是否有(简单)方法在Python中解析CRL？

pip install pyOpenSSL

from OpenSSL import crypto

def parse_crl(crl_file):
    with open(crl_file, 'rb') as file:
        crl_data = file.read()
        crl = crypto.load_crl(crypto.FILETYPE_ASN1, crl_data)
        # 解析CRL的相关信息
        issuer = crl.get_issuer().commonName
        last_update = crl.get_last_update()
        next_update = crl.get_next_update()
        revoked_certificates = crl.get_revoked()
        
        # 打印解析结果
        print("Issuer: ", issuer)
        print("Last Update: ", last_update)
        print("Next Update: ", next_update)
        print("Revoked Certificates: ")
        for revoked in revoked_certificates:
            print("Serial Number: ", revoked.get_serial())
            print("Revocation Date: ", revoked.get_rev_date())

# 调用函数解析CRL文件
parse_crl('example.crl')