i need to work on oemedical module i can not found it with modules in setting\import modules id download this module from net and  i try to import this module to the application i found this error

Traceback (most recent call last):
  File "/home/odoo/src/odoo/saas-3/openerp/http.py", line 381, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/odoo/src/odoo/saas-3/openerp/http.py", line 400, in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/saas-3/openerp/http.py", line 237, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/saas-3/openerp/service/model.py", line 114, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/saas-3/openerp/http.py", line 234, in checked_call
    return self.func(*a, **kw)
  File "/home/odoo/src/odoo/saas-3/openerp/http.py", line 555, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/saas-3/addons/web/controllers/main.py", line 1237, in call_button
    action = self._call_kw(model, method, args, {})
  File "/home/odoo/src/odoo/saas-3/addons/web/controllers/main.py", line 1225, in _call_kw
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
  File "/home/odoo/src/odoo/saas-3/openerp/addons/base/module/wizard/base_module_import.py", line 51, in importzip
    raise NotImplementedError('This feature is not available')
NotImplementedError: This feature is not available