title: TypeError: 'function' object is not iterable for csv_read
body: <p>I am trying to read the data from <code>.csv</code> file by using the code line below.</p>
  
  <pre><code>production = pd.read_csv("time_series_60min_singleindex.csv",
                          usecols= (lambda s: s.startswith('utc') | 
                          s.startswith('DE')),
                          parse_dates=[0], index_col=0)
  </code></pre>
  
  <p>But I am having error</p>
  
  <blockquote>
    <p>"TypeError: 'function' object is not iterable"</p>
  </blockquote>
  
  <p><a href="https://i.stack.imgur.com/WCqQ6.jpg" rel="nofollow noreferrer">Image</a> of traceback is also added.</p>