I am looking for a free ready-to-use web scraping application. Any recommendations? 

Usage: Monitoring online product prices, vendors, top 20 online market places in Asia and comparing price developments. 

I am a beginner using python, raspberry pi setup.

Looking for the following capabilities and functions:

- Browser interface, search function 

- Input: Search words (product, brand) 

- Output: vendor webpage, product price, and product pictures