IOError:编码器jpeg在OS X 10.10上不可用

Question

我正在尝试安装Python图像库，但收到消息告诉我安装成功

​

    --------------------------------------------------------------------
    PIL 1.1.7 SETUP SUMMARY
    --------------------------------------------------------------------
    version       1.1.7
    platform      darwin 2.6.9 (unknown, Sep  9 2014, 15:05:12)
                  [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)]
    --------------------------------------------------------------------
    --- TKINTER support available
    --- JPEG support available
    --- ZLIB (PNG/ZIP) support available
    --- FREETYPE2 support available
    *** LITTLECMS support not available
    --------------------------------------------------------------------

​

但是当我运行代码时，我得到了一些错误消息，可能告诉我我还没有安装JPEG库

​

/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /Users/tian/PycharmProjects/helloworld/image_test.py
Traceback (most recent call last):
  File "/Users/tian/PycharmProjects/helloworld/image_test.py", line 35, in <module>
    image.save('code.jpg', 'jpeg')
  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 1439, in save
    save_handler(self, fp, filename)
  File "/Library/Python/2.7/site-packages/PIL/JpegImagePlugin.py", line 471, in _save
    ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
  File "/Library/Python/2.7/site-packages/PIL/ImageFile.py", line 495, in _save
    e = Image._getencoder(im.mode, e, a, im.encoderconfig)
  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 401, in _getencoder
    raise IOError("encoder %s not available" % encoder_name)
IOError: encoder jpeg not available

​

当我在Google中搜索这个错误的原因时，大多数的解决方案都是重新安装PIL，但当我安装PIL时，我得到了"JPEG支持可用“的消息，所以它应该不是由JPEG库引起的。那么，我该如何解决这个问题呢？

我的操作系统是OS X Yosemite 10.10

Answer 1

我用Pillow代替PIL来解决这个问题，用"form PIL import Image“代替"import Image”。