On 2013-02-05 17:29, chris.an...@gmail.com wrote:
im trying to delete all text files from an ftp directory. is there a way to
delete multiple files of the same extension?
I came up with the following code below which works but I have to append the
string because ftp.nlst returns:
"-rwx------ 1 user group 0 Feb 04 15:57 New Text Document.txt"
but then when I try to delete it that long file name which includes the date doesnt exist - the
files name is "new text document.txt" not "-rwx------ 1 user group 0 Feb 04 15:57
New Text Document.txt"
so anyway I stripped off the the beginning keeping the last 21 characters and
it worked great - this should work being that I know all my text files names
are the same length in characters - but it seems like there should be a better
more bullet proof way to do this?
[code]import os
import system
from ftplib import FTP
ftp = FTP('127.0.0.1')
ftp.login('')
directory = 'test'
ftp.cwd(directory)
files = ftp.nlst()
for file in files:
if file.find(".txt") != -1:
file = (file [-21:])
ftp.delete(file)
ftp.close()[/code]
any ideas on this? thank you.
Firstly, instead of:
file.find(".txt") != -1
use:
file.endswith(".txt")
It's clearer (and it's true only if the ".txt" is at the end!)
Secondly, your code assumes that the filename is exactly 21 characters.
It looks like the strings returned by ftp.nlst() consist of 9 fields
separated by whitespace, with the last field being the filename,
which can also contain spaces. That being so, you can split the strings
like this:
fields = file.split(None, 9)
That'll make a maximum of 9 splits on any whitespace, for example:
>>> "-rwx------ 1 user group 0 Feb 04 15:57 New Text
Document.txt".split(None, 9)
['-rwx------', '1', 'user', 'group', '0', 'Feb', '04', '15:57', 'New',
'Text Document.txt']
Therefore:
for entry in ftp.nlst():
if entry.endswith(".txt"):
filename = entry.split(None, 9)[-1]
ftp.delete(filename)
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