生成Python项目时出现Setuptools版本冲突错误

Question

我正试图构建一个python项目，但在使用setuptools时遇到了版本冲突错误。我收到以下错误消息：

An internal error occurred due to a bug in either zc.buildout or in a
recipe being used:
Traceback (most recent call last):
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 1942, in main
    getattr(buildout, command)(args)
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 463, in install
    self._load_extensions()
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 998, in _load_extensions
    ep.load()(self)
  File "/Users/raul/PhpstormProjects/clients/ceres/test/ceres/eggs/buildout.eggtractor-0.6-py2.6.egg/buildout/eggtractor/tractor.py", line 68, in install
    part_names = [n for n in buildout['buildout']['tractor-target-parts'].split() if n in buildout]
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/UserDict.py", line 105, in __contains__
    return self.has_key(key)
  File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/UserDict.py", line 100, in has_key
    value = self[key]
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 1094, in __getitem__
    options._initialize()
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 1198, in _initialize
    self.initialize()
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 1204, in initialize
    recipe_class = _install_and_load(reqs, 'zc.buildout', entry, buildout)
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/buildout.py", line 1158, in _install_and_load
    allow_hosts=buildout._allow_hosts
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/easy_install.py", line 812, in install
    return installer.install(specs, working_set)
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/easy_install.py", line 653, in install
    self._maybe_add_setuptools(ws, dist)
  File "/project/eggs/zc.buildout-2.2.0-py2.6.egg/zc/buildout/easy_install.py", line 595, in _maybe_add_setuptools
    if ws.find(requirement) is None:
  File "/Library/Python/2.6/site-packages/pkg_resources.py", line 515, in find
    raise VersionConflict(dist,req)     # XXX add more info
VersionConflict: (setuptools 0.8 (/Library/Python/2.6/site-packages/setuptools-0.8-py2.6.egg), Requirement.parse('setuptools==0.6c11'))

此错误与此处讨论的错误相似：How to solve pkg_resources.VersionConflict error during bin/python bootstrap.py -d

关键的区别在于，我的错误告诉我从0.8版本降级到0.6cll，而链接帖子中的错误需要升级才能解决错误。在

另请注意以下声明：需求分析（'setuptools==0.6c11'）。这似乎需要完全匹配，即使安装了更新的版本也会导致错误。在

事实上，我已经尝试过降级到0.6c11版本，得到以下错误消息：

^{pr2}$

因此，似乎有些东西需要setuptoos==0.6c11，而另一些东西需要setuptools>；=0.7。我很确定我不能同时满足这两个要求。在

我正在尝试在macosx10.7上设置一个开发环境，并使用pythonversion2.6（项目需要）。你知道我怎么解决这个问题吗？在

任何帮助都是非常欢迎的。在

Answer 1

我能够解决这个问题，并张贴解决方案，以防有人遇到同样的问题。在

事实证明，这个问题是由使用Xcode开发工具附带的Python2.6版本引起的。这个版本的python坚持使用setuptools版本0.6c11。因为我正在安装的应用程序（Plone CMS）需要setuptools>；=0.7的版本，所以我不能使用Mac提供的Python版本。在

相反，我从源代码安装了一个python2.6的替代版本（可从这里获得：http://www.python.org/download/releases/2.6.7/）。我使用了新安装的python版本，并能够成功地运行引导.py脚本。在