storbinary() method of FTP class in Python

Method Name:

storbinary

storbinary(cmd, fp, blocksize, callback, rest)

cmd – The FTP command to be used.

fp – The file object. Typically obtained through the built-in function open().

blocksize - The maximum size of the to be read and sent through the network. The default size is 8192 bytes.

callback- The callback function. If provided, this function is called for every blocksize bytes sent.

rest – The location in the file from which the upload has to be continued.

A success message “226 Transfer complete“ or a failure message like “553 Could not create file”.

The method storbinary() initiates a file transfer from an FTP client to a an FTP server using the FTP command STOR.
The file transfer is done in binary mode. The method internally sends a “TYPE I” command to the FTP server, before sending a STOR command, meaning the next transfer is a binary image.
In binary mode, no translation of CR LF characters is done. This mode of transfer is preferred for binary files. To transfer text files, storlines() method can be used.

# Example Python program to upload a file to an FTP server

# in binary mode

from ftplib import FTP

# Create an FTP object and connect to the server

# as anonymous user

ftpObject = FTP(host="anftpserverhost");

print(ftpObject.getwelcome());

# Login to the server

ftpResponseMessage = ftpObject.login();

print(ftpResponseMessage);

# Change to the required working directory

ftpResponseMessage = ftpObject.cwd("/upload");

print(ftpResponseMessage);

# Open the file in binary mode

fileObject = open("1KB.zip", "rb");

file2BeSavedAs = "OneKB.zip"

ftpCommand = "STOR %s"%file2BeSavedAs;

# Transfer the file in binary mode

ftpResponseMessage = ftpObject.storbinary(ftpCommand, fp=fileObject);

print(ftpResponseMessage);

220 (vsFTPd 3.0.3)

230 Login successful.

250 Directory successfully changed.

226 Transfer complete.