operatoin error catched

tools/fourier/cli.py

@@ -169,6 +169,9 @@ def main():
                         already_indexed += 1
                         print('already indexed: {}'.format(filename))
 
+                    except sqlite3.OperationalError:
+                        print('commit failed, retrying in next loop')
+
                     except KeyboardInterrupt:
                         break