title: Error message "no handlers could be found for logger ZODB.FileStorage" on copied ZODB database
body: <p>I created a database using <code>ZODB</code>, then I copied-pasted it to another PC. I wonder  why every time I log in this database (the copied one) I get this error:</p>
  
  <pre><code>no handlers could be found for logger (ZODB.FileStorage)
  </code></pre>
  
  <p>Note: the program doesn't break, it just print out the statement in red as if it's an error.</p>
  
  <p>What is this annoying message and why does it happen every time I log in?</p>
  
  <p>Update no(1): What is the python logging system ? Why do I need to configure it in my application?</p>
  
  <p>Note:</p>
  
  <ol>
  <li><p>I only use ZODB.</p></li>
  <li><p>My OS is Windows XP sp2.</p></li>
  </ol>