cleared hardwired ".robot" string and len

    number_of_failures = 0

    number_of_all_testcases = 0

    number_of_successes = 0

    ROBOT_FILE_EXTENSION = ".robot"

    fullpath = basedir+"/TP/NGSI-LD"

    for root, dirs, files in walk(fullpath):

        for filename in files:

            if filename.endswith(".robot"):

            if filename.endswith(ROBOT_FILE_EXTENSION):

                number_of_all_testcases += 1

                name_of_test_case = filename[:-6]

                name_of_test_case = filename[:-len(ROBOT_FILE_EXTENSION)]

                json_of_test_case = create_json_of_robotfile(name_of_test_case, True)

                statistics[name_of_test_case] = dict()

                strippedpath = root[len(fullpath)+1:]