKAN所依赖的一个package。想到了两种可能性：

1. 在运行paster命令之前，激活了您的CKAN虚拟you吗？~/ckan/default/bin/activate。
2. 您是否将CKAN所依赖的Python包安装到您的虚拟环境中？使用virtualenv激活运行pip install -r ~/ckan/default/src/ckan/requirements.txt

如果您激活您的CKAN虚拟环境，然后运行pip freeze | grep pylons，这将告诉您是否在虚拟环境中安装了幽门。

终端输出顶部的Distribution already installed:很奇怪。

Answer 2

我有同样的错误和一个稍微不同的解决方案：

1. 只有在使用sudo后才得到错误，所以我退出了它(sudo -k)
2. 然后我得到了以下错误：IOError: [Errno 13] Permission denied: '/etc/ckan/default/development.ini'
3. 在深入研究之后，我终于发现虽然/etc/ckan拥有正确的权限，但它实际上是一个指向~/ckan/etc的符号链接，并且该文件夹没有正确的权限。
4. 我运行了sudo chown -R `whoami` ~/ckan/etc，并跟踪了paster make-config ckan /etc/ckan/default/development.ini