Pillow 返回错误：“IOError：图像文件被截断（6 个字节未处理）”

Posted 2023-03-29

【中文标题】Pillow 返回错误：“IOError：图像文件被截断（6 个字节未处理）”

【英文标题】：Pillow returns the error : "IOError: image file is truncated (6 bytes not processed)"

【发布时间】：2017-11-05 05:50:41

【问题描述】：

我将 Pillow 4.1.1 与 Python 2.7 / Django 1.9 一起使用

我的网站上有成千上万张用户上传的图片，我使用枕头从模板中生成缩略图。

例如：

% thumbnail apicture.file "1200x350" crop="center" as im %
    <img src=" im.url " width=100%>
% endthumbnail %

直到本周为止，它都运行良好。 Django 现在显示此错误：

IOError: image file is truncated (6 bytes not processed)

*** 上的解决方案不起作用，因为它们都适用于视图而不是模板（例如 ImageFile.LOAD_TRUNCATED_IMAGES = True）。

有没有一种简单的方法来识别哪些图片会产生这个错误？这个bug怎么解决？

这是完整的回溯：

Internal Server Error: /trip/province-dublin-2034
Traceback (most recent call last):
  File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 149, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 147, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)    
  File "C:\Terradiem\terradiem\trip\views.py", line 300, in trip
    return render(request, 'trip/results.html', qsall)
  File "C:\Python27\lib\site-packages\django\shortcuts.py", line 67, in render template_name, context, request=request, using=using)
  File "C:\Python27\lib\site-packages\django\template\loader.py", line 97, in render_to_string
    return template.render(context, request)
  File "C:\Python27\lib\site-packages\django\template\backends\django.py", line 95, in render
    return self.template.render(context)
  File "C:\Python27\lib\site-packages\django\template\base.py", line 206, in render
    return self._render(context)
  File "C:\Python27\lib\site-packages\django\test\utils.py", line 92, in instrumented_test_render
    return self.nodelist.render(context)
  File "C:\Python27\lib\site-packages\django\template\base.py", line 992, in render
    bit = node.render_annotated(context)
  File "C:\Python27\lib\site-packages\django\template\base.py", line 959, in render_annotated
    return self.render(context)
  File "C:\Python27\lib\site-packages\django\template\defaulttags.py", line 220, in render
    nodelist.append(node.render_annotated(context))
  File "C:\Python27\lib\site-packages\django\template\base.py", line 959, in render_annotated
    return self.render(context)
  File "C:\Python27\lib\site-packages\django\template\defaulttags.py", line 220, in render
    nodelist.append(node.render_annotated(context))
  File "C:\Python27\lib\site-packages\django\template\base.py", line 959, in render_annotated
    return self.render(context)
  File "C:\Python27\lib\site-packages\django\template\defaulttags.py", line 326, in render
    return nodelist.render(context)
  File "C:\Python27\lib\site-packages\django\template\base.py", line 992, in render
    bit = node.render_annotated(context)
  File "C:\Python27\lib\site-packages\django\template\base.py", line 959, in render_annotated
    return self.render(context)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\templatetags\thumbnail.py", line 59, in render
    return self._render(context)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\templatetags\thumbnail.py", line 137, in _render
    thumbnail = get_thumbnail(file_, geometry, **options)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\shortcuts.py", line 8, in get_thumbnail
    return default.backend.get_thumbnail(file_, geometry_string, **options)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\base.py", line 125, in get_thumbnail
    thumbnail)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\base.py", line 157, in _create_thumbnail
    image = default.engine.create(source_image, geometry, options)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\engines\base.py", line 21, in create
    image = self.colorspace(image, geometry, options)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\engines\base.py", line 53, in colorspace
    return self._colorspace(image, colorspace)
  File "C:\Python27\lib\site-packages\sorl\thumbnail\engines\pil_engine.py", line 101, in _colorspace
    return image.convert('RGB')
  File "C:\Python27\lib\site-packages\PIL\Image.py", line 844, in convert
self.load()
  File "C:\Python27\lib\site-packages\PIL\ImageFile.py", line 226, in load
"(%d bytes not processed)" % len(b))
IOError: image file is truncated (6 bytes not processed)

谢谢

【问题讨论】：

很可能，相关图像的标题包含有关内容长度的错误信息（可能已损坏）。您可以通过显式捕获和处理该错误来解决此问题，可能同时测试来自标头的内容长度信息。

只要ImageFile.LOAD_TRUNCATED_IMAGES = True 你已经在你的 django 应用程序中尽早找到了。

【参考方案1】：

好的，我得到了我自己问题的答案！

正如lepsch所说，只需添加

from PIL import Image, ImageFile ImageFile.LOAD_TRUNCATED_IMAGES = True

尽早在 django 应用程序中使用。我将它添加到生成页面的视图中，它工作正常。