TinyPngAPI
Python script integrating with TinyPng(https://tinypng.com) API to compress image in bulk (also support compressing online image and store locally)
Usage: python run.py src_dir (image source dir) dest_dir (optional) python run.py web_url dest_file_name(optional)
*Note: you need to register on TinyPng(https://tinypng.com/developers/subscription) in order to get the API key, and replace the API key in the script