title: Save responses to a file via requests
body: <p>In my situation, I have only 1 iteration of response:</p>
  
  <pre><code>import requests
  
  url = "http://speedtest.ftp.otenet.gr/files/test100k.db"
  response = requests.get(url)
  
  
  for i in response:
      with open('/Path/To/File/test_file({0}).db'.format(i+1), 'wb') as f:
          f.write(response.content)
  </code></pre>
  
  <p>The problem is that I receive error message:</p>
  
  <pre><code>TypeError: can't concat int to bytes
  </code></pre>
  
  <p>I need to save a file to the specific folder every iteration and give a different name. </p>