title: (Python) Replace array of string elements
body: <p>I want to replace an array of string elements，but have a problem:</p>
  
  <p>This is correct!!</p>
  
  <p><a href="https://i.stack.imgur.com/KgAQY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KgAQY.png" alt="enter image description here"></a></p>
  
  <p>However，this is error:</p>
  
  <p><a href="https://i.stack.imgur.com/cIKGb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cIKGb.png" alt="enter image description here"></a></p>
  
  <p>It seem replace first char....</p>
  
  <p>Thanks to your help.</p>