attachment_1_elbow_pipe_longest_way_branch

#________________________________________________________________________
#Исключаем трубы-враги из отводов:

comands_list=list_elbow
clear_list = list_elbow[:]

for enemy in enemy_list:
    for comands in comands_list:
        if enemy in comands:
            enemy_list.extend(x for x in comands if x not in enemy_list)
            if comands in clear_list:
                clear_list.remove(comands)