python - 无法在 mac 上安装 ipython

Question

我正在使用 Mac El Capitan，我需要安装 iPython 并且必须使用 iPython 笔记本

我用

$ pip install ipython

安装 ipython，但它返回给我

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

abhi ~ $ ipython
-bash: ipython: command not found

知道我做错了什么，或者我现在应该做什么？

我在空闲时尝试了这个

>>> try:
    import ipython
    print "imported"
except :
    print "not installed"

it says not installed.

Answer 1

尝试这个命令:

python -m IPython