用于连接 FTP 并下载文件的 Python 2.5 脚本

问题描述

我确信这已经解决了，但我似乎找不到类似的问答(新手)使用 Windows XP 和 Python 2.5，我正在尝试使用脚本连接到 FTP 服务器并下载文件.它应该很简单，但是按照类似脚本的说明，我得到了错误:

I am sure this has been resolved before but I cannot seem to find a similar Q&A (newbie) Using Windows XP and Python 2.5, I m trying to use a script to connect to an FTP server and dowload files. It should be simple but following the instructions of similar scripts I get the errors:

ftp.login('USERNAME')
  File "C:Python25libftplib.py", line 373, in login
    if resp[0] == '3': resp = self.sendcmd('PASS ' + passwd)
  File "C:Python25libftplib.py", line 241, in sendcmd
    return self.getresp()
  File "C:Python25libftplib.py", line 216, in getresp
    raise error_perm, resp
error_perm: 530 User USERNAME cannot log in.

我使用的脚本是:

def handleDownload(block):
    file.write(block)
    print ".",

# Create an instance of the FTP object
# FTP('hostname', 'username', 'password')
ftp = FTP('servername')

print 'ftplib example'
# Log in to the server
print 'Logging in.'
# You can specify username and password here if you like:
ftp.login('USERNAME', 'password') 
#print ftp.login()

# This is the directory 
directory = '/GIS/test/data'
# Change to that directory.  
print 'Changing to ' + directory
ftp.cwd(directory)

# Print the contents of the directory
ftp.retrlines('LIST')

我很欣赏这可能是一个微不足道的问题，但如果有人能提供一些见解，那将非常有帮助！

I appreciate this might be a trivial question, but if anyone can provide some insights it would be very helpful!

谢谢，S

推荐答案

我不明白你用的是哪个库.Python 标准 urllib2 就足够了:

I can't understand which library are you using. Python standard urllib2 is sufficient:

import urllib2, shutil

ftpfile = urllib2.urlopen("ftp://host.example.com/path/to/file")
localfile = open("/tmp/downloaded", "wb")
shutil.copyfileobj(ftpfile, localfile)

如果您需要登录(匿名 登录是不够的)，请在 url 中指定凭据:

If you need to login (anonymous login isn't sufficient), then specify the credentials inside the url:

urllib2.urlopen("ftp://user:password@host.example.com/rest/of/the/url")

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