Attribute error in nested method

Question

I have the following class:

class Connection(object):
 defaults = {
 'application_key':None,
 }
 def __init__(self, application_key="None"):
 self.application_key = application_key or Connection.defaults.get('application_key')
 def make_request(self, params=None, method=None):
 url = URL_FORMAT % {
 'params': params,
 }
 headers = {
 'Authorization': 'Token token='+ self.application_key,
 'content-type': 'application/json',
 }
 if method == "get":
 request = requests.get(url, headers=headers)
 if request.status_code == requests.codes.ok:
 return request.json()
 else:
 raise APIError("%s status received (not 200)" % request.status_code)
 elif method == "post":
 request = requests.post(url, headers=headers)
 request.status_code == requests.codes.ok
 if request.status_code == requests.codes.ok:
 return request.json()
 else:
 raise APIError("%s status received (not 200)" % request.status_code)
 def get_geofence(self):
 try:
 data = self.make_request('geofences', 'get')
 return data
 except APIError:
 raise GeofenceNotFound("Geofence not found")
 def get_geofence_id(self, geofence_id=None):
 try:
 data = self.make_request('geofences/'+self.geofence_id+'/', 'get')
 return data
 except APIError:
 raise GeofenceNotFound("Geofence not found with id #%s" % self.geofence_id)

The problem line seems to be data = self.make_request('geofences/'+self.geofence_id+'/', 'get') returning AttributeError: 'Connection' object has no attribute 'geofence_id'

I'm pretty stumped here.

• BrenBarn: As far as I can see, your object has no such attribute. Did you mean to use just geofence_id (with no self)? That is the variable that you are passing into the method.

Answer 1

geofence_id is not a class attribute, it is a function parameter. Thus, you should just refer to is as geofence_id and not self.geofence_id.