1、下载python3
wget https://www.Python.org/ftp/python/3.5.0/Python-3.5.0.tgz
注:如果在Linux中下载较慢,可以在Windows操作系统中去Python官网下载:https://www.python.org/downloads/release/python-350/
注意要下载Gzipped source tarball版本的,然后使用WinSCP将下载好的文件Python-3.5.0.tgz拖拽到linux中,后续步骤还是不变的。
2、解压
tar zxvf Python-3.5.0.tgz
3、进入Python-3.5.0文件夹
cd Python-3.5.0
4、配置安装位置
./configure --prefix=/usr/local/python3.5
注:如果没有安装C语言编译器会提示错误。如果出现错误,在联网的情况下使用 yum install gcc 命令安装gcc编译器
5、编译
make
6、安装
make install
7、下载并安装setuptools 18.5
wget https://bootstrap.pypa.io/ez_setup.py -O - | python
注:如果提示错误 --no-check-certificate
在wget后加上 --no-check-certificate :wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py -O - | python
8、备份原有python命令执行文件
mv /usr/bin/python /usr/bin/pythonbak
9、创建新python软连接
ln -s /usr/local/python3.5/bin/python3.5 /usr/bin/python
10、查看python版本
python
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- [root@localhost Python-3.5.0]# python
- Python 3.5.0 (default, Oct 7 2016, 04:34:35)
- [GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux
- Type "help", "copyright", "credits" or "license" for more information.
11、修改yum配置文件 vim /usr/bin/yum
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- #!/usr/bin/python python修改为 python2.6
- import sys
- try:
- import yum
- except ImportError:
- print >> sys.stderr, """
- There was a problem importing one of the Python modules
- required to run yum. The error leading to this problem was:
- %s
- Please install a package which provides this module, or
- verify that the module is installed correctly.
- It's possible that the above module doesn't match the
- current version of Python, which is:
- %s
- If you cannot solve this problem yourself, please go to
- the yum faq at: