关于django：尝试导入python模块时的疯狂行为

Crazy behaviour when trying to import python module

我想用Apache mod wsgi部署的django webapp有一些问题，我已经跟踪到这一行(缺少django标记模块)：

1	[Wed Feb 20 13:08:42 2013] [error] [client 172.19.130.50] ImportError: No module named tagging

现在，当我尝试运行pip python(我使用centos 6)作为根用户和apache用户时，下面是我的输出：

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[root@app1 site-packages]# pip-python freeze | grep tag
django-tagging==0.3.1
django-taggit==0.9.3

号

已安装标记…

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[root@app1 site-packages]# sudo -u apache pip-python freeze | grep tag
django-tagging==0.3.1
django-taggit==0.9.3

Apache用户也这么说！

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[root@app1 /]# python
Python 2.6.6 (r266:84292, Sep 11 2012, 08:34:23)
[GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux2
Type"help","copyright","credits" or"license" for more information.
>>> import tagging
>>>

。

确定根可以导入标记！

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[root@app1 /]# sudo -u apache python
Python 2.6.6 (r266:84292, Sep 11 2012, 08:34:23)
[GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux2
Type"help","copyright","credits" or"license" for more information.
>>> import tagging
Traceback (most recent call last):
File"", line 1, in
ImportError: No module named tagging
>>>

但是Apache用户不能！！！！！！！我怎样才能做到这一点？？？？？

我已经仔细检查了/usr/lib/python2.6/site-packages/的所有Django标记权限，它们与我的其他包相同。

更新1：我真的不记得我是如何安装Django标记模块的，但可能是作为根用户，因为Apache无法全局安装模块！

更新2：以下是Martijn Pieters的建议：

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[root@app1 /]# sudo -u apache python -c 'import sys; print sys.path'
['', '/usr/lib64/python2.6/site-packages/Twisted-12.1.0-py2.6-linux-x86_64.egg', '/usr/lib/python2.6/site-packages/django_cas-2.1.1-py2.6.egg', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', '/usr/lib64/python2.6/plat-linux2', '/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', '/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', '/usr/lib/python2.6/site-packages', '/usr/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg-info']
[root@app1 /]# python -c 'import sys; print sys.path'
['', '/usr/lib64/python2.6/site-packages/Twisted-12.1.0-py2.6-linux-x86_64.egg', '/usr/lib/python2.6/site-packages/django_cas-2.1.1-py2.6.egg', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', '/usr/lib64/python2.6/plat-linux2', '/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', '/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', '/usr/lib/python2.6/site-packages', '/usr/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg-info']
[root@app1 /]# sudo -u apache head `which pip-python`
#!/usr/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'pip==0.8','console_scripts','pip'
__requires__ = 'pip==0.8'
import sys
from pkg_resources import load_entry_point

if __name__ == '__main__':
sys.exit(
load_entry_point('pip==0.8', 'console_scripts', 'pip')()
)
[root@app1 /]# head `which pip-python`
#!/usr/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'pip==0.8','console_scripts','pip'
__requires__ = 'pip==0.8'
import sys
from pkg_resources import load_entry_point

if __name__ == '__main__':
sys.exit(
load_entry_point('pip==0.8', 'console_scripts', 'pip')()
)

。

完全相同：(

更新3：是的，Apache用户可以加载其他模块：

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。

更新4：我恨自己。问题在于/usr/lib/python2.6/site-packages/tagging/目录！它们是drw-r--r--(644)而不是正确的drw xr-xr-x(755)，因此apache用户无法进入目录：(

现在一切正常，谢谢你的帮助！