function for finding indices of uid1 and uid2 in a list of tuples

###
# function for finding indices of uid1 and uid2 in a list of tuples
# network = [(4, [6,8,9]), .......]
###
def findUserIndices(uid1, uid2, network):
    found = 0 # reset the found
    uid1_idx = None
    uid2_idx = None
    for idx,item in enumerate(network):
        if item[0] == uid1:
            uid1_idx = idx
            found+=1
        elif item[0] == uid2:
            uid2_idx = idx
            found+=1
        if found==2: # Dont spend cpu cycles after finding the indices
            break
    return(uid1_idx, uid2_idx)