difficulty with for loops and appending in python 2.7 - python-2.7

Question

I need to write a for loop for the following process:
elements = [
[ "a", ['aft','fwd','starboard']],
[ "b", ['plastic','metal','wood']]
]
query1 = []
query2 = []
temp1 = []
temp2 = []
final = []
for keyword in elements[0][1]:
a = do_something.search(keyword)
query1.append(a)
temp1.append(elements[0][0])
temp1.append(query1)
for keyword in elements[1][1]:
a = do_something.search(keyword)
query2.append(a)
temp2.append(elements[1][0])
temp2.append(query2)
final.append(temp1)
final.append(temp2)
where do_something is a SQL query. The expected answer is something of the following:
final = [['a', [['result1','result2','result3'],['result4','result5']]],
['b', [['resultA','resultB']]]]
where results 1-5 are returned SQL queries associated with value 'a' and values A and B are returned SQL queries associated with value 'b'
My attempt:
query = []
temp = []
final = []
for i in range(0,len(elements)):
for keyword in elements[i][1]:
a = do_something.search(keyword)
query.append(a)
temp.append(elements[i][0])
temp.append(query)
final.append(temp)
but I seem to be over appending and I can't figure out the problem

Answer 1

I think you have condensed it ok you just aren't using clean containers
I would personally scope them in the loop :
#query = []
#temp = []
final = []
for i in range(0,len(elements)):
temp = []
query = [] # use an empty list
for keyword in elements[i][1]:
a = do_something.search(keyword)
query.append(a)
temp.append(elements[i][0]) # before the temp still contained first iteration data.
temp.append(query)
final.append(temp)