optparse is deprecated

## Issue

optparse is deprecated in both python 2 and 3

![image](https://user-images.githubusercontent.com/16578570/64350309-bfe7f680-cff8-11e9-8df4-35fdf480e4c5.png)

![image](https://user-images.githubusercontent.com/16578570/64350349-cc6c4f00-cff8-11e9-96ff-960dcae42c26.png)

## Idea

Replace it with argparse for stdlib only requirement only.