title: Create series from one row of dataframe
body: <p>I have the following dataframe:</p>
  
  <pre><code>Symbol, col1, col2, col3
  abc,    435,  5465, 675
  xyz,    565,  45,   567
  mno,    675,  456,  789
  </code></pre>
  
  <p>I would like to select a specific row based on Symbol, with the result being a pandas series. For example selecting xyz should give me the following series:</p>
  
  <pre><code>Symbol, col1, col2, col3
  xyz,    565,  45,   567
  </code></pre>
  
  <p>I have put logic rules in place such that Symbol should always be unique. But purely out of interest, what would happen if Symbol were not unique (would there hypothetically be a way to handle that?).</p>