instal python3.7 on centos 7.6

gistfile1.txt

ref: 
https://github.com/pyenv/pyenv-installer
https://github.com/pyenv/pyenv#getting-pyenv

1. install pyenv

```
curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
```

2. init

zsh
```
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.zshrc
echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.zshrc
echo 'eval "$(pyenv init -)"' >> ~/.zshrc
```

bash 
```
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
```


3. install python3.7

```
pyenv install 3.7.15
```

4. set python 3.7.15 as python
```
pyenv global 3.7.15
```

5. restart console