title: How to apply an operationg to all column names of a Dataframe except one in Pandas?
body: <p>I have the following problem. I have a dataframe which has some columns (which title names are strings):</p>
  <pre><code>         VALUE_NUMBER    Alias     TS_ns ...  Final_column
  0        0.116000        Name_1    3     ...      aaa
  1        3.448000        Name_2    34    ...      bbb
  2        6.106000        Name_3    7     ...      ccc
  3        4.048000        Name_4    54    ...      ddd
  4        4.358000        Name_5    32    ...      eee
  </code></pre>
  <p>I have also a function <code>func</code> which performs operations on strings:</p>
  <pre><code>def func( string ):
      # do some operations on string...
  </code></pre>
  <p>I would like to apply this function to all the dataframe column titles, <strong>except the <code>Alias</code> one</strong>.</p>
  <p>How can I do it? Thanks.</p>