title: How do i replace all instances of a dash (-) with the number zero (0) in the middle of a string in pandas dataframe?
body: <p>I have a column that has 5 numbers then a dash then another 5 numbers for example 44004-23323. I would like to remove that dash in the middle. I would like the output to be something like this 44004023323
  I have tried this code below but its not working. </p>
  
  <pre class="lang-py prettyprint-override"><code>df['Lane'] = df['Lane'].apply(lambda x: "0" if x == "-" else x)
  </code></pre>