python 中的导入问题
我是 python 的超级新手，我刚刚部署一个用 python 完成的开源应用程序，我得到一个：
ImportError: Cannot import name DataSource on from django.contrib.gis.gdal import DataSource
但是，这很好：
import django.contrib.gis.gdal
我当前的环境设置是：
- Linux
- Python 2.7 安装在 /opt/python
- GDAL 通过 easy_install 安装，如下所示 '/opt/python /bin/easy_install GDAL'
- 执行 #3 看起来像是安装在这里： '/opt/python/lib/python2.7/site-packages/GDAL-1.7.1-py2.7.egg-info'
有人可以指导我吗请在这儿？
如果我可以import django.contribs.gis.gdal，为什么DataSource无法导入？我假设 DataSource 也是 GDAL 库的一部分？
I'm super new on python and i am just deploying an open source app that was done in python and I'm getting a:
ImportError: cannot import name DataSource on from django.contrib.gis.gdal import DataSource
However, this is just fine:
import django.contrib.gis.gdal
My current environment setup is:
- Linux
- Python 2.7 installed in /opt/python
- GDAL installed via easy_install like so '/opt/python/bin/easy_install GDAL'
- Doing #3 looks like it got installed here: '/opt/python/lib/python2.7/site-packages/GDAL-1.7.1-py2.7.egg-info'
Could someone guide me here please?
If i could do import django.contribs.gis.gdal, how come DataSource cannot be imported? I assume DataSource is also part of the GDAL library?
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你安装了
python-gdal吗？看起来django.contrib.gis.gdal仅公开DataSource类（如果已安装）。至少在 Ubuntu 上，默认安装python-django并没有安装python-gdal。编辑：如下面的评论所述，您确实安装了它，但负责定位它的模块
django/contrib/gis/gdal/libgdal.py没有安装找到它。如果您查看该模块的源代码（例如 http://code.djangoproject.com/browser/django/branches/gis/django/contrib/gis/gdal/libgdal.py?rev=8012），有一个我认为您可以使用 GDAL_LIBRARY_PATH 设置来帮助 Django 找到它。Do you have
python-gdalinstalled? It seems thatdjango.contrib.gis.gdalonly exposes theDataSourceclass if it is installed. At least on Ubuntu, installingpython-djangodidn't installpython-gdalby default.EDIT: as noted in the comments below, you did have it installed, but the module responsible for locating it,
django/contrib/gis/gdal/libgdal.pydid not find it. If you peek in the source for that module (e.g. http://code.djangoproject.com/browser/django/branches/gis/django/contrib/gis/gdal/libgdal.py?rev=8012), there's aGDAL_LIBRARY_PATHsetting that I think you could use to help Django find it.