熊猫 +姜戈 + mod_wsgi +虚拟环境

Question

在虚拟环境中的 django 和 mod_wsgi 下导入时，Pandas 生成的'module'对象没有属性'core'。它在虚拟环境中的 django 开发服务器下运行良好。

其他模块，例如：numpy 没有问题，所以我认为这意味着虚拟环境已使用 mod_wsgi 正确设置。任何建议将不胜感激。

staging.wsgi

import os
import sys
import site

PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
site_packages = os.path.join(PROJECT_ROOT, 'env/openportfolio/lib/python2.7/site-packages')
site.addsitedir(os.path.abspath(site_packages))
sys.path.insert(0, PROJECT_ROOT)
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
os.environ['DJANGO_SETTINGS_MODULE'] = 'openportfolio.settings_staging'

import pandas #triggers error
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()

错误

Traceback (most recent call last):
  File "/usr/local/web/django/www/staging/openportfolio/apache/staging.wsgi", line 22, in <module>
    import pandas
  File "/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages/pandas/__init__.py", line 12, in <module>
    from pandas.core.api import *
  File "/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages/pandas/core/api.py", line 6, in <module>
    import pandas.core.datetools as datetools
  AttributeError: 'module' object has no attribute 'core'  

Python 路径

['/usr/local/web/django/www/staging/openportfolio',
 '/usr/local/web/django/www/staging',
 '/Library/Python/2.7/site-packages/pip-1.0.2-py2.7.egg',
 '/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg',
 '/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg',
 '/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
 '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC',
 '/Library/Python/2.7/site-packages',
 '/usr/local/web/django/www/staging/env/openportfolio/lib/python2.7/site-packages']

Answer 1

事实证明这是一个 Python 路径顺序问题。通过在我的 wsgi 配置文件中运行 sys.path.reverse()，代码现在可以运行。

由于 Python 路径的顺序，必须首先导入内置的 OS X numpy 库，而不是导致问题的虚拟环境。

'RuntimeError: module generated against API version 6 but this version of numpy is 4' 是我在原始帖子中错过的错误行，它可能有助于调试答案。