[Python-bugs-list] [ python-Bugs-495693 ] urllib doesn't support passive FTP

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Bugs item #495693, was opened at 2001-12-20 16:51
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=495693&group_id=5470

Category: Python Library
Group: Feature Request
Status: Open
Resolution: None
Priority: 5
Submitted By: Matthias Klose (doko)
Assigned to: Nobody/Anonymous (nobody)
Summary: urllib doesn't support passive FTP

Initial Comment:
[please CC 40981@bugs.debian.org on replies; complete 
report can be found at http://bugs.debian.org/40981]

urllib.urlopen/urlretrieve doesn't support passive FTP

urllib doesn't support passive FTP, even though the 
underlying ftplib
module does.  I dunno what the right approach is 
(perhaps a urllib
module global variable).  I know some tools (I'm aware 
of at least
ncftp and wget) autodetect whether PASV is supported 
by FTP servers;
perhaps that intelligence could be added to ftplib.

(Also: the FTP class's set_pasv() method isn't 
documented in my
version of python-docs; I haven't checked the new 
1.5.2 docs yet
however.)

At the moment, I'm using this ugly hack to get around 
it:

# Really ugly hack; don't try this at home:
def ftpwrapper_init(self):
    import ftplib
    self.busy = 0
    self.ftp = ftplib.FTP()
    self.ftp.set_pasv(1)
    self.ftp.connect(self.host, self.port)
    self.ftp.login(self.user, self.passwd)
    for dir in self.dirs:
        self.ftp.cwd(dir)

urllib.ftpwrapper.init = ftpwrapper_init
# End really ugly hack


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