new file mode 100644
--- /dev/null
+++ b/argparse_modified.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from argparse import ArgumentParser as OriginalArgumentParser
+
+class ParseException(Exception): pass
+
+class ArgumentParser(OriginalArgumentParser):
+	
+	def _print_message(self, message, file=None):
+		if not hasattr(self, 'ret'):
+			self.ret = ''
+		self.ret += message
+	
+	def exit(self, status=0, message=''):
+		if hasattr(self, 'ret') and isinstance(self.ret, basestring):
+			raise ParseException(status, self.ret+message)
+		else:
+			raise ParseException(status, message)