ubuntu16.04升级python3.7.1教程

ubuntu16.04升级python3.7.1教程

  1. 准备

    sudo apt-get install --reinstall zlibc zlib1g zlib1g-dev 
    sudo apt-get install libffi-dev libssl-dev libreadline-dev -y
    
  2. 安装

    使用python官方站点的以下命令下载Python。您也可以下载最新版本代替下面指定的版本

    #下载python3.7.1
    sudo wget https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tgz
    #解压
    sudo tar xzf Python-3.7.1.tgz
    
  3. 进入解压目录

    cd Python-3.7.1/

  4. 4、建立安装的目录

    sudo mkdir -p /usr/local/python3

  5. 编译安装

    #执行这步是后面最好加上 --enable-optimizations 会自动安装pip3及优化配置
    #./configure:配置安装环境
    #--prefix=/usr/local/python3:指向安装路径
    #--enable-optimizations:安装pip3及优化配置
    ./configure --prefix=/usr/local/python3 --enable-optimizations
    make
    sudo make install
    
  6. 删除软连接

        >     #先执行查看版本,如果有则证明软链接已存在,需要先删去以前的再重新建立
        >     #这里表明我已有python3的软链接而没有pip3的软链接所以需要删除python3的软链接重新建立
        > jianjiacheng@J-computer:~/Python-3.7.1$ python3 -V 
        
        > Python 3.5.2
        > jianjiacheng@J-computer:~$ pip3 -V 
        > bash: /usr/lib/command-not-found:/usr/bin/python3: bad interpreter: No such file or directory
        > apt install python3-pip 
        > rm -rf /usr/bin/python3  
        > rm -rf /usr/bin/pip3
    
  7. 建立新的指向python3.7的软链接

    添加python3的软链接

    ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3
    

    添加 pip3 的软链接

    ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3
    
  8. 检测版本

    jianjiacheng@J-computer:~$ python3 -V
    Python 3.7.1

    jianjiacheng@J-computer:~$ pip3 -V
    pip 10.0.1 from /usr/local/python3/lib/python3.7/site-packages/pip (python 3.7)

  9. 复制‘lsb_release.py’模块

    将其复制到设置python3.7的系统模块加载位置,也就是报错处subprocess.py所在的目录

    sudo cp  /usr/lib/python3/dist-packages/lsb_release.py /usr/local/python3/lib/python3.7/
    
  10. 缺少‘lsb_release.py’模块:

[【问题解决】subprocess.CalledProcessError: Command ‘(‘lsb_release‘, ‘-a‘)‘ returned non-zero exit status 1][1]
[1]: https://blog.csdn.net/p1279030826/article/details/111573774

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