如何安裝 scikit-image？

Question

它的scikit-image Download說：

pip install -U scikit-image

或者

easy_install -U scikit-image

但無論標志 U 是什么，都失敗了，如下所示：

Georgioss-MacBook-Pro:Downloads gsamaras$ sudo pip install scikit-image
The directory '/Users/gsamaras/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/gsamaras/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 scikit-image
  Downloading scikit_image-0.12.3-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (22.2MB)
    100% |████████████████████████████████| 22.2MB 53kB/s 
Requirement already satisfied: dask[array]>=0.5.0 in /Library/Python/2.7/site-packages (from scikit-image)
Collecting six>=1.7.3 (from scikit-image)
  Downloading six-1.10.0-py2.py3-none-any.whl
Collecting networkx>=1.8 (from scikit-image)
  Downloading networkx-1.11-py2.py3-none-any.whl (1.3MB)
    100% |████████████████████████████████| 1.3MB 133kB/s 
Requirement already satisfied: pillow>=2.1.0 in /Library/Python/2.7/site-packages (from scikit-image)
Requirement already satisfied: numpy; extra == "array" in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from dask[array]>=0.5.0->scikit-image)
Requirement already satisfied: toolz>=0.7.2; extra == "array" in /Library/Python/2.7/site-packages (from dask[array]>=0.5.0->scikit-image)
Collecting decorator>=3.4.0 (from networkx>=1.8->scikit-image)
  Downloading decorator-4.0.10-py2.py3-none-any.whl
Installing collected packages: six, decorator, networkx, scikit-image
  Found existing installation: six 1.4.1
    DEPRECATION: Uninstalling a distutils installed project (six) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
    Uninstalling six-1.4.1:
Exception:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py", line 778, in install
    requirement.uninstall(auto_confirm=True)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 754, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 302, in move
    copy2(src, real_dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 131, in copy2
    copystat(src, dst)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 103, in copystat
    os.chflags(dst, st.st_flags)
OSError: [Errno 1] Operation not permitted: '/tmp/pip-qlMJKP-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'
Georgioss-MacBook-Pro:Downloads gsamaras$ 

和：

Georgioss-MacBook-Pro:Downloads gsamaras$ sudo easy_install scikit-image
Searching for scikit-image
Reading https://pypi.python.org/simple/scikit-image/
Best match: scikit-image 0.12.3
Downloading https://pypi.python.org/packages/86/d0/b0192dc9a544da90f2d9150bcd84b981c6873e42a1f752b6affb89180ad8/scikit-image-0.12.3.tar.gz#md5=04ea833383e0b6ad5f65da21292c25e1
Processing scikit-image-0.12.3.tar.gz
Writing /tmp/easy_install-X6Pjoh/scikit-image-0.12.3/setup.cfg
Running scikit-image-0.12.3/setup.py -q bdist_egg --dist-dir /tmp/easy_install-X6Pjoh/scikit-image-0.12.3/egg-dist-tmp-lHJxkL
Killed: 9

請注意brew也失敗了，它找不到它。

我有 Python 2.7.10、Matplotlib 1.3.1、PIL 3.4.2 和 Scipy '0.18.1'。 該怎么辦？

Answer 1

在系統范圍的 Python 上安裝庫通常是一個壞主意。 改為為每個項目使用 virtualenv。

首先在 Mac 上全局安裝virtualenv ：

$ [sudo] pip install virtualenv

然后使用virtualenv命令創建 Python 可執行文件的新（副本）：

$ cd your/prefred/folder
$ virtualenv your_project

激活virtualenv ：

$ source your_project/bin/activate

您的 virtualenv 已創建並激活（提示已更改以顯示激活）。 您可以在其中安裝任何東西：

$ pip install -U scikit-image

Answer 2

pip install scikit-image

pip install --upgrade scikit-image

調用使用skimage

Answer 3

（輸入此作為答案以包含錯誤消息）。 使用@Krackle 的第一個答案，我得到了以下（令人困惑的）輸出，我在此處添加以幫助其他人：

pip install skimage
Collecting skimage
  Using cached skimage-0.0.tar.gz (757 bytes)
    ERROR: Command errored out with exit status 1:
     command: /opt/anaconda3/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/ft/7j605bsd10l0ftqygyxjjflh0000gq/T/pip-install-xtxr1328/skimage/setup.py'"'"'; __file__='"'"'/private/var/folders/ft/7j605bsd10l0ftqygyxjjflh0000gq/T/pip-install-xtxr1328/skimage/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /private/var/folders/ft/7j605bsd10l0ftqygyxjjflh0000gq/T/pip-pip-egg-info-q8dwl8rl
         cwd: /private/var/folders/ft/7j605bsd10l0ftqygyxjjflh0000gq/T/pip-install-xtxr1328/skimage/
    Complete output (3 lines):
    
    *** Please install the `scikit-image` package (instead of `skimage`) ***
    
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

然后我使用了@Krackle 的第二個命令（到目前為止）已經解決了這個問題。