我想安装scikit-image来做项目。我用brew安装了python 2.7。我还专门为mac os安装了ignore-six库
sudo pip install virtualenvwrapper --upgrade --ignore-installed six
然后我用pip安装它：
pip install scikit-image
或
sudo pip install scikit-image
它显示如下错误：
Installing collected packages: PyWavelets, scipy, scikit-image, singledispatch, certifi, backports-abc, tornado, nose
Exception:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 342, in run
prefix=options.prefix_path,
File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 784, in install
**kwargs
File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "/Library/Python/2.7/site-packages/pip/wheel.py", line 345, in move_wheel_files
clobber(source, lib_dir, True)
File "/Library/Python/2.7/site-packages/pip/wheel.py", line 316, in clobber
ensure_dir(destdir)
File "/Library/Python/2.7/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
os.makedirs(path)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/PyWavelets-0.5.2.dist-info'
更新
我用virtualenv解决了这个问题。这是solution
在Mac上全局安装virtualenv：
$ [sudo] pip install virtualenv
Then use virtualenv command to create a new (a copy) of Python executable:
$ cd your/prefred/folder
$ virtualenv your_project
Activate the virtualenv:
$ source your_project/bin/activate
Your virtualenv is created and activated (the prompt is changed to show the
activation). You can install anything in it:
$ pip install -U scikit-image