Centos7下python2.7升级至3.6

1.下载python3.6:wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgzpython

2.解压:tar -xzf Python-3.6.4.tgzpython2.7

3.安装:cd Python-3.6.4url

    ./configure --prefix=/usr/local/python3.6ip

    makeget

    make installpip

4.备份:mv /usr/bin/python /usr/bin/python2.7.5ftp

5.修改软链接:下载

    ln -fs /usr/local/python3.6/bin/python3.6 /usr/bin/python
    ln -fs /usr/local/python3.6/bin/pip3.6 /usr/bin/pipyum

6.验证:python -V文件

    pip -V

7.修改yum文件:

    vi /usr/bin/yum

    vi /usr/libexec/urlgrabber-ext-down

    第一行改成:#!/usr/bin/python2.7

8.升级:

    python -m pip install --upgrade pip

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