(Chilkat2-Python) File Existence Check

Testing to see if a file exists on the FTP server. The GetSizeByName method is a convenient way to check if a file exists. It will return -1 if the file does not exist, otherwise it returns the size of the file in bytes.

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 = "username"
ftp.Password = "password"

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

# Set the current remote directory to where the file is located:
success = ftp.ChangeRemoteDir("something")
if (success != True):
    print(ftp.LastErrorText)
    sys.exit()

# Test to see if the file exists by getting the file size by name. 
# If a -1 is returned, the file does not exist.
fileSize = ftp.GetSizeByName("test123.txt")
if (fileSize < 0):
    print("file does not exist")
else:
    print("file exists and is " + str(fileSize) + " bytes in size")

success = ftp.Disconnect()