在Mac OS El Capitan下用pip安裝Scrapy 失敗

環境：同時安裝了Python 2.7，Python 3.4
使用 安裝命令 pip install Scrapy
下載正常
安裝時出錯：
Installing collected packages: Scrapy, six, queuelib, lxml, w3lib, cssselect
Cleaning up...
Exception:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/basecommand.py", line 122, in main
status = self.run(options, args)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/commands/install.py", line 283, in run
requirement_set.install(install_options, global_options, root=options.root_path)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 1435, in install
requirement.install(install_options, global_options, *args, **kwargs)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 671, in install
self.move_wheel_files(self.source_dir, root=root)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 901, in move_wheel_files
pycompile=self.pycompile,
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 215, in move_wheel_files
clobber(source, lib_dir, True)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 205, in clobber
os.makedirs(destdir)
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/scrapy'

Reason：使用管理員權限

solution:

sudo pip install Scrapy

but....

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 640, in install

    requirement.uninstall(auto_confirm=True)

  File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 716, in uninstall

    paths_to_remove.remove(auto_confirm)

  File "/Library/Python/2.7/site-packages/pip/req/req_uninstall.py", line 125, in remove

    renames(path, new_path)

  File "/Library/Python/2.7/site-packages/pip/utils/__init__.py", line 315, 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-MS2Tu1-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'

Reason:

Some people are facing problems for python installation on El Capitan.

solution:

brew reinstall python

Problem solved!