title: How to scrape all url inside a columns in a dataframe
body: <p>Sorry for the question, but I'm new to python and for me this problem is very difficult.</p>
  <p>I'm working on this csv (<a href="https://www.kaggle.com/jtrofe/beer-recipes" rel="nofollow noreferrer">https://www.kaggle.com/jtrofe/beer-recipes</a>) and I need to do scraping.</p>
  <p>The problem is that in the column (URL) of data frame there is a part of a link and the main part (<a href="https://www.brewersfriend.com" rel="nofollow noreferrer">https://www.brewersfriend.com</a>) is not declared. I want to scrape the rating of various beers from every url.</p>
  <p>For me this is very complicated.</p>
  <p>I hope that someone can help me! Thanks a lot.</p>