title: search pandas dataframe for keywords in python
body: <p>im trying to search through a csv file for keywords but right now I cant even find one string here is what I'm doing any solutions
  I converted the csv to a pandas dataframe I would like to add a id=ndication to the dataframe like a check or running count</p>
  <pre><code>  import pandas as pd
  import numpy as np
  
  
  df = pd.read_csv('InventoryValue-byItem-6-25-22.csv')
  
  df.apply(lambda columns: columns.astype(str).str.contains(&quot;VODKA&quot;).any(), axis=1)
  
  df.to_csv('file_name.csv', index=False)
  </code></pre>