$ wget //files.pythonhosted.org/packages/82/0a/146b0f0f1ddf13ab8682aed5c5a42250cddf1082e193ec95b50b03b9f791/ipython-7.3.0.tar.gz

[root@localhost ~]# tar xf ipython-7.3.0.tar.gz
[root@localhost ~]# cd ipython-7.3.0
[root@localhost ipython-7.3.0]# pwd
/root/ipython-7.3.0
[root@localhost ipython-7.3.0]# python3 setup.py install

#前提已安装python3，
#Linux系统安装Python3 见 : //www.cnblogs.com/chengd/p/7078498.html

[root@localhost ipython]# ipython
Traceback (most recent call last):
  File "/usr/local/bin/ipython", line 4, in <module>
    from IPython import start_ipython
  File "/usr/local/lib/python3.7/site-packages/IPython/__init__.py", line 54, in <module>
    from .core.application import Application
  File "/usr/local/lib/python3.7/site-packages/IPython/core/application.py", line 23, in <module>
    from traitlets.config.application import Application, catch_config_error
ModuleNotFoundError: No module named 'traitlets'

#运行ipython是提示缺少'traitlets'模块；
#安装提示一步步通过pip安装缺失模块

[root@localhost ipython]# pip install 'traitlets'
Collecting traitlets
  Downloading //files.pythonhosted.org/packages/93/d6/abcb22de61d78e2fc3959c964628a5771e47e7cc60d53e9342e21ed6cc9a/traitlets-4.3.2-py2.py3-none-any.whl (74kB)
    100% |████████████████████████████████| 81kB 100kB/s 
Requirement already satisfied (use --upgrade to upgrade): enum34; python_version == "2.7" in /usr/lib/python2.7/site-packages (from traitlets)
Requirement already satisfied (use --upgrade to upgrade): six in /usr/lib/python2.7/site-packages (from traitlets)
Collecting ipython-genutils (from traitlets)
  Downloading //files.pythonhosted.org/packages/fa/bc/9bd3b5c2b4774d5f33b2d544f1460be9df7df2fe42f352135381c347c69a/ipython_genutils-0.2.0-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): decorator in /usr/lib/python2.7/site-packages (from traitlets)
Installing collected packages: ipython-genutils, traitlets
Successfully installed ipython-genutils-0.2.0 traitlets-4.3.2
You are using pip version 8.1.2, however version 19.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

升级pip

[root@localhost ipython]# pip install --upgrade pip
Collecting pip
  Downloading //files.pythonhosted.org/packages/d8/f3/413bab4ff08e1fc4828dfc59996d721917df8e8583ea85385d51125dceff/pip-19.0.3-py2.py3-none-any.whl (1.4MB)
    68% |█████████████████████▉          | 921kB 8.5kB/s eta 0:00:51
    100% |████████████████████████████████| 1.4MB 73kB/s 
Installing collected packages: pip
  Found existing installation: pip 8.1.2
    Uninstalling pip-8.1.2:
      Successfully uninstalled pip-8.1.2
Successfully installed pip-19.0.3

pip安装地址：//www.linuxidc.com/Linux/2019-02/157062.htm

[root@localhost pip-9.0.1]# pip install ipython
[root@localhost pip-9.0.1]# ipython
ipython  ipython3  
[root@localhost pip-9.0.1]# ipython3
/usr/local/lib/python3.6/site-packages/IPython/core/history.py:226: UserWarning: IPython History requires SQLite, your history will not be saved
  warn("IPython History requires SQLite, your history will not be saved")
Python 3.6.1 (default, Jun 26 2017, 09:16:04) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.1.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: 
#ipython安装成功

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