Question

所以我终于在RHEL5上用Django（开发版）和/opt/python2.6上安装的Python 2.6成功安装了PIL（经过很多困难）。

运行selftest.py表示一切似乎都已正确安装：

$ python2.6 selftest.py 
57 tests passed.

我可以毫无困难地上传.png文件和.gif文件，但在尝试使用ImageField上传.jpg文件时遇到问题：“上传有效图片。您上传的文件不是图片或图片已损坏。“

我看到了这个other question并运行测试以查看PIL是否会验证图像，它确实：

>>> from PIL import Image
>>> trial_image=Image.open("/tmp/jordanthecoder.jpg")
>>> trial_image.verify()
>>>

可能发生什么事？显然，允许JPEG是很重要的。我意识到一个选项是使用FileField，然后检查以确保它是GIF，PNG或JPEG之一，但我更喜欢使用内置对象。

如果这有用，这里是上面shell的详细显示：

$ python2.6 -v
Python 2.6.4 (r264:75706, Jan 15 2010, 14:42:33) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/readline.so", 2);
import readline # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/readline.so
>>> from PIL import Image
import PIL # directory /opt/python2.6/lib/python2.6/site-packages/PIL
# /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.py
import PIL # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/Image.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/Image.py
import PIL.Image # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/Image.pyc
# /opt/python2.6/lib/python2.6/lib-tk/FixTk.pyc matches /opt/python2.6/lib/python2.6/lib-tk/FixTk.py
import FixTk # precompiled from /opt/python2.6/lib/python2.6/lib-tk/FixTk.pyc
import ctypes # directory /opt/python2.6/lib/python2.6/ctypes
# /opt/python2.6/lib/python2.6/ctypes/__init__.pyc matches /opt/python2.6/lib/python2.6/ctypes/__init__.py
import ctypes # precompiled from /opt/python2.6/lib/python2.6/ctypes/__init__.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/_ctypes.so", 2);
import _ctypes # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/_ctypes.so
# /opt/python2.6/lib/python2.6/struct.pyc matches /opt/python2.6/lib/python2.6/struct.py
import struct # precompiled from /opt/python2.6/lib/python2.6/struct.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/_struct.so", 2);
import _struct # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/_struct.so
# /opt/python2.6/lib/python2.6/ctypes/_endian.pyc matches /opt/python2.6/lib/python2.6/ctypes/_endian.py
import ctypes._endian # precompiled from /opt/python2.6/lib/python2.6/ctypes/_endian.pyc
dlopen("/opt/python2.6/lib/python2.6/site-packages/PIL/_imaging.so", 2);
import PIL._imaging # dynamically loaded from /opt/python2.6/lib/python2.6/site-packages/PIL/_imaging.so
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.py
import PIL.ImageMode # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.py
import PIL.ImagePalette # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/array.so", 2);
import array # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/array.so
# /opt/python2.6/lib/python2.6/string.pyc matches /opt/python2.6/lib/python2.6/string.py
import string # precompiled from /opt/python2.6/lib/python2.6/string.pyc
# /opt/python2.6/lib/python2.6/re.pyc matches /opt/python2.6/lib/python2.6/re.py
import re # precompiled from /opt/python2.6/lib/python2.6/re.pyc
# /opt/python2.6/lib/python2.6/sre_compile.pyc matches /opt/python2.6/lib/python2.6/sre_compile.py
import sre_compile # precompiled from /opt/python2.6/lib/python2.6/sre_compile.pyc
import _sre # builtin
# /opt/python2.6/lib/python2.6/sre_parse.pyc matches /opt/python2.6/lib/python2.6/sre_parse.py
import sre_parse # precompiled from /opt/python2.6/lib/python2.6/sre_parse.pyc
# /opt/python2.6/lib/python2.6/sre_constants.pyc matches /opt/python2.6/lib/python2.6/sre_constants.py
import sre_constants # precompiled from /opt/python2.6/lib/python2.6/sre_constants.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/strop.so", 2);
import strop # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/strop.so
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/operator.so", 2);
import operator # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/operator.so
>>> trial_image=Image.open("/tmp/jordanthecoder.jpg")
# /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.py
import PIL.BmpImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.py
import PIL.ImageFile # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.pyc
# /opt/python2.6/lib/python2.6/traceback.pyc matches /opt/python2.6/lib/python2.6/traceback.py
import traceback # precompiled from /opt/python2.6/lib/python2.6/traceback.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.py
import PIL.GifImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.py
import PIL.JpegImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.py
import PIL.PpmImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.py
import PIL.PngImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.pyc
>>> trial_image.verify()
>>> fake_image = Image.open("/tmp/fakeimage.jpg") #text file ending in .jpg
# /opt/python2.6/lib/python2.6/site-packages/PIL/CurImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/CurImagePlugin.py
import PIL.CurImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/CurImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ArgImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ArgImagePlugin.py
import PIL.ArgImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ArgImagePlugin.pyc
import marshal # builtin
# /opt/python2.6/lib/python2.6/site-packages/PIL/Hdf5StubImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/Hdf5StubImagePlugin.py
import PIL.Hdf5StubImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/Hdf5StubImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/MspImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/MspImagePlugin.py
import PIL.MspImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/MspImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/MicImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/MicImagePlugin.py
import PIL.MicImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/MicImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/TiffImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/TiffImagePlugin.py
import PIL.TiffImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/TiffImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/OleFileIO.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/OleFileIO.py
import PIL.OleFileIO # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/OleFileIO.pyc
# /opt/python2.6/lib/python2.6/StringIO.pyc matches /opt/python2.6/lib/python2.6/StringIO.py
import StringIO # precompiled from /opt/python2.6/lib/python2.6/StringIO.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/FitsStubImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/FitsStubImagePlugin.py
import PIL.FitsStubImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/FitsStubImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/MpegImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/MpegImagePlugin.py
import PIL.MpegImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/MpegImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PixarImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PixarImagePlugin.py
import PIL.PixarImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PixarImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/DcxImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/DcxImagePlugin.py
import PIL.DcxImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/DcxImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PcxImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PcxImagePlugin.py
import PIL.PcxImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PcxImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/WmfImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/WmfImagePlugin.py
import PIL.WmfImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/WmfImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/XVThumbImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/XVThumbImagePlugin.py
import PIL.XVThumbImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/XVThumbImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/XbmImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/XbmImagePlugin.py
import PIL.XbmImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/XbmImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImtImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImtImagePlugin.py
import PIL.ImtImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImtImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/IptcImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/IptcImagePlugin.py
import PIL.IptcImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/IptcImagePlugin.pyc
# /opt/python2.6/lib/python2.6/tempfile.pyc matches /opt/python2.6/lib/python2.6/tempfile.py
import tempfile # precompiled from /opt/python2.6/lib/python2.6/tempfile.pyc
# /opt/python2.6/lib/python2.6/random.pyc matches /opt/python2.6/lib/python2.6/random.py
import random # precompiled from /opt/python2.6/lib/python2.6/random.pyc
# /opt/python2.6/lib/python2.6/__future__.pyc matches /opt/python2.6/lib/python2.6/__future__.py
import __future__ # precompiled from /opt/python2.6/lib/python2.6/__future__.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/math.so", 2);
import math # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/math.so
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/binascii.so", 2);
import binascii # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/binascii.so
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/_random.so", 2);
import _random # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/_random.so
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/cStringIO.so", 2);
import cStringIO # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/cStringIO.so
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/fcntl.so", 2);
import fcntl # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/fcntl.so
import thread # builtin
# /opt/python2.6/lib/python2.6/site-packages/PIL/GribStubImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/GribStubImagePlugin.py
import PIL.GribStubImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/GribStubImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/TgaImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/TgaImagePlugin.py
import PIL.TgaImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/TgaImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/BufrStubImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/BufrStubImagePlugin.py
import PIL.BufrStubImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/BufrStubImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/FpxImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/FpxImagePlugin.py
import PIL.FpxImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/FpxImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/SgiImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/SgiImagePlugin.py
import PIL.SgiImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/SgiImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/FliImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/FliImagePlugin.py
import PIL.FliImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/FliImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PcdImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PcdImagePlugin.py
import PIL.PcdImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PcdImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PalmImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PalmImagePlugin.py
import PIL.PalmImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PalmImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/XpmImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/XpmImagePlugin.py
import PIL.XpmImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/XpmImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImImagePlugin.py
import PIL.ImImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/SunImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/SunImagePlugin.py
import PIL.SunImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/SunImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/IcnsImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/IcnsImagePlugin.py
import PIL.IcnsImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/IcnsImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/McIdasImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/McIdasImagePlugin.py
import PIL.McIdasImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/McIdasImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PdfImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PdfImagePlugin.py
import PIL.PdfImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PdfImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/GbrImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/GbrImagePlugin.py
import PIL.GbrImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/GbrImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/EpsImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/EpsImagePlugin.py
import PIL.EpsImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/EpsImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/IcoImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/IcoImagePlugin.py
import PIL.IcoImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/IcoImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/SpiderImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/SpiderImagePlugin.py
import PIL.SpiderImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/SpiderImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PsdImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PsdImagePlugin.py
import PIL.PsdImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PsdImagePlugin.pyc
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/python2.6/lib/python2.6/site-packages/PIL/Image.py", line 1916, in open
    raise IOError("cannot identify image file")
IOError: cannot identify image file

更新

这是$ python manage.py shell的输出（跳过初始导入语句）：

Python 2.6.4 (r264:75706, Jan 15 2010, 14:42:33) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from PIL import Image
import PIL # directory /opt/python2.6/lib/python2.6/site-packages/PIL
# /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.py
import PIL # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/__init__.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/Image.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/Image.py
import PIL.Image # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/Image.pyc
# /opt/python2.6/lib/python2.6/lib-tk/FixTk.pyc matches /opt/python2.6/lib/python2.6/lib-tk/FixTk.py
import FixTk # precompiled from /opt/python2.6/lib/python2.6/lib-tk/FixTk.pyc
import ctypes # directory /opt/python2.6/lib/python2.6/ctypes
# /opt/python2.6/lib/python2.6/ctypes/__init__.pyc matches /opt/python2.6/lib/python2.6/ctypes/__init__.py
import ctypes # precompiled from /opt/python2.6/lib/python2.6/ctypes/__init__.pyc
dlopen("/opt/python2.6/lib/python2.6/lib-dynload/_ctypes.so", 2);
import _ctypes # dynamically loaded from /opt/python2.6/lib/python2.6/lib-dynload/_ctypes.so
# /opt/python2.6/lib/python2.6/ctypes/_endian.pyc matches /opt/python2.6/lib/python2.6/ctypes/_endian.py
import ctypes._endian # precompiled from /opt/python2.6/lib/python2.6/ctypes/_endian.pyc
dlopen("/opt/python2.6/lib/python2.6/site-packages/PIL/_imaging.so", 2);
import PIL._imaging # dynamically loaded from /opt/python2.6/lib/python2.6/site-packages/PIL/_imaging.so
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.py
import PIL.ImageMode # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImageMode.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.py
import PIL.ImagePalette # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImagePalette.pyc
>>> trial_image=Image.open("/tmp/jordanthecoder.jpg")
# /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.py
import PIL.BmpImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/BmpImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.py
import PIL.ImageFile # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/ImageFile.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.py
import PIL.GifImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/GifImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.py
import PIL.JpegImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/JpegImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.py
import PIL.PpmImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PpmImagePlugin.pyc
# /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.pyc matches /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.py
import PIL.PngImagePlugin # precompiled from /opt/python2.6/lib/python2.6/site-packages/PIL/PngImagePlugin.pyc
>>> trial_image.verify()
>>>

更新＃2：

好的，所以我决定完全绕过ImageField，看看PIL自己做了些什么。这是有问题的代码（在我的views.py文件中）：

def test_image(request):
    i = Image.open("/tmp/jordanthecoder.jpg")
    t = i.verify()
    return HttpResponse("Image is "+repr(i.info))

这是网页输出：

Image is {'jfif_version': (1, 1), 'jfif': 257, 'jfif_unit': 1, 'jfif_density': (72, 72), 'dpi': (72, 72)}

更新＃3

因此，这些是两个不同系统的模块和路径。我不确定为什么他们会如此不同以及我可以做些什么来改变网络版的行为。

他们实际上使用的是不同的JSON模块，非常确定这没什么区别。除此之外，这里有不同的模块。假设这些模块都位于/opt/python2.6 /...

中

仅限网络版：

django.contrib.sessions.*, django.core.email, django.core.handlers.*, django.core.mail, django.core.mimetypes, django.core.os, django.core.random, django.core.smtplib, django.core.socket, django.core.time, django.middleware.*, email.*, encodings.ascii, hmac, mimetypes, mod_wsgi, smtplib, uu

仅限shell版本：

code, codeop, django.core.management.*, readline, rlcompleter, settings, user

由于

**更新＃4 **

看起来问题是apache使用的是不正确的libjpeg.so，而python正在使用正确的libjpeg.so。我创建了更多generalized version of the question that isn't specific to Django.

Answer 1

请参阅：

中的可能答案

Is it possible to control which libraries apache uses?

在这里参考，如果获奖，仍然可以得到赏金。： - ）

Answer 2

我对PIL JPEG问题的印象是它几乎总是系统配置问题。

您构建并配置了PIL并使用该版本进行了测试，但它确实有效。所以，我的猜测是Django正在推出一个不同的PIL，可能是没有JPEG支持或者找不到libjpeg。

您可以通过再次运行测试但使用python -v manage.py shell而不是直接运行python2.6来确认这一点。你需要在这里小心，并确保你的python可执行文件和PYTHONPATH完全匹配你的web服务器加载的。

在Django中获取无效的图像错误，但安装了PIL并通过了所有测试

2 个答案: