python - 在 Django 中获取无效图像错误，但已安装 PIL 并通过所有测试

Question

所以我终于在 RHEL5 上成功安装了 PIL(经过许多困难)，Django(开发版)和 Python 2.6 安装在/opt/python2.6。

运行 selftest.py 显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，但是在尝试使用 ImageField 上传 .jpg 文件时遇到问题:“上传有效图像。您上传的文件不是图像或损坏的图像”

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

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

可能发生了什么？显然，允许 JPEG 很重要。我意识到一种选择是改用 FileField，然后检查以确保它是 GIF、PNG 或 JPEG 之一，但我更愿意使用内置对象。

如果这有帮助，下面是上面 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:

好吧，所以我决定完全绕过 ImageField，看看 PIL 自己做了什么。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。我不太清楚为什么它们如此不同以及我可以做些什么来改变网络版本的行为。

他们实际上使用了不同的 JSON 模块，很确定这没有区别。除此之外，这里是不同的模块。假设这些模块都位于/opt/python2.6/...

仅限网页版:

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

仅在 shell 版本中:

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

谢谢

** 更新 #4 **

看起来问题是 apache 使用了不正确的 libjpeg.so，而 python 使用了正确的。我创建了更多 generalized version of the question that isn't specific to Django.

Answer 1

查看可能的答案:

Is it possible to control which libraries apache uses?

引用此处，因此如果获奖仍然可以获得赏金。 :-)