title: How to find string as a part of key value in list of dict?
body: <p>In list of dictionaries I would like to find key value containg string.</p>
  
  <pre><code>markets = [
      {'symbol': 'BTC/AUD', 'baseId': 'bitcoin'},
      {'symbol': 'USD/AUD', 'baseId': 'dollar'},
      {'symbol': 'EUR/AUD', 'baseId': 'euro'},
      {'symbol': 'ETH/BTC', 'baseId': 'eth'},
  ]
  
  s = 'BTC'
  </code></pre>
  
  <p>I would like to find in symbol values dicts containing a string.
  For example:
  Searching for s in markets symbols should return folowing list of dicts:</p>
  
  <pre><code>found = [
      {'symbol': 'BTC/AUD', 'baseId': 'bitcoin'},
      {'symbol': 'ETH/BTC', 'baseId': 'eth'},
  ]
  </code></pre>
  
  <p>Any help you can give would be greatly appreciated.</p>