安装patsy,仍然无法安装statsmodels

当我这样做时,pip install statsmodels它给了我ImportError: statsmodels requires patsy. http://patsy.readthedocs.org,但随后我跑了pip install patsy,它说它成功了,但是运行pip install statsmodels仍然给我同样的错误,要求patsy.

怎么会这样？

$ sudo pip install patsy
Requirement already satisfied (use --upgrade to upgrade): patsy in /Library/Python/2.7/site-packages/patsy-0.3.0-py2.7.egg
Requirement already satisfied (use --upgrade to upgrade): numpy in /Library/Python/2.7/site-packages/numpy-1.8.2-py2.7-macosx-10.9-intel.egg (from patsy)
Cleaning up...
$ sudo pip install statsmodels
Downloading/unpacking statsmodels
  Downloading statsmodels-0.5.0.tar.gz (5.5MB): 5.5MB downloaded
  Running setup.py (path:/private/tmp/pip_build_root/statsmodels/setup.py) egg_info for package statsmodels
    Traceback (most recent call last):
      File "", line 17, in 
      File "/private/tmp/pip_build_root/statsmodels/setup.py", line 463, in 
        check_dependency_versions(min_versions)
      File "/private/tmp/pip_build_root/statsmodels/setup.py", line 122, in check_dependency_versions
        raise ImportError("statsmodels requires patsy. http://patsy.readthedocs.org")
    ImportError: statsmodels requires patsy. http://patsy.readthedocs.org
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "", line 17, in 

  File "/private/tmp/pip_build_root/statsmodels/setup.py", line 463, in 

    check_dependency_versions(min_versions)

  File "/private/tmp/pip_build_root/statsmodels/setup.py", line 122, in check_dependency_versions

    raise ImportError("statsmodels requires patsy. http://patsy.readthedocs.org")

ImportError: statsmodels requires patsy. http://patsy.readthedocs.org

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /private/tmp/pip_build_root/statsmodels
Storing debug log for failure in /Users/Jacob/Library/Logs/pip.log

tscizzle.. 6

错误消息没有告诉你的是模块six不在那里确实存在问题.

通过这样做找到import patsy它并让它失败并告诉我我需要它six.所以我做了pip install six,现在patsy导入工作,就像pip install statsmodels.