import re
strings = [
'99921-58-10-7',
'9971-5-0210-0',
'960-425-059-0',
'80-902734-1-6',
'85-359-0277-5',
'1-84356-028-3',
'0-684-84328-5',
'0-8044-2957-X',
'0-85131-041-9',
'0-943396-04-2',
'0-9752298-0-X',
'0-975229-1-X',
'0-9752298-10-X',
'0-9752298-0-Y',
'910975229-0-X',
'-------------',
'0000000000000',
'3-3-3-X',
]
for isbn in strings:
print(isbn)
if (re.search(r'^[0-9X-]{13}$', isbn)):
print("match 1")
if (len(isbn) == 13 and re.search(r'^[0-9]{1,5}-[0-9]{1,7}-[0-9]{1,5}-[0-9X]$', isbn)):
print("match 2")