How Can I Efficiently Perform SCP File Transfer in Python?

SCP File Transfer in Python

The question seeks an elegant and efficient approach to performing SCP file transfer in Python. The commonly used os.system call, while functional, falls short in terms of platform compatibility and flexibility in handling authentication.

The solution lies in utilizing the Python scp module for Paramiko. This module seamlessly integrates with Paramiko, offering an intuitive interface for SCP operations. Here's how it works:

<code class="python">import paramiko
from scp import SCPClient

def createSSHClient(server, port, user, password):
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(server, port, user, password)
    return client

ssh = createSSHClient(server, port, user, password)
scp = SCPClient(ssh.get_transport())

# Use scp.get() or scp.put() for file transfer</code>

With the SSH and SCP clients established, you can execute SCP operations with ease. Scp.get() retrieves a remote file, while scp.put() transfers a file from your local system to a remote location.

This approach simplifies SCP file transfer in Python, providing a flexible and secure solution that can adapt to different scenarios, such as using SSH keys or passwords for authentication.

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