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Downloading a directory tree with ftplib


Downloading a directory tree with ftplib

By : Eshwar
Date : January 02 2021, 06:48 AM
fixed the issue. Will look into that further This will not download the contents of sub-directories; how can I do so? , this should do the trick :)
code :


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Prevent ftplib from Downloading a File in Progress?

Prevent ftplib from Downloading a File in Progress?


By : raghava
Date : March 29 2020, 07:55 AM
I wish this help you “Damn the torpedoes! Full speed ahead!”
Just download the file. If it is a large file then after the download completes wait as long as is reasonable for your scenario and continue the download from the point it stopped. Repeat until there is no more stuff to download.
Downloading text files with Python and ftplib.FTP from z/os

Downloading text files with Python and ftplib.FTP from z/os


By : Christian Perfect
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Just came across this question as I was trying to figure out how to recursively download datasets from z/OS. I've been using a simple python script for years now to download ebcdic files from the mainframe. It effectively just does this:
code :
def writeline(line):
    file.write(line + "\n")

file = open(filename, "w")
ftp.retrlines("retr " + filename, writeline)
ftplib.error_perm: 500 not understood downloading file from ftp

ftplib.error_perm: 500 not understood downloading file from ftp


By : Eemm Erich
Date : March 29 2020, 07:55 AM
may help you . I am newbie to python and trying to download all csv files from a ftp folder but I receive this error. this is my code: , missing space at ftp.retrbinary: (I also prfer with statement):
code :
ftp = ftplib.FTP('192.128.0.20', 'bingo', 'Password')
ftp.cwd('/')
filematch = '*.csv'
target_dir = '/home/toor/ringolist'
import os

for filename in ftp.nlst(filematch):
    target_file_name = os.path.join(target_dir, os.path.basename(filename))
    with open(target_file_name ,'wb') as fhandle:
        ftp.retrbinary('RETR %s' % filename, fhandle.write)
Ignore missing file while downloading with Python ftplib

Ignore missing file while downloading with Python ftplib


By : user3144669
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I am trying to download a certain file (named 010010-99999-year.gz) from an FTP server. This same file, but for different years is residing in different FTP directories. For instance: , I took your code and modified it a little:
code :
from ftplib import FTP, error_perm
import os

def FtpDownloader2(url="ftp.ncdc.noaa.gov"):
    ftp = FTP(url)
    ftp.login()
    for year in range(1901, 2015):
        remote_file = '/pub/data/noaa/isd-lite/{0}/010010-99999-{0}.gz'.format(year)
        local_file = os.path.basename(remote_file)
        try:
            with open(local_file, "wb") as file_handle:
                ftp.retrbinary('RETR %s' % remote_file, file_handle.write)
            print('OK', local_file)
        except error_perm:
            print('ERR', local_file)
            os.unlink(local_file)
    ftp.close()
Downloading partial file with ftplib

Downloading partial file with ftplib


By : Alberto
Date : March 29 2020, 07:55 AM
Hope that helps Try using the FTP.retrbinary() method and supply the rest argument, which is an offset into the requested file. Since the offset is from the beginning of the file, you will need to calculate the offset using the size of the file and the desired number of bytes of data. Here's an example using debian's FTP server:
code :
from ftplib import FTP

hostname = 'ftp.debian.org'
filename = 'README'
num_bytes = 500                # how many bytes to retrieve from end of file

ftp = FTP(hostname)
ftp.login()
ftp.cwd('debian')

cmd = 'RETR {}'.format(filename)
offset = max(ftp.size(filename) - num_bytes, 0)
ftp.retrbinary(cmd, open(filename, 'wb').write, rest=offset)

ftp.quit()
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