[New-bugs-announce] [issue2628] ftplib Persistent data connection

[Jonathan]

New submission from Jonathan <jbell at scrippsweb.com>:

About a year ago I found myself fighting a broken FTP server that
couldn't handle multiple passive data transfers through a firewall or
NATed connection. Thankfully, this same problem server supports block
transmission mode, which allows a client to create a single data
connection for transferring multiple files.

I've attached a patch (and sample debug output) for the latest trunk.

Might this be useful to anyone else in any way? I realize any MODE
option rather than S is widely unsupported and possibly an edge case,
but getting this into trunk would be preferable. We've been running this
code under Python2.3 for nearly a year -- the jobs run several times per
hour -- and are extremely happy with the results.

----------
components: Library (Lib)
files: ftplib.py.blockmode.patch
keywords: patch
messages: 65454
nosy: jbell
severity: normal
status: open
title: ftplib Persistent data connection
type: feature request
versions: Python 2.6
Added file: http://bugs.python.org/file10025/ftplib.py.blockmode.patch

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