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1. 安装使用
pip install pil
结果报如下错误
Collecting PIL Could not find a version that satisfies the requirement PIL (from versions: ) Some externally hosted files were ignored as access to them may be unreliable (use --allow-external PIL to allow). No matching distribution found for PIL
2.
This is due to changes in the new version of Pip. Run pip --version and I‘m willing to bet you are running 1.5. See the changelog here. This new default behavior enhances security. In PIL‘s case, the file you are installing actually comes from effbot.org (thus --allow-external) and PyPi doesn‘t have a checksum to guarantee validity (thus --allow-unverified).
Also, you might consider using the Pillow replacement to PIL.
pip install PIL --allow-external PIL --allow-unverified PIL
报如下错误 ：
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/tk.h:78:11: fatal error: ‘X11/Xlib.h‘ file not found # include <X11/Xlib.h> ^ 1 error generated. error: command ‘cc‘ failed with exit status 1 ---------------------------------------- Failed building wheel for PIL Failed to build PIL
3.
sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.pl atform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11 / usr/local/include/X11
再次执行：
pip install PIL --allow-external PIL --allow-unverified PIL
又报错误 ：
100% |████████████████████████████████| 507kB 97kB/s Building wheels for collected packages: PIL Running setup.py bdist_wheel for PIL Stored in directory: /Users/zhangxin/Library/Caches/pip/wheels/ba/31/4a/9a5596f0640c9099a4302a71b56b7581e16e0d0b5a8f30ce3e Successfully built PIL Installing collected packages: PIL Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 211, in main status = self.run(options, args) File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 311, in run root=options.root_path, File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 646, in install **kwargs File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 803, in install self.move_wheel_files(self.source_dir, root=root) File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 998, in move_wheel_files isolated=self.isolated, File "/Library/Python/2.7/site-packages/pip/wheel.py", line 339, in move_wheel_files clobber(source, lib_dir, True) File "/Library/Python/2.7/site-packages/pip/wheel.py", line 317, in clobber shutil.copyfile(srcfile, destfile) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 83, in copyfile with open(dst, ‘wb‘) as fdst: IOError: [Errno 13] Permission denied: ‘/Library/Python/2.7/site-packages/PIL.pth‘
这次是忘了加sudo，加上就OK了。
localhost:newlabel zhangxin$ sudo pip install PIL --allow-external PIL --allow-unverified PIL Password: The directory ‘/Users/zhangxin/Library/Caches/pip/http‘ or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo‘s -H flag. The directory ‘/Users/zhangxin/Library/Caches/pip‘ or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo‘s -H flag. Collecting PIL /Library/Python/2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning. InsecurePlatformWarning PIL is potentially insecure and unverifiable. Installing collected packages: PIL Successfully installed PIL-1.1.7
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原文地址：http://www.cnblogs.com/sdlypyzq/p/4795426.html
