Ubuntu install a specific python version. Ubuntu下安装特定版本的python

pyenv.sh

# 依赖工具
# 参考：https://github.com/pyenv/pyenv/wiki/common-build-problems
echo "下载依赖工具"
sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
xz-utils tk-dev libffi-dev liblzma-dev python-openssl git

# ↑和平台有关
# ↓与平台无关
echo "安装pyenv"

# 下载
git clone https://github.com/pyenv/pyenv.git ~/.pyenv

# 环境变量
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

#激活
source ~/.bash_profile

#安装版本
pyenv install 3.7.4

# 基本信息
echo "根目录为:$(pyenv root)"
echo "查看已安装版本"
pyenv versions

echo "切换版本命令"
echo "pyenv global 3.7.4 "