Linux下安装python3.7.9

操作系统与原有python

[pythondemo@localhost ~]$ cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)


[pythondemo@localhost ~]$ python
Python 2.7.5 (default, Aug  4 2017, 00:39:18)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

下载python 3.7.9

curl https://www.python.org/ftp/python/3.7.9/Python-3.7.9.tgz

安装依赖

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make

解压压缩包

tar -zxvf Python-3.7.9.tgz

把解压后的python移到/usr/local

mv Python-3.7.9 /usr/local
# 进入解压后的目录
cd /usr/local/bin/python3.7.9

编译python3.7.9

# 配置
./configure
# 编译
make
# 安装
make install

新建软链接

# 查看原有软链接
ll -d /usr/bin/python
lrwxrwxrwx. 1 root root 7 Aug  4  2020 /usr/bin/python -> python2
# 删除原有的软链接
rm -rf /usr/bin/python
# 新建软链接
ln -s /usr/local/bin/python3.7.9 /usr/bin/python

安装完成

[pythondemo@localhost ~]$ python3
Python 3.7.9 (default, Jun 11 2023, 21:54:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> quit()