title: Python For Loop / List Comprehension copy multiple columns
body: <p>I feel kinda stupid, but I haven't got this for hours now. I have a Pandas DataFrame with two columns. Now, I want to iterate over the column "firstcol" and check a condition (here: length of the string and some more). The result should be copied to a new list/df. </p>
  
  <pre><code>result = [i for i in data["firstcol"] if (len(i)&gt;5 and ...)]
  </code></pre>
  
  <p>The Problem: Now I missed the second column. But I want to copy the full row. How can I do that?</p>
  
  <p>Thank you!</p>