the power of dict comprehensions I

dict-comprehension-I.py

for i in list_thing:
  temp = {}
  data_obj = i.data
  if data_obj:
    data_within = data_obj.get('data1')
    if data_within:
      for data in data_within:
        if data.get('field1') and data.get('field2):
          temp[data] = helper.function(data_within[data].get('field1'), data_within[data].get('field2')
          
# reduced
for i in list_thing:
  temp = {}
  if i.data:
    temp = {key: helper.function(value.get('field1'),value.get('field2')) for key, value in i.data.get('data1', {}).iteritems() if value.get('field1') and value.get('field2')}