When i am trying to install training module i face the below error . please some body can help thanks

Traceback (most recent call last): File "netsvc.pyo", line 489, in dispatch File "service\web_services.pyo", line 599, in dispatch File "osv\osv.pyo", line 129, in wrapper File "osv\osv.pyo", line 194, in execute File "osv\osv.pyo", line 185, in execute_cr File "C:\Program Files (x86)\OpenERP 6.0\Server\addons\base\module\wizard\base_module_upgrade.py", line 98, in upgrade_module File "pooler.pyo", line 60, in restart_pool File "pooler.pyo", line 39, in get_db_and_pool File "addons__init__.pyo", line 883, in load_modules File "addons__init__.pyo", line 752, in load_module_graph File "addons__init__.pyo", line 656, in load_demo_xml File "tools\convert.pyo", line 976, in convert_xml_import File "tools\convert.pyo", line 865, in parse File "tools\convert.pyo", line 367, in _tag_function File "tools\convert.pyo", line 192, in _eval_xml File "C:\Program Files (x86)\OpenERP 6.0\Server\addons\procurement\procurement.py", line 474, in run_scheduler File "C:\Program Files (x86)\OpenERP 6.0\Server\addons\procurement\schedulers.py", line 58, in _procure_confirm TypeError: enumerate() takes exactly 1 argument (2 given)