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(CkPython) Co:Z SFTP Binary File Download (from z/OS IBM Mainframe)

Demonstrates how to download a binary file, such as a .zip, from a Co:Z SFTP server on a z/OS IBM Mainframe.

Note: This requires Chilkat v9.5.0.76 or greater.

Chilkat Python Downloads

Python Module for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

import sys
import chilkat

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

sftp = chilkat.CkSFtp()

# Connect to the SSH server.  
hostname = "sftp.example.com"
port = 22
success = sftp.Connect(hostname,port)
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

success = sftp.AuthenticatePw("myLogin","myPassword")
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

success = sftp.InitializeSftp()
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# To download a binary file from the Co:Z SFTP server, 
# we must switch to binary mode in the following unconventional way.
# We pretend to fetch a directory listing for "/+mode=binary"
# This has the effect of putting the server in binary mode for transfers.
handle = sftp.openDir("/+mode=binary")
if (sftp.get_LastMethodSuccess() != True):
    print(sftp.lastErrorText())
    sys.exit()

# Download the "directory listing" (but it's not actually a directory listing, and we'll just discard it.)
# dirListing is a CkSFtpDir
dirListing = sftp.ReadDir(handle)
if (sftp.get_LastMethodSuccess() != True):
    print(sftp.lastErrorText())
    sys.exit()

# Close the directory handle:
success = sftp.CloseHandle(handle)
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

# Download the binary file:
localFilePath = "c:/temp/test.zip"
remoteFilePath = "test.zip"
success = sftp.DownloadFileByName(remoteFilePath,localFilePath)
if (success != True):
    print(sftp.lastErrorText())
    sys.exit()

print("Success.")

 

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