在Python中从FTP服务器下载更改名称的文件

import ftplib

def download_and_rename_file(ftp_host, ftp_user, ftp_password, file_path, new_file_name):
    try:
        # 连接到FTP服务器
        ftp = ftplib.FTP(ftp_host)
        ftp.login(ftp_user, ftp_password)

        # 下载文件
        with open(new_file_name, 'wb') as file:
            ftp.retrbinary('RETR ' + file_path, file.write)

        # 关闭连接
        ftp.quit()
        
        # 文件下载成功后，将其重命名
        os.rename(new_file_name, new_file_name)
        print("文件下载并重命名成功！")

    except ftplib.all_errors as e:
        print("FTP错误:", e)

# 调用函数
ftp_host = 'ftp.example.com'
ftp_user = 'username'
ftp_password = 'password'
file_path = '/path/to/file'
new_file_name = 'new_file_name.txt'

download_and_rename_file(ftp_host, ftp_user, ftp_password, file_path, new_file_name)