最近在使用django图片上传时遇到如下很郁闷的问题，在ubuntu12.04 32位操作系统上无法出现，但是在ubuntu64系统上就报如下异常IOError: decoder jpeg not available，从google上找方案，大家都是直接安装python-imaging,libjpeg62 libjpeg62-dev,设置软连就OK啦，可是我这里居然无法搞定，centos下已经解决，唯独ubuntu64下没解决，希望大家有解决方案的一起讨论。
###异常信息
decoder jpeg not available Request Method: POST Request URL: http://localhost:8000/admin/superstar/person/add/ Django Version: 1.3.7 Exception Type: IOError Exception Value: decoder jpeg not available Exception Location: /usr/local/lib/python2.7/dist-packages/PIL/Image.py in _getdecoder, line 385 Python Executable: /usr/bin/python Python Version: 2.7.3 Python Path: ['/home/denghp/workspace/lucida', '/usr/local/lib/python2.7/dist-packages/django_debug_toolbar-0.9.4-py2.7.egg', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/local/lib/python2.7/dist-packages/PIL', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/gst-0.10', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.7', '/usr/lib/python2.7/dist-packages/ubuntu-sso-client', '/usr/lib/python2.7/dist-packages/ubuntuone-client', '/usr/lib/python2.7/dist-packages/ubuntuone-control-panel', '/usr/lib/python2.7/dist-packages/ubuntuone-couch', '/usr/lib/python2.7/dist-packages/ubuntuone-installer', '/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol']
###centos 下解决方案 1、安装PIL所需的系统库
$ yum install zlib zlib-devel $ yum install libjpeg libjpeg-level $ yum install freetype freetype-devel
2、删除Python下安装的PIL
rm -rf /usr/lib/python2.7/site-packages/PIL rm /usr/lib/python2.7/site-packages/PIL.pth #或者 rm -rf /usr/lib/python2.7/dist-packages/PIL rm /usr/lib/python2.7/dist-packages/PIL.pth #如果/usr/local/python2.7/dist-packages/PIL存在最好也全部删除
3、下载安装PIL
$ wget http://effbot.org/media/downloads/Imaging-1.1.7.tar.gz $ tar -zxvf Imaging-1.1.7 $ cd Imaging-1.1.7 $ python setup.py build_ext -i #用来进行安装前的检查 $ #修改setup.py TCL_ROOT = "/usr/lib64/" JPEG_ROOT = "/usr/lib64/" ZLIB_ROOT = "/usr/lib64/" TIFF_ROOT = "/usr/lib64/" FREETYPE_ROOT = "/usr/lib64/" LCMS_ROOT = "/usr/lib64/" $ #安装 $ python setup.py install
4、安装成功
PIL 1.1.7 TEST SUMMARY -------------------------------------------------------------------- Python modules loaded from ./PIL Binary modules loaded from ./PIL -------------------------------------------------------------------- --- PIL CORE support ok --- TKINTER support ok --- JPEG support ok --- ZLIB (PNG/ZIP) support ok --- FREETYPE2 support ok *** LITTLECMS support not installed
5、验证是否成功
$ python
>>> from PIL import Image
>>> im = Image.open("/home/denghp/photo.jpg")
>>> im.rotate(45)
>>> <PIL.Image.Image image mode=RGB size=1169x640 at 0x7F2EE1AD2B90>
正常显示结果不报错，基本上就OK啦，可是我在ubuntu64位下以上都第4，5都没问题，可是在实际运行还是报上面的异常。centos却没问题。下面是网上的方案，我验证了在我这里无法成功
###ubuntu 安装Python PIL模块 1、安装依赖库
sudo apt-get build-dep python-imaging sudo apt-get install libjpeg62 libjpeg62-dev libfreetype6-dev libjpeg libjpeg-dev
2、下载安装PIL 跟centos下一致,安装成功出现如下centos安装步骤4点信息
3、修改软链 32-bit version
sudo ln -s /usr/lib/i386-linux-gnu/libz.so /usr/lib/libz.so sudo ln -s /usr/lib/i386-linux-gnu/libjpeg.so /usr/lib/libjpeg.so sudo ln -s /usr/lib/i386-linux-gnu/libfreetype.so /usr/lib/libfreetype.so
64-bit version
sudo ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib/libz.so sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib/libjpeg.so sudo ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib/libfreetype.so
###求解决方法 ubuntu 64位安装Python PIL模块的方案 如果大家有好的解决方案，麻烦占用你几分钟时间给我出出主意，谢谢.