<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def getfieldidd_item(bch, fieldname, iddkey):
 """return an item from the fieldidd, given the iddkey will return and empty list if it does not have the iddkey or if the fieldname does not exist"""

    fieldidd = getfieldidd(bch, fieldname)
    try:
        return fieldidd[iddkey]
    except KeyError as e:
        return []