How to download a file via FTP with Python ftplib

Question

I have the following code which easily connects to the FTP server and opens a zip file  I want to download that file into the local system  How to do that     Open the file for writing in binary mode print  Opening local file     filename file   open filename   wb      Download the file a chunk at a time   Each chunk is sent to handleDownload   We append the chunk to the file and then print a     for progress   RETR is an FTP command  print  Getting     filename ftp retrbinary  RETR     filename  handleDownload     Clean up time print  Closing file     filename file close

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If you are not limited to using ftplib you can also give wget module a try  Here  is the snippet import wget file loc    http   www website com foo zip  wget download file loc

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The ftplib module in the Python standard library can be compared to assembler  Use a high level library like  https   pypi python org pypi ftputil

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handle   open path rstrip              filename lstrip        wb   ftp retrbinary  RETR  s    filename  handle write

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FILENAME    StarWars avi       with ftplib FTP FTP IP  FTP LOGIN  FTP PASSWD  as ftp      ftp cwd  movies       with open FILENAME   wb   as f          ftp retrbinary  RETR     FILENAME  f write    Of course it would we be wise to handle possible errors

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Please note if you are downloading from the FTP to your local  you will need to use the following    with open  filename   wb    as file           ftp retrbinary  RETR  s    filename  file write    Otherwise  the script will at your local file storage rather than the FTP   I spent a few hours making the mistake myself   Script below   import ftplib    Open the FTP connection ftp   ftplib FTP   ftp cwd   where files-are located     filenames   ftp nlst    for filename in filenames       with open  filename   wb    as file           ftp retrbinary  RETR  s    filename  file write           file close    ftp quit

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A   filename  ftp   ftplib FTP  IP   ftp login  USR Name    Pass   ftp cwd   Dir     try      ftp retrbinary  RETR     filename  open A   wb   write  except      print  Error

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This is a Python code that is working fine for me  Comments are in Spanish but the app is easy to understand    coding utf-8  from ftplib import FTP                                                                        Importamos la libreria ftplib desde FTP  import sys  def imprimirMensaje                                                                           Definimos la funcion para Imprimir el mensaje de bienvenida     print  ------------------------------------------------------      print  --               COMMAND LINE EXAMPLE               --      print  ------------------------------------------------------      print        print   gt  gt  gt              Cliente FTP  en Python                      print        print   gt  gt  gt  python  lt appname gt  py  lt host gt   lt port gt   lt user gt   lt pass gt          print  ------------------------------------------------------   def f s                                                                                       Funcion para imprimir por pantalla los datos      print s  def download j                                                                                Funcion para descargarnos el fichero que indiquemos seg  n numero         print  Descargando  gt   files j            fhandle   open files j    wb       ftp retrbinary  RETR     files j   fhandle write                                          Imprimimos por pantalla lo que estamos descargando         fhandle close       fhandle close                                                         ip            sys argv 1                                                                      Recogemos la IP       desde la linea de comandos sys argv 1   puerto        sys argv 2                                                                      Recogemos el PUERTO   desde la linea de comandos sys argv 2  usuario       sys argv 3                                                                      Recogemos el USUARIO  desde la linea de comandos sys argv 3  password      sys argv 4                                                                      Recogemos el PASSWORD desde la linea de comandos sys argv 4    ftp   FTP ip                                                                                  Creamos un objeto realizando una instancia de FTP pasandole la IP ftp login usuario password                                                                    Asignamos al objeto ftp el usuario y la contrase  a  files   ftp nlst                                                                              Ponemos en una lista los directorios obtenidos del FTP  for i v in enumerate files 1                                                                  Imprimimos por pantalla el listado de directorios enumerados     print i  - gt   v  print    i   int raw input  Pon un N   para descargar el archivo or pulsa 0 para descargarlos n         Introducimos algun numero para descargar el fichero que queramos  Lo convertimos en integer  if i  0                                                                                       Si elegimos el valor 0 nos decargamos todos los ficheros del directorio                                                                                    for j in range len files                                                                  Hacemos un for para la lista files y         download j                                                                            llamamos a la funcion download para descargar los ficheros if i gt 0 and i lt  len files                                                                       Si elegimos unicamente un numero para descargarnos el elemento nos lo descargamos  Comprobamos que sea mayor de 0 y menor que la longitud de files      download i-1                                                                              Nos descargamos i-1 por el tema que que los arrays empiezan por 0

[python] How to download a file via FTP with Python ftplib

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