tradetracker

I want to make a trade tracker for the stock market that will scrape data on the companies in my portfolio and tell me when are good times to buy. I think I can do this by using some sort of stastical anaylsis, but essentially I would integrate python to scrape data from the web that would tell me the appropriate time to purchase a certian company. I do not neccessarily know what industry data would be valueable for something like this but I want to try and use this.s