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cd /usr/local/src
2.安装依赖包: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
3.在/usr/local/src目录下wget https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tgz
4.在/usr/local/python3目录下tar -xvf Python-3.7.3.tgz
cd Python-3.7.3
./configure --prefix=/usr/local/python3
make && make install
关于在centos下安装python3.7.0以上版本时报错ModuleNotFoundError: No module named '_ctypes'的解决办法yum install libffi-devel -y
5.切换到/usr/bin/目录下mv python python.bak
mv pip pip.bakln -s /usr/local/python3/bin/python3 /usr/bin/pythonln -s /usr/local/python3/bin/pip3 /usr/bin/pip
6.防止以后用yum源安装软件时,报错
vi /usr/bin/yum
输入i,把文件开头第一行的
#!/usr/bin/python改成#!/usr/bin/python2.7
vi /usr/libexec/urlgrabber-ext-down
输入i,把文件开头第一行的
#!/usr/bin/python改成#!/usr/bin/python2.7
7.验证
输入python,进入python3.6.2
输入python2,进入python2.7
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