title: TypeError: can only concatenate str (not "numpy.int64") to str
body: <p>I want to print the variable based on the index number based on the following dataset:</p>
  
  <p><a href="https://i.stack.imgur.com/ajrcx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ajrcx.png" alt="enter image description here"></a></p>
  
  <p>Here I used the following code:</p>
  
  <pre><code>import pandas as pd
  
  airline = pd.read_csv("AIR-LINE.csv")
  
  pnr = input("Enter the PNR Number ")
  index = airline.PNRNum[airline.PNRNum==pnr].index.tolist()
  zzz = int(index[0])
  print( "The flight number is " + airline.FlightNo[zzz]  )
  </code></pre>
  
  <p>I get the following error:</p>
  
  <blockquote>
    <p>TypeError: can only concatenate str (not "numpy.int64") to str</p>
  </blockquote>
  
  <p>I know that the error is because the <code>FlightNo</code> variable contains <code>int</code> value. But I don't know how to solve it. Any idea?</p>