pip install --upgrade sqlalchemy 给出了超出最大递归深度答案

【问题标题】：pip install --upgrade sqlalchemy gives maximum recursion depth exceededpip install --upgrade sqlalchemy 给出了超出最大递归深度
【发布时间】：2015-09-25 05:20:01
【问题描述】：

我试过pip install --upgrade sqlalchemy，python2.7 setup.py install，删除site-packages中的sqlalchemy文件夹后，我试过pip install sqlalchemy。他们都给出“RuntimeError：在 cmp 中超出最大递归深度”。

  File "C:\Python27\lib\ntpath.py", line 200, in splitext
return genericpath._splitext(p, sep, altsep, extsep)
  File "C:\Python27\lib\genericpath.py", line 102, in _splitext
    sepIndex = max(sepIndex, altsepIndex)
RuntimeError: maximum recursion depth exceeded in cmp

我还尝试运行 v0.9 的 setup.py 并获得相同的结果。尝试在 setup.py 中添加一行以将最大递归设置为 10000 和 python 崩溃。

编辑：回溯是一个很长的重复：

 File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\setuptools\dist.py", line 225, in __init__
    _Distribution.__init__(self,attrs)
  File "c:\python27\lib\distutils\dist.py", line 287, in __init__
    self.finalize_options()
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\setuptools\dist.py", line 257, in finalize_options
    ep.require(installer=self.fetch_build_egg)
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\pkg_resources.py", line 2029, in require
    working_set.resolve(self.dist.requires(self.extras),env,installer))
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\pkg_resources.py", line 580, in resolve
    dist = best[req.key] = env.best_match(req, self, installer)
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\pkg_resources.py", line 825, in best_match
    return self.obtain(req, installer) # try and download/install
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\pkg_resources.py", line 837, in obtain
    return installer(requirement)
  File "c:\python27\lib\site-packages\distribute-0.6.28-py2.7.egg\setuptools\dist.py", line 272, in fetch_build_egg
    dist = self.__class__({'script_args':['easy_install']})
{repeat until max recursion}

【问题讨论】：

标签： python python-2.7 recursion sqlalchemy pip

【解决方案1】：

看起来我的“分发版”（v0.6xxx）已经过时了。我跑了

pip install --upgrade distribute

它安装了 0.7.3。

然后运行pip install sqlalchemy 并安装。

安装其他包时遇到同样的问题。

【讨论】：

您还应该升级 pip 以及您的解决方案，pip install --upgrade pip