2020-10-24python2.7.X 升级至Python36.X 阳光穿透心脏的1/2处 2022-12-18 01:59 175阅读 0赞 python2.7.X 升级至Python36.X 安装Python3 项目是在py3环境下进行编码的，正好Centos默认的py版本是2，我们还需要安装py3才能让程序run起来，在此之前，需要安装开发工具包，因为要编译安装Python 1 \[root@CentOS ~\]\# yum -y group install "Development Tools" 安装Python的依赖包，不安装依赖可能安装完成后没有pip3 软件。 \[root@CentOS ~\]\# yum -y install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel vim 下载目前最新的Python3.5.x 1 \[root@CentOS ~\]\# wget [https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz][https_www.python.org_ftp_python_3.5.3_Python-3.5.3.tgz] 可能你需要通过yum -y install wget 解压编译安装 \[root@CentOS ~\]\# tar xf Python-3.5.3.tgz \[root@CentOS ~\]\# cd Python-3.5.3 \[root@CentOS Python-3.5.3\]\# ./configure --prefix=/usr/local/python3.5 \[root@CentOS Python-3.5.3\]\# make \[root@CentOS Python-3.5.3\]\# make altinstall 为pip3和python3创建链接 \[root@CentOS Python-3.5.3\]\# ln -fs /usr/local/python3.5/bin/python3 /usr/local/bin/ \[root@CentOS Python-3.5.3\]\# ln -fs /usr/local/python3.5/bin/pip3 /usr/local/bin/ \[root@CentOS Python-3.5.3\]\# mv /usr/bin/python/usr/bin/python\_old \[root@CentOS Python-3.5.3\]\# ln -fs /usr/local/python3.5/bin/python3.5 /usr/bin/python \[root@CentOS Python-3.5.3\]\# ln -fs /usr/local/python3.5/bin/pip3.5 /usr/bin/pip 验证安装 \[root@CentOS Python-3.5.3\]\# pip -V pip 9.0.1 from /usr/local/python3.5/lib/python3.5/site-packages (python 3.5) \[root@CentOS Python-3.5.3\]\# python -V Python 3.5.3 修改yum文件，否则yum将无法下载 vim /usr/bin/yum 将 \#!/usr/bin/python 修改为 \#!/usr/bin/python2.7 [https_www.python.org_ftp_python_3.5.3_Python-3.5.3.tgz]: https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz
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