1.HTTP error
gedit ~/.condarc
输入
channels:
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
- defaults
show_channel_urls: true
2.多python
conda create --name former python=2.7
source activate former
source deactivate