Anaconda更新与pip更新和conda更新冲突，安装在anaconda中的pip好像坏了

Question

我刚开始在 Ubuntu 12.04 上使用 anaconda。当我尝试按照here 的说明进行更新时，我遇到了冲突：

nikos@nikos-hp:~$ conda update conda
# All packages already at latest version, nothing to do.
# packages in environment at /home/nikos/anaconda:
#
# Warning: Your version of pip is older than what conda requires for pip
# integration, so pip-installed packages will not be displayed.  Please
# update pip, (conda update pip -p /home/nikos/anaconda)

conda                     2.3.1                    py27_0  

所以我更新 pip

nikos@nikos-hp:~$ conda update pip -p /home/nikos/anaconda

更新到 pip-1.5，并将其链接到 anaconda。然后我也继续更新 anaconda

nikos@nikos-hp:~$ conda update anaconda

此时我停止了，因为此更新似乎想要链接回我刚刚升级的 pip-1.4.1。

据我从这篇帖子here 了解到，即使 conda 警告我升级到 1.5，我也应该坚持使用 pip 1.4.1。但是，无论我链接哪个版本，我都会收到错误

nikos@nikos-hp:~/anaconda/bin$ ./pip list
apptools (4.2.0)
astropy (0.2.5)
atom (0.3.4)
.
.
scikit-learn (0.14.1)
scipy (0.13.0)
Exception:
Traceback (most recent call last):
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/basecommand.py", line 134, in main
    status = self.run(options, args)
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/commands/list.py", line 80, in run
    self.run_listing(options)
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/commands/list.py", line 127, in run_listing
    self.output_package_listing(installed_packages)
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/commands/list.py", line 136, in output_package_listing
    if dist_is_editable(dist):
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/util.py", line 347, in dist_is_editable
    req = FrozenRequirement.from_dist(dist, [])
  File "/home/nikos/anaconda/lib/python2.7/site-packages/pip/__init__.py", line 207, in from_dist
    assert len(specs) == 1 and specs[0][0] == '=='
AssertionError

Answer 1

问题是影响 pip 的分发中的错误。该错误消息有点误导，因为您只是被告知“pip list”发生错误

要解决此问题，您需要删除分发，然后安装 setuptools（替换分发）。

conda remove distribute
conda update setuptools 

这些命令应该可以解决问题。这将在 Anaconda 的下一个版本中修复。