Fill variable with text of a .txt file at an FTP server in Python

Question

I think my question sounds kinda stupid but I'm pretty new to python programming.

I just want to have a text variable which gets a string from a .txt file at an FTP server.

So in conclusion: There is a .txt File stored at an FTP server and I want to have the content of this file stored in an variable...

This is what I have so far... Can anybody help me? I use Python 3.6.3 :) thanks in advance!

from ftplib import FTP

ftp = FTP('1bk2t.ddns.net')
ftp.login(user='User', passwd = 'Password')

ftp.cwd('/path/')

filename = 'filename.txt'

ftp.retrbinary("RETR " + filename, open(filename, 'wb').write)
ftp.quit()

var = localfile.read

Martin Prikryl · Answer 1 · 2019-08-28T14:05:18.570

2

If you want to download a text file contents to memory, without using any temporary file, use FTP.retrlines like:

contents = ""
def collectLines(s):
    global contents
    contents += s + "\n"

ftp.retrlines("RETR " + filename, collectLines)

Or use an array:

lines = []
ftp.retrlines("RETR " + filename, lines.append)

edited Aug 28 '19 at 14:05

answered Dec 07 '17 at 11:36

Martin Prikryl

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score -1 · Answer 2 · edited Sep 05 '19 at 10:42

-1

You can use StringIO as buffer for retrlines RETR:

import io

with io.StringIO() as buffer_io:
    ftp.retrlines(f'RETR {filename}', buffer_io.write)
    content = buffer_io.getvalue()

edited Sep 05 '19 at 10:42

Martin Prikryl

188,800
56
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answered Sep 05 '19 at 08:55

mastak

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This way you loose the EOLs. – Martin Prikryl Sep 05 '19 at 10:45
Yes, but some times it does not matter, for example for files like JSON/XML/HTML. – mastak Sep 05 '19 at 11:59
1

OK, but you should at least mention that in your answer. And even in XML/HTML *some* new lines matter. – Martin Prikryl Sep 05 '19 at 12:03

Fill variable with text of a .txt file at an FTP server in Python

2 Answers2

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