ImportError：在虚拟环境中的 Mac OS X 上没有名为 setuptools.command 的模块

Question

尝试在虚拟环境中的 Mac OSX 上安装 Python pip 包（Django Rest Framework 文档，drfdocs）：

这里是pip、python、easy_install的相关版本：

$ virtualenv --version
1.11.4

$ mkvirtualenv test
New python executable in test/bin/python
Installing setuptools, pip...done.

(test)$ python --version; which python
Python 2.7.10
/Users/me/.virtualenvs/test/bin/python

(test)$ pip --version; which pip
pip 1.5.4 from /Users/me/.virtualenvs/test/lib/python2.7/site-packages (python 2.7)
/Users/me/.virtualenvs/test/bin/pip

(test)$ easy_install --version; which easy_install
setuptools 2.2
/Users/me/.virtualenvs/test/bin/easy_install

(test)$ python -c "import setuptools.command; print setuptools.command"
<module 'setuptools.command' from '/Users/me/.virtualenvs/test/lib/python2.7/site-packages/setuptools/command/__init__.pyc'>

这是错误：

$ pip install drfdocs
Downloading/unpacking drfdocs
  Downloading drfdocs-0.0.11.tar.gz (771kB): 771kB downloaded
  Running setup.py (path:/Users/me/.virtualenvs/test/build/drfdocs/setup.py) egg_info for package drfdocs
    Traceback (most recent call last):
      File "<string>", line 3, in <module>
    ImportError: No module named setuptools.command
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 3, in <module>

ImportError: No module named setuptools.command

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /Users/me/.virtualenvs/test/build/drfdocs
Storing debug log for failure in /Users/me/.pip/pip.log

我尝试了来自其他 Stack Overflow 答案 here 的各种修复，但都没有奏效。

$ pip install -U setuptools

也没有帮助。

---

编辑：根据要求：

(test)$ python -c "import setuptools; print setuptools.__file__; print setuptools.__version__"
/Users/me/.virtualenvs/test/lib/python2.7/site-packages/setuptools/__init__.pyc
2.2

---

编辑#2：我试过pip install pip --upgrade，所以现在我在pip==8.1.2。

现在，当我尝试安装时，我得到一个稍微不同的错误：

(test)$ python
Python 2.7.10 (default, Oct 23 2015, 19:19:21) 
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import setuptools
>>> exit()
(test)$ pip --version
pip 8.1.2 from /Users/me/.virtualenvs/test/lib/python2.7/site-packages (python 2.7)
(test)$ pip install drfdocs
Collecting drfdocs
  Using cached drfdocs-0.0.11.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
    ImportError: No module named setuptools

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/kc/00fkv5q91vz815b2jycc8cv40000gn/T/pip-build-olnkAD/drfdocs/

但为什么会发生这种情况仍然没有意义。

Answer 1

这是包中的一个错误。见issue #120

等待v0.1.0或下载package from PyPI，从这个包中删除site目录，安装补丁包。