title: How to check a string for specific characters?
body: <p>How can I check if a string has several specific characters in it using Python 2?</p>
  
  <p>For example, given the following string:</p>
  
  <blockquote>
    <p>The criminals stole $1,000,000 in jewels.</p>
  </blockquote>
  
  <p>How do I detect if it has dollar signs ("$"), commas (","), and numbers?</p>