1. 下载源码
wget https://www.python.org/ftp/python/3.4.10/Python-3.4.10.tgz
2. 解压源码
tar zxvf Python-3.4.10.tgz
3. 编译和安装
./configure --with-ssl --prefix=/opt/python3 #会有大量日志
make #大量日志
sudo make install # 会将可执行文件放到 /opt/python3目录下
4. 调整yum使用python
1. which python # 查看系统默认python
/usr/bin/python
2. cd /usr/bin ll python* #两个命令
-rwxr-xr-x 2 root root 3592 Aug 18 2016 python
lrwxrwxrwx 1 root root 6 May 25 02:37 python2 -> python
-rwxr-xr-x 2 root root 3592 Aug 18 2016 python2.6
3. sudo cp /usr/bin/yum /usr/bin/yum.bak #备份
4. 将文件头部的#!/usr/bin/python改为#!/usr/bin/python2.6
sudo vim yum #进行修改
5. 将Python2 连接调整到 python2.6
sudo ln -snf python2.6 python2
6. 备份python
sudo mv python python.bak
7. 将python 连接到 /opt/python3/bin/python3
sudo ln -s /opt/python3/bin/python3 python
遇到的问题
1. [admin@74 Python-3.4.10]$ ./configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for --enable-universalsdk... no
checking for --with-universal-archs... no
checking MACHDEP... linux
checking for --without-gcc... no
checking for gcc... no
checking for cc... no
checking for cl.exe...
no configure: error: in `/home/admin/Python-3.4.10':
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details
没有安装gcc
sudo yum install gcc
2. ModuleNotFoundError: No module named '_ctypes'
sudo yum install libffi-devel
./configure --with-ssl --prefix=/opt/python3
make
sudo make install
4. 其他问题，openssl 版本太低时
sudo yum install openssl-devel
cd Python-3.4.10
./configure --with-ssl --prefix=/opt/python3
make
sudo make install
5. 关于ssl模块找不到的问题，详见
https://github.com/libressl-portable/portable/issues/381
libssl并没有完全实现openssl1.1版本的内容，这里安装了openssl1.1.1b版本
