Linux 安装Python3.7
系统为Centos7.8,默认已经安装了Python2.7.5。
Python3和Python2可以共存,安装Python3不要卸载Python2,因为yum依赖于Python2。
刚开始不清楚,按照网上教程删除了Python2和yum。
1、删除现有Python
rpm -qa|grep python|xargs rpm -ev --allmatches --nodepswhereis python |xargs rm -frv
whereis python
2、删除现有的yum
rpm -qa|grep yum|xargs rpm -ev --allmatches --nodepswhereis yum |xargs rm -frv
结果发现后面安装Python3需要yum,于是只能重装Python2和yum
1、查看本机CentOS版本
cat /etc/redhat-release
结果:CentOS Linux release 7.8.2003 (Core)
2、创建python和yum两个文件夹
mkdir /usr/local/src/pythonmkdir /usr/local/src/yum
3、根据上面版本7.8.2003
访问:https://vault.centos.org/7.8.2003/os/x86_64/Packages/
下载下面文件,放到/usr/local/src/python:
dbus-python-devel-1.1.1-9.el7.x86_64.rpmpython-2.7.5-88.el7.x86_64.rpm
python-iniparse-0.4-9.el7.noarch.rpm
python-libs-2.7.5-88.el7.x86_64.rpm
python-pycurl-7.19.0-19.el7.x86_64.rpm
python-urlgrabber-3.10-10.el7.noarch.rpm
rpm-python-4.11.3-43.el7.x86_64.rpm
下载下面文件,放到/usr/local/src/yum
yum-3.4.3-167.el7.centos.noarch.rpmyum-metadata-parser-1.1.4-10.el7.x86_64.rpm
yum-plugin-fastestmirror-1.1.31-53.el7.noarch.rpm
4、安装python
cd /usr/local/src/pythonrpm -ivh python-* rpm-python-*
如果出现安装包依赖问题,执行
rpm -ivh python-* rpm-python-* --nodeps --force
5、安装yum
cd /usr/local/src/yumrpm -ivh yum-*
安装Python3.7
1.安装编译工具和依赖环境等
yum -y groupinstall "Development tools"yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
yum install libffi-devel -y
2.下载Python3安装包、解压
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xztar -zxvf Python-3.7.0.tar.xz
3.编译安装
mkdir /usr/local/python3cd Python-3.7.0
./configure --prefix=/usr/local/python3
make && make install
4.建立软连接
ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3
5.验证是否成功
python3 -Vpip3 -V
以上是 Linux 安装Python3.7 的全部内容, 来源链接: utcz.com/z/388940.html