(python27) user@username:~$ pip install yaml
Collecting yaml
Could not find a version that satisfies the requirement yaml (from versions: )
No matching distribution found for yaml
#使用如下命令安装yaml
pip install pyyaml
(python27) user@username:~$ pip install yaml
Collecting yaml
Could not find a version that satisfies the requirement yaml (from versions: )
No matching distribution found for yaml
#使用如下命令安装yaml
pip install pyyaml