如何在Python中从x.509证书中删除CT扩展？

import OpenSSL

# 读取证书文件
with open('certificate.pem', 'rb') as f:
    cert_data = f.read()

# 解析证书
cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, cert_data)

# 获取证书的扩展列表
extensions = cert.get_extensions()

# 查找CT扩展并删除
for i in range(len(extensions)):
    if extensions[i].get_short_name() == b'ct_precert_scts':
        cert.extensions = extensions[:i] + extensions[i+1:]
        break

# 生成新的证书文件
new_cert_data = OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM, cert)
with open('new_certificate.pem', 'wb') as f:
    f.write(new_cert_data)