diff -r 2a2d0d5df03b -r fda45bdfd68d pgtoolkit/tools/loopquery.py
--- a/pgtoolkit/tools/loopquery.py	Tue May 06 18:37:43 2014 +0200
+++ b/pgtoolkit/tools/loopquery.py	Wed May 07 18:33:50 2014 +0200
@@ -1,11 +1,11 @@
-from pgtoolkit.toolbase import ToolBase
+from pgtoolkit.toolbase import SimpleTool
 
 import logging.handlers
 import time
 from datetime import datetime, timedelta
 
 
-class LoopQueryTool(ToolBase):
+class LoopQueryTool(SimpleTool):
 
     """
     Execute queries in loop, with configurable interval.
@@ -13,40 +13,31 @@
     """
 
     def __init__(self):
-        ToolBase.__init__(self, name='loopquery')
+        SimpleTool.__init__(self, name='loopquery')
         self.target_isolation_level = 'autocommit'
 
     def specify_args(self):
-        ToolBase.specify_args(self)
-        self.parser.add_argument('target', nargs='?', metavar='target', type=str, help='Target database')
-        self.parser.add_argument('-c', dest='config', type=str, help='Additional config file (besides pgtoolkit.conf).')
+        SimpleTool.specify_args(self)
         self.parser.add_argument('-q', dest='queries', metavar='QUERY', nargs='*', help='Queries to run.')
         self.parser.add_argument('--mins', dest='delay_mins', type=int, help='Delay between queries in minutes.')
         self.parser.add_argument('--secs', dest='delay_secs', type=int, help='Delay between queries in seconds.')
 
-        self.config.add_option('target', type=str, default=None)
         self.config.add_option('queries', type=list, default=[])
         self.config.add_option('delay_mins', type=int, default=0)
         self.config.add_option('delay_secs', type=int, default=0)
         self.config.add_option('log_path', type=str)
 
     def load_args(self, args=None, config_file=None):
-        ToolBase.load_args(self, args, config_file)
-        if self.args.config:
-            self.config.load(self.args.config)
+        SimpleTool.load_args(self, args, config_file)
         self.queries = self.args.queries or self.config.queries
         self.delay_mins = self.args.delay_mins or self.config.delay_mins
         self.delay_secs = self.args.delay_secs or self.config.delay_secs
 
     def init_logging(self):
-        ToolBase.init_logging(self)
+        SimpleTool.init_logging(self)
         if self.config.log_path:
             self.init_file_logs(self.config.log_path)
 
-    def setup(self, args=None):
-        ToolBase.setup(self, args)
-        self.prepare_conns(target=self.args.target or self.config.target)
-
     def init_file_logs(self, path):
         format = logging.Formatter('%(asctime)s %(levelname)-5s %(message)s', '%y-%m-%d %H:%M:%S')
         handler = logging.handlers.TimedRotatingFileHandler(path+'/main.log', when='midnight', backupCount=5)