Question

我正在尝试从以下位置运行示例heatmap.py： http://jjguy.com/heatmap/

#image.py
import heatmap
import random

if __name__ == "__main__":    
    pts = []
    for x in range(400):
        pts.append((random.random(), random.random() ))

    print "Processing %d points..." % len(pts)

    hm = heatmap.Heatmap()
    img = hm.heatmap(pts)
    img.save("classic.png")

我收到此错误：

Processing 400 points...
Traceback (most recent call last):
  File "/home/ec2usr/workspace/image/image.py", line 14, in <module>
    img.save("classic.png")
  File "/usr/local/lib/python2.7/dist-packages/PIL/Image.py", line 1437, in save
    save_handler(self, fp, filename)
  File "/usr/local/lib/python2.7/dist-packages/PIL/PngImagePlugin.py", line 572, in _save
    ImageFile._save(im, _idat(fp, chunk), [("zip", (0,0)+im.size, 0, rawmode)])
  File "/usr/local/lib/python2.7/dist-packages/PIL/ImageFile.py", line 481, in _save
    e = Image._getencoder(im.mode, e, a, im.encoderconfig)
  File "/usr/local/lib/python2.7/dist-packages/PIL/Image.py", line 399, in _getencoder
    raise IOError("encoder %s not available" % encoder_name)
IOError: encoder zip not available

使用Python 2.7在Ubuntu 12（64位）系统上运行Eclipse。

我在/ usr / lib和/ usr / lib / x86_64-linux-gnu /找到了libz.so就好了。我已经尝试过这些解决方案而没有结果：

PIL says it has "support available" but still gives IOError when saving files

About the PIL Error -- IOError: decoder zip not available

IOError: "decoder zip not available" using matplotlib PNG in ReportLab on Linux, works on Windows

http://www.foxhop.net/ubuntu-python-easy_install-pil-does-not-install-zlib-support

我已经把头发拉了几天，非常感谢任何人的帮助！

从python-imaging安装日志：

ubuntu@ip-10-241-17-21:/usr/lib$ sudo apt-get install python-imaging
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  account-plugin-identica account-plugin-twitter gir1.2-messagingmenu-1.0
  hplip-data libgtkspell-3-0 libqt4-designer libqt4-help libqt4-scripttools
  libqt4-svg libqt4-test libqtassistantclient4 libsane-hpaio
  linux-headers-3.5.0-21 linux-headers-3.5.0-21-generic python-debtagshw
  python-lxml python-pexpect python-piston-mini-client python-qt4
  python-renderpm python-reportlab python-reportlab-accel python-sip
  software-center-aptdaemon-plugins ubuntu-extras-keyring
Use 'apt-get autoremove' to remove them.
Suggested packages:
  python-imaging-doc python-imaging-dbg
The following NEW packages will be installed:
  python-imaging
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/294 kB of archives.
After this operation, 996 kB of additional disk space will be used.
Selecting previously unselected package python-imaging.
(Reading database ... 189302 files and directories currently installed.)
Unpacking python-imaging (from .../python-imaging_1.1.7-4build1_amd64.deb) ...
Setting up python-imaging (1.1.7-4build1) ...
ubuntu@ip-10-241-17-21:/usr/lib$

从安装日志（来自Imaging的python install setup.py）：

PIL 1.1.7 SETUP SUMMARY
--------------------------------------------------------------------
version       1.1.7
platform      linux2 2.7.3 (default, Sep 26 2012, 21:51:14)
              [GCC 4.7.2]
--------------------------------------------------------------------
--- TKINTER support available
*** JPEG support not available
--- ZLIB (PNG/ZIP) support available
*** FREETYPE2 support not available
*** LITTLECMS support not available

selftest.py：

--------------------------------------------------------------------
PIL 1.1.7 TEST SUMMARY
--------------------------------------------------------------------
Python modules loaded from ./PIL
Binary modules loaded from /usr/local/lib/python2.7/dist-packages
--------------------------------------------------------------------
*** PIL CORE support not installed
*** TKINTER support not installed
--- JPEG support ok
--- ZLIB (PNG/ZIP) support ok
*** FREETYPE2 support not installed
*** LITTLECMS support not installed
--------------------------------------------------------------------

Answer 1

我刚刚遇到了类似的问题，这是因为PIL（通过python pip安装程序安装）和通过apt-get安装的python-imaging软件包。当我从pip中删除额外的版本时，我就解决了它。

如果您从源代码安装PIL或使用pip，那么您可能会遇到同样的问题。

当我构建PIL时，我还发现我必须将库链接到/ usr / lib。这可能会解决上面日志中不受支持的消息。

sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib

Answer 2

我记得在Kris在64位系统上安装PIL时所达到的完全相同的解决方案。

但是现在我建议使用Pillow（pip安装枕头）而不是PIL。 Pillow只是PIL的一个分支，它的发布频率更高，而且你遇到的问题更少。

如果您使用的是Ubuntu，我认为您需要在安装PIL / Pillow 之前安装zlib1g-dev和libjpeg-dev ，以便获得对内置jpeg / png的支持。

Answer 3

即使我的PIL是最新的，我在Ubuntu 12.04上解决了这个问题：

pip uninstall PIL
pip install PIL

Answer 4

这对我来说非常有用：

apt-get install libjpeg62 libjpeg62-dev zlib1g-dev libfreetype6 libfreetype6-dev

在x86_64中：

ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib

在i386中：

ln -s /usr/lib/i386-linux-gnu/libz.so /usr/lib/
ln -s /usr/lib/i386-linux-gnu/libfreetype.so.6 /usr/lib/
ln -s /usr/lib/i386-linux-gnu/libjpeg.so /usr/lib/


pip install -U PIL --allow-external PIL --allow-unverified PIL
pip install -I pillow

Answer 5

即使你用

进行测试

来自PIL导入图片的

没问题，但保存/解码方法仍然存在错误。

你可以尝试我的步骤:(根据我的情况，使用ubuntu 13.10的openerp 7）

删除python图片
找到你的libz
重新安装PIL

检查http://febru.soluvas.com/2014/03/solved-openerp-7-ioerror-decoder-zip.html

“IOError：解码器zip不可用”：Ubuntu Python PIL

5 个答案: