Getting a certain value from inside brackets.

[LeoT]

Hi there,
I'm a beginner so this problem might be very ease to solve.
Im doing a request to a device that responds with the following raw data:

[{u'address': {u'altitude': None,
               u'area': u'',
               u'buildingNumber': None,
               u'country': None,
               u'latitude': None,
               u'longitude': None,
               u'street': u'',
               u'zip': u''},
  u'id': 63XXXX,
  u'levelOfAccess': None,
  u'name': u'Schuppen',
  u'siteKey': u'YBCL-HXXX'}]

I basically want to save the value of 'siteKey', meaning YBCL-HXXX into a variable.
I had the problem before and could solve it using this method:

variableX = exampledata['siteKey']

With this method I get the following error:
TypeError: list indices must be integers, not str

I think it has to do with a different format of the raw data, because all my other raw data that I can put into a variable using the explained method is not [....] but only in {....}
I hope some of you can help me...
Best,
Leo