一文搞定linux环境中python多版本问题

centos python环境管理

install pip

• yum install -y python-pip

install pyenv and pyenv-virtualenv

$ git clone https://github.com/pyenv/pyenv.git ~/.pyenv
$ echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
$ echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
$ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n  eval "$(pyenv init -)"\nfi' >> ~/.bash_profile
$ source ~/.bash_profile

$ v=3.6.7;wget https://npm.taobao.org/mirrors/python/$v/Python-$v.tar.xz -P ~/.pyenv/cache/;pyenv install $v

$ git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv

$ echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bash_profile

$ source ~/.bash_profile

create env

• pyenv virtualenv 3.6.7 py3.6.7

active env

• pyenv activate py3.6.7

deactive env

• source deactivate

其他

• 如果github访问慢，可以将github导入到gitee中再拉取
• checking for gcc… no：yum install -y gcc