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CentOS安装python3.6及相应版本的ipython

CentOS安装python3.6及相应版本的ipython

作者: 六月天的安静 | 来源:发表于2018-03-30 16:52 被阅读136次

    默认centos7的python版本是python2.7,并且没有安装ipython

    安装python3.6

    安装依赖

    # yum install xz gcc zlib zlib-devel wget sqlite-devel openssl-devel -y
    

    官网下载源码

    # wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
    

    解压文件

    # tar xf Python-3.6.1.tar.xz
    

    进入目录安装编译

    # cd Python-3.6.1 
    #  ./configure --prefix=/usr/python3.6 
    #  make && make install
    

    让系统默认使用python3

    # cd /usr/bin/
    # mv python python.bak
    # ln -s /usr/python3.6/bin/python3 /usr/bin/python
    

    设置python3相关变量

    # tail -1 /etc/profile
    PATH=$PATH:/usr/python3.6/bin/
    # . /etc/profile
    

    yum使用的是python2,替换python3之后可能导致无法正常工作,因此需要yum继续使用python2

    # head -1 /usr/bin/yum 
    #!/usr/bin/python2
    # head -1 /usr/libexec/urlgrabber-ext-down 
    #! /usr/bin/python2
    

    进入python3

    # python
    Python 3.6.1 (default, Mar 23 2018, 16:29:11) 
    [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>> exit()
    

    安装ipython

    下载ipython安装包

    # wget https://pypi.python.org/packages/79/63/b671fc2bf0051739e87a7478a207bbeb45cfae3c328d38ccdd063d9e0074/ipython-6.1.0.tar.gz    
          #md5=1e15e1ce3f3f722da6935d7ac0e51346
    

    安装ipython

    # tar xf ipython-6.1.0.tar.gz
    # cd ipython-6.1.0
    # python setup.py install
    changing mode of /usr/python3.6/bin/ipython3 to 755
    changing mode of /usr/python3.6/bin/iptest3 to 755
    running install_data
    copying docs/man/ipython.1 -> /usr/python3.6/share/man/man1
    running install_egg_info
    Writing /usr/python3.6/lib/python3.6/site-packages/ipython-6.1.0-py3.6.egg-info
    

    进入ipython,报错

    # ipython
    Traceback (most recent call last):
    File "/usr/python3.6/bin/ipython", line 4, in <module>
    from IPython import start_ipython
    File "/usr/python3.6/lib/python3.6/site-packages/IPython/__init__.py", line 54, in <module>
    from .core.application import Application
    File "/usr/python3.6/lib/python3.6/site-packages/IPython/core/application.py", line 23, in <module>
    from traitlets.config.application import Application, catch_config_error
    ModuleNotFoundError: No module named 'traitlets'
    

    根据报错提示安装缺失的相关模块

    # pip3 install traitlets 
    # pip3 install pygments
    # pip3 install pexpect
    # pip3 install pickleshare
    # pip3 install prompt_toolkit
    # pip3 install simplegeneric
    

    再次尝试进入ipython

    #ipython
    Python 3.6.1 (default, Dec 23 2017, 19:28:41) 
    Type 'copyright', 'credits' or 'license' for more information
    IPython 6.1.0 -- An enhanced Interactive Python. Type '?' for help.
    
    In [1]:
    

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