将python3设为默认python cd /usr/bin/ mv python python.bak ln -s /usr/local/python3/bin/python3 /usr/bin/python vim /usr/bin/yum 第一行后面加2.7 yum -y install vim 测试 wget https://pypi.python.org/packages/79/63/b671fc2bf0051739e87a7478a207bbeb45cfae3c328d38ccdd063d9e0074/ipython-6.1.0.tar.gz#md5=1e15e1ce3f3f722da6935d7ac0e51346 tar xf ipython-6.1.0.tar.gz cd ipython-6.1.0 python setup.py install alias ipython=’python -m IPython’ pip3 install traitlets pip3 install pygments pexpect pickleshare prompt_toolkit simplegeneric
