title: PyCharm IDE is very slow on debug Python reading small pickle file
body: <p>Debug takes sometimes 10 seconds. The problem starts after reading 30mega + 5 mega pickles, with with pdb debugging is fine.
  Even on lines of 'print'</p>
  
  <p>any suggestions?</p>
  
  <pre><code>if __name__ == "__main__":
      print 'loading files...',
      with open(fname1, 'rb') as handle: items = pickle.load(handle)
      with open(fname2, 'rb') as handle: sentences_by_id= pickle.load(handle)
      print ' done!'
  </code></pre>