(Chilkat2-Python) Restart/Resume FTP Upload

Demonstrates how to restart / resume an FTP upload.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

ftp = chilkat2.Ftp2()

ftp.Hostname = "ftp.example.com"
ftp.Username = "login"
ftp.Password = "password"

# Connect and login to the FTP server.
success = ftp.Connect()
if (success != True):
    print(ftp.LastErrorText)
    sys.exit()

# Change to the remote directory where the file will be uploaded.
success = ftp.ChangeRemoteDir("temp")
if (success != True):
    print(ftp.LastErrorText)
    sys.exit()

# In this example, assume that a previous FTP upload failed,
# and the incomplete file (bigFile.zip) exists on the FTP server.
# You only need to set the RestartNext property to resume
# the upload.  When RestartNext is set, the next call
# to PutFile (or PutFileFromBinaryData, PutFileFromTextData)
# will automatically resume the upload from the point of failure.
# (The way it works is that the FTP component sends a "SIZE"
# command to the FTP server to find out how many bytes of
# the file already exist on the server.  It then begins
# uploading from that point.

# Note: After PutFile is called, the RestartNext property
# is automatically set to false.
ftp.RestartNext = True

# Upload a file with restart.
localFilename = "bigFile.zip"
remoteFilename = "bigFile.zip"

success = ftp.PutFile(localFilename,remoteFilename)
if (success != True):
    print(ftp.LastErrorText)
    sys.exit()

success = ftp.Disconnect()

print("File Uploaded!")