Google search scraper help (Python)

Well, I'm struggling to find and write a Python script that will let me scrape some results from Google
Especially I need the script to search ex: uk travel agents "gmail.com"
And then filter and save all the emails that it can find.
I can do it manually with chrome plugins that will show me all the emails from this search but its a pain in the ass.
If someone can help me develop this or if you have something ready (for free) please reply.