import re
string = '[ 1234, jack, 1987-09-02]'
pattern = re.compile(r"(\d+?),\s([a-zA-Z]+?),\s(\d{4}\-\d{2}\-\d{2})")
print(pattern.search(string).groups())
aW1wb3J0IHJlCnN0cmluZyA9ICdbIDEyMzQsIGphY2ssIDE5ODctMDktMDJdJwpwYXR0ZXJuID0gcmUuY29tcGlsZShyIihcZCs/KSxccyhbYS16QS1aXSs/KSxccyhcZHs0fVwtXGR7Mn1cLVxkezJ9KSIpCnByaW50KHBhdHRlcm4uc2VhcmNoKHN0cmluZykuZ3JvdXBzKCkpCg==