python ftp sftp

ftp 上传下载文件

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from ftplib import FTP import time import os import shutil port = 21 def (host, port, username, password): ftp = FTP() ftp.set_debuglevel(2) ftp.connect(host, port) # 连接 ftp.login(username, password) # 登录，如果匿名登录则用空串代替即可 return ftp def downloadfile(ftp, remotepath, localpath): bufsize = 1024 # 设置缓冲块大小 fp = open(localpath, 'wb') # 以写模式在本地打开文件 ftp.retrbinary('RETR ' + remotepath, fp.write, bufsize) # 接收服务器上文件并写入本地文件 ftp.set_debuglevel(0) # 关闭调试 fp.close() # 关闭文件 def uploadfile(ftp, remotepath, localpath): bufsize = 1024 fp = open(localpath, 'rb') ftp.storbinary('STOR ' + remotepath, fp, bufsize) # 上传文件 ftp.set_debuglevel(0) fp.close() if __name__ == '__main__': ftp = ftpconnect(host, port, username, password) print(ftp)

paramiko 上传下载 SFTP 文件

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大专栏  python ftp sftpan class="line">import paramiko import os hostname = 'xxx' username = 'xxx' password = 'xxx' port = 22 # int upload_local_dir = 'xxx' download_local_dir = 'xxx' remote_dir = 'inbox/' # 注意目录，需要手动添加 / SFTP_DOWNLOAD_FLAG = False # 用来判断文件是否下载成功 def sftp_callback(transfered, total): global SFTP_DOWNLOAD_FLAG if transfered == total: SFTP_DOWNLOAD_FLAG = True def sftpconnect(host, port, username, password): try: sf = paramiko.Transport((host, port)) sf.connect(username=username, password=password) sftp = paramiko.SFTPClient.from_transport(sf) return sftp except Exception as e: print('connect exception: ', e) def sftp_upload(host, port, username, password, local, remote): sf = paramiko.Transport((host, port)) sf.connect(username=username, password=password) sftp = paramiko.SFTPClient.from_transport(sf) try: if os.path.isdir(local): for f in os.listdir(local): sftp.put(os.path.join(local, f), os.path.join(remote+f)) else: sftp.put(local, remote) except Exception as e: print('upload exception: ', e) finally: if sf is not None: sf.close() def sftp_download(host, port, username, password, local, remote): global SFTP_DOWNLOAD_FLAG sf = paramiko.Transport((host, port)) sf.connect(username=username, password=password) sftp = paramiko.SFTPClient.from_transport(sf) try: # 远程目录不要用 os.path.isdir(local) 判断是否是文件夹，除非已经确定 # 因为 inbox/ 的上层目录可能没有权限访问，判断目录总是会返回 False for f in sftp.listdir(remote): sftpAttributes = sftp.lstat(os.path.join(remote+f)) fileSize = sftpAttributes.st_size if fileSize: # 只有文件不为空，才会调用 sftp_callback 函数 sftp.get(os.path.join(remote+f), os.path.join(local, f), sftp_callback) else: # 空文件无法用 sftp_callback 判断是否下载成功，所以不下载 continue if SFTP_DOWNLOAD_FLAG: # 下载成功，移除远程目录文件 SFTP_DOWNLOAD_FLAG = False sftp.remove(os.path.join(remote+f)) else: # 如果上传存在问题，移除本地已经上传的文件 os.remove(os.path.join(local, f)) except Exception as e: print('download exception: ', e) finally: if sf is not None: sf.close() if __name__ == '__main__': # 测试连接 sftp = sftpconnect(host, port, username, password) print(sftp)