import gds
import sys

for arg in sys.argv[1:]:
    f = open(arg, "rb")
    try:
        lib = gds.parse_file(f)
        print("file version: {}".format(lib.version))
        print("last access: {}".format(lib.last_access.isoformat()))
        print("last modification: {}".format(lib.last_mod.isoformat()))
        print("m/unit : {}".format(lib.meters_per_unit))
        print("unit/dbunit : {}".format(lib.units_per_dbunit))

        print("library name : {}".format(lib.name))
        print("contains a total of {} structure(s)".format(len(lib.structures)))

    except gds.ParserError as e:
        print("parser error: {}".format(e))
    finally:
        f.close()