Traceback (most recent call last):

 "/opt/cobra/cobra/__init__.py", line 90, in main
api.start(args.host, args.port, args.debug)

 "/opt/cobra/cobra/api.py", line 767, in start
api.add_resource(Sendmail, 'api/send_mail')

 "/usr/local/python27/lib/python2.7/site-packages/flask_restful/__init__.py", line 404, in add_resource
self._register_view(self.app, resource, *urls, **kwargs)

 "/usr/local/python27/lib/python2.7/site-packages/flask_restful/__init__.py", line 470, in _register_view
app.add_url_rule(rule, view_func=resource_func, **kwargs)

 "/usr/local/python27/lib/python2.7/site-packages/flask/app.py", line 62, in wrapper_func
return f(self, *args, **kwargs)

 "/usr/local/python27/lib/python2.7/site-packages/flask/app.py", line 976, in add_url_rule
rule = self.url_rule_class(rule, methods=methods, **options)

 "/usr/local/python27/lib/python2.7/site-packages/werkzeug/routing.py", line 599, in __init__
raise ValueError('urls must start with a leading slash')ValueError: urls must start with a leading slash
Traceback (most recent call last):


 "<stdin>", line 1, in <module>
TypeError: 'Field' object is not callable
