title: Move minus sign from right to left?
body: <p>I have a number <code>'24.45-'</code> and wanted to move the minus sign from right to left like <code>'-24.45'</code> in Python.I am dealing with huge data in data frame and trying to do this using regex so that I can apply on the whole column. Tried this but with no luck, any suggestions please.</p>
  
  <pre><code>print(re.sub(r"([0-9.]+)((\W$))","\2\1","24.45-"))
  </code></pre>