Ubuntu - Pyenv1 [pyenv 安装]

Ubuntu19.10 environment

转载：https://github.com/pyenv/pyenv#basic-github-checkout

1. Check out pyenv where you want it installed.A good place to choose is $HOME/.pyenv (but you can install it somewhere else).

• 检查要安装的pyenv， $HOME/.pyenv是一个不错的选择(使用git命令之前需要先安装git)

sudo apt install git
git clone https://github.com/pyenv/pyenv.git ~/.pyenv

2. Define environment variable PYENV_ROOT to point to the path where pyenv repo is cloned and add $PYENV_ROOT/bin to your $PATH for access to the pyenv command-line utility.

• 定义环境变量"PYENV_ROOT"指向克隆pyenv repo的路径，然后将" $PYENV_ROOT / bin "添加到$PATH 中以访问pyenv命令。

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc

3. Add Pyenv init to your shell to enable shims and autocompletion .Please make sure eval "$(pyenv init -)" is placed toward the end of the shell configuration file since it manipulates PATH during the initialization.

• 在shell中添加Pyenv init以启用填充和自动补全功能。请确保将eval "$(pyenv init-)"放在shell配置文件的末尾，因为它会在初始化过程中操纵* PATH *。

echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n  eval "$(pyenv init -)"\nfi' >> ~/.bashrc

4. Restart your shell so the path change take effect. You can now begin using pyenv.

• 重新shell，以使路径更改生效。 您现在可以开始使用pyenv。

exec "$SHELL"

5. Install Python build dependencies before attempting to install a new Python version.

• 在尝试安装新的Python版本之前，请先安装Python构建依赖项。

sudo apt-get update; sudo apt-get install --no-install-recommends make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

6. Install Python versions into $(pyenv root)/versions.

• 将Python版本安装到$（pyenv root）/ versions中。

pyenv install 2.7.8