如何在Python中使用ftplib上传二进制文件？

问题描述：

我的python2脚本很好地使用这种方法上传文件，但python3呈现问题，我坚持下一步去哪里（谷歌搜索没有帮助）。如何在Python中使用ftplib上传二进制文件？

from ftplib import FTP 
ftp = FTP(ftp_host, ftp_user, ftp_pass) 
ftp.storbinary('STOR myfile.txt', open('myfile.txt'))

我得到的错误是

Traceback (most recent call last): 
    File "/Library/WebServer/CGI-Executables/rob3/functions/cli_f.py", line 12, in upload 
    ftp.storlines('STOR myfile.txt', open('myfile.txt')) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 454, in storbinary 
    conn.sendall(buf) 
TypeError: must be bytes or buffer, not str

我试图改变代码

from ftplib import FTP 
ftp = FTP(ftp_host, ftp_user, ftp_pass) 
ftp.storbinary('STOR myfile.txt'.encode('utf-8'), open('myfile.txt'))

而是我得到这个

Traceback (most recent call last): 
    File "/Library/WebServer/CGI-Executables/rob3/functions/cli_f.py", line 12, in upload 
    ftp.storbinary('STOR myfile.txt'.encode('utf-8'), open('myfile.txt')) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 450, in storbinary 
    conn = self.transfercmd(cmd) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 358, in transfercmd 
    return self.ntransfercmd(cmd, rest)[0] 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 329, in ntransfercmd 
    resp = self.sendcmd(cmd) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 244, in sendcmd 
    self.putcmd(cmd) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 179, in putcmd 
    self.putline(line) 
    File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/ftplib.py", line 172, in putline 
    line = line + CRLF 
TypeError: can't concat bytes to str

可有人点我的正确的方向

没有什么py3k独占这个问题。 – SilentGhost 2010-05-26 10:54:26

这不是py3k的独占，而是通过相同的代码突然抛出一个错误（并根据您的答案这是正确的做法），我认为它可能是与字符串编码相关的。 – Teifion 2010-05-26 12:49:00

答

问题不在于命令参数，而在于文件对象。既然你存储二进制你需要打开文件，'rb'标志：

>>> ftp.storbinary('STOR myfile.txt', open('myfile.txt', 'rb')) 
'226 File receive OK.'

目前工作时，我会回家测试一下，希望所有人都会很开心，谢谢！ – Teifion 2010-05-26 12:47:01

答

追加在FTP文件。

注：它不是SFTP - FTP只

import ftplib 
ftp = ftplib.FTP('localhost') 
ftp.login ('user','password') 
fin = open ('foo.txt', 'r') 
ftp.storbinary ('APPE foo2.txt', fin, 1)

编号：Thanks to Noah

如何在Python中使用ftplib上传二进制文件？

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