ipython安装成功后用不了_使用pip安装后无法运行ipython

通过pip安装后尝试运行ipython的原因：$ ipython

-bash: ipython: command not found

我需要在我的路径中添加一个目录吗？《python安装指南》没有提到：

一切似乎都如期安装：

^{pr2}$

我目前使用的是MacOSX10.11上的Python2.7.10版本

编辑：

我已尝试卸载并重新安装，现在遇到以下错误：sudo -H pip install ipython

Collecting ipython

Downloading ipython-4.0.0-py2-none-any.whl (730kB)

100% |████████████████████████████████| 733kB 459kB/s

Requirement already satisfied (use --upgrade to upgrade): traitlets in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): pickleshare in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): simplegeneric>0.8 in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): decorator in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): gnureadline in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): appnope in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): pexpect in /Library/Python/2.7/site-packages (from ipython)

Requirement already satisfied (use --upgrade to upgrade): ipython-genutils in /Library/Python/2.7/site-packages (from traitlets->ipython)

Requirement already satisfied (use --upgrade to upgrade): path.py in /Library/Python/2.7/site-packages (from pickleshare->ipython)

Requirement already satisfied (use --upgrade to upgrade): ptyprocess>=0.5 in /Library/Python/2.7/site-packages (from pexpect->ipython)

Installing collected packages: ipython

Exception:

Traceback (most recent call last):

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/basecommand.py", line 211, in main

status = self.run(options, args)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/commands/install.py", line 311, in run

root=options.root_path,

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/req/req_set.py", line 646, in install

**kwargs

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/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-7.1.2-py2.7.egg/pip/req/req_install.py", line 998, in move_wheel_files

isolated=self.isolated,

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/wheel.py", line 371, in move_wheel_files

clobber(source, dest, False, fixer=fixer, filter=filter)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/wheel.py", line 310, in clobber

ensure_dir(destdir)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/utils/__init__.py", line 71, in ensure_dir

os.makedirs(path)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 150, in makedirs

makedirs(head, mode)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 150, in makedirs

makedirs(head, mode)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs

mkdir(name, mode)

OSError: [Errno 1] Operation not permitted: '/System/Library/Frameworks/Python.framework/Versions/2.7/share'

我想这个错误可能是第一次出现的，因为它仍然认为它已经正确安装了！在

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