title: Pandas dataframe select value from array
body: <p>I have a pandas data frame that looks like the image below. I would like to select all data frame rows that contain a specific value in routes field (4008182). I have tried something like df['routes'].isin([4008182]) but it does not work. Any suggestions? Thank you<br>
  <a href="https://i.stack.imgur.com/2DQXS.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2DQXS.jpg" alt="enter image description here"></a></p>