使用 Python ftplib 上传文件时出现“'NoneType' 对象没有属性 'sendall'”

Question

我制作了一个 FTP 客户端来将文件传输到 FTP 服务器，但是无论我如何更改 storbinary 函数

from ftplib import FTP
import os
from pathlib import Path

ftp = FTP()
ftp.connect('127.0.0.1', 2121)
ftp.login('user', '12345')
ftp.pwd()
ftp.retrlines('LIST')
ftp.quit()

def uploadfile():
    filename = 'C:\Users\RE\Desktop\Software dev\Ftp client and server\test.txt'
    localfile = open(filename, 'rb')
    ftp.storbinary('STOR %s' %os.path.basename(filename), localfile, 1024)
    localfile.close()

uploadfile()
ftp.retrlines('LIST')
fetchfile()
ftp.quit()

这是我的错误日志

Traceback (most recent call last):
  File "C:\Users\RE\Desktop\Software dev\Ftp client and server\ftp-client.py", line 24, in <module>
    uploadfile()
  File "C:\Users\RE\Desktop\Software dev\Ftp client and server\ftp-client.py", line 21, in uploadfile
    ftp.storbinary('STOR %s' %os.path.basename(filename), localfile, 1024)
  File "C:\Users\RE\AppData\Local\Programs\Python\Python37\lib\ftplib.py", line 503, in storbinary
    self.voidcmd('TYPE I')
  File "C:\Users\RE\AppData\Local\Programs\Python\Python37\lib\ftplib.py", line 277, in voidcmd
    self.putcmd(cmd)
  File "C:\Users\RE\AppData\Local\Programs\Python\Python37\lib\ftplib.py", line 199, in putcmd
    self.putline(line)
  File "C:\Users\RE\AppData\Local\Programs\Python\Python37\lib\ftplib.py", line 194, in putline
    self.sock.sendall(line.encode(self.encoding))
AttributeError: 'NoneType' object has no attribute 'sendall'

Answer 1

您正在有效地执行此操作：

ftp.quit()
uploadfile()

所以我相信很清楚，上传失败的原因。您在上传前关闭会话。

使用 Python ftplib 上传文件时出现“'NoneType' 对象没有属性 'sendall'”

"'NoneType' object has no attribute 'sendall'" when uploading file with Python ftplib

python

ftp

ftp-client

file-upload

ftplib