2.datax条件python3.6安装

一.安装python3.6.1 1.安装依赖环境（必须安装否则会出现python3编译器中不能使用退格键和方向键） yum install readline-devel gcc make patch gdbm-devel openssl-devel sqlite-devel readline-devel zlib-devel bzip2-devel   2.下载安装并解压 mkdir /home/python3 cd /home/python3   wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz tar zvxf Python-3.6.1.tgz   3.编译并安装 cd Python-3.6.1 ##进入安装包 mkdir /usr/local/python3 ##创建安装目录 ./configure --prefix=/usr/local/python3 ##编译 make && make install ##安装   4.创建软连接 mv /usr/bin/python /usr/bin/python_bak ##备份原软连接 ln -s /usr/local/python3/bin/python3 /usr/bin/python ##chua创建新的软链接使程序运行时不显示版本号   5.测试是否正常 [root@node1 Python-3.6.1]# python Python 3.6.1 (default, Apr 21 2018, 16:42:07) [GCC 4.4.7 20120313 (Red Hat 4.4.7-18)] on linux Type "help", "copyright", "credits" or "license" for more information.   6.将/usr/local/python3/bin加入到环境变量 [root@node1 Python-3.6.1]# vim ~/.bash_profile PATH=$PATH:$HOME/bin:/usr/local/python3/bin [root@node1 Python-3.6.1]# source ~/.bash_profile ##使环境变量生效 [root@node1 Python-3.6.1]# python3 -V ##测试python3正常 Python 3.6.1 [root@node1 Python-3.6.1]# pip3 -V ##测试pip3正常 pip 9.0.1 from /usr/local/python3/lib/python3.6/site-packages (python 3.6)   7.修改yum指向python旧版本 [root@node1 pip-8.0.2]# vi /usr/bin/yum #!/usr/bin/python2.6   二.安装pip及setuptools 1.安装pip前需要前置安装setuptools mkdir /home/setuptools cd /home/setuptools   [root@node1 ~]# wget --no-check-certificate https://pypi.python.org/packages/source/s/setuptools/setuptools-19.6.tar.gz#md5=c607dd118eae682c44ed146367a17e26 [root@node1 ~]# tar zxvf setuptools-19.6.tar.gz [root@node1 ~]# cd setuptools-19.6 [root@node1 ~]# python3 setup.py build [root@node1 ~]# python3 setup.py install   2.安装pip [root@node1 ~]# wget --no-check-certificate https://pypi.python.org/packages/source/p/pip/pip-8.0.2.tar.gz#md5=3a73c4188f8dbad6a1e6f6d44d117eeb [root@node1 ~]# tar zvxf pip-8.0.2.tar.gz [root@node1 ~]# cd pip-8.0.2 [root@node1 pip-8.0.2]# python3 setup.py build [root@node1 pip-8.0.2]# python3 setup.py install