今天在网上找了很久，终于找到1个snappy压缩命令行，记录下来：

1.wget https://bootstrap.pypa.io/get-pip.py

2.python ./get-pip.py

3.yum install gcc-c++

4.pip install python-snappy

用法：

python -m snappy -c uncompressed_file compressed_file.snappy

python -m snappy -d compressed_file.snappy uncompressed_file

参考：

https://github.com/andrix/python-snappy