Data Transfer

Warning

- Please DO NOT transfer any sensitive data using the following methods.

To build on the previous client/server example, we can transfer file data from one machine to another.

Downloading Files

1. Use the -l option to create a server to host the file:

Unix

pync -l localhost 8000 < file.in

Windows

py -m pync -l localhost 8000 < file.in

Python

# server.py
import pync

# Be sure to open files in binary mode
# for the pync function.
with open('file.in', 'rb') as f:
    pync.run('-l localhost 8000', stdin=f)

2. On a separate console, connect to the server to download the file:

Unix

pync localhost 8000 > file.out

Windows

py -m pync localhost 8000 > file.out

Python

# client.py
import pync

# Be sure to open files in binary mode
# for the pync function.
with open('file.out', 'wb') as f:
    pync.run('localhost 8000', stdout=f)

During the file transfer, there won’t be any progress indication. The connection will close automatically after the file has been transferred.

Uploading Files

You can also upload files by swapping the client/server roles.

1. Create a server to download the file data:

Unix

pync -l localhost 8000 > file.out

Windows

py -m pync -l localhost 8000 > file.out

Python

# server.py
import pync

# Be sure to open files in binary mode
# for the pync function.
with open('file.out', 'wb') as f:
    pync.run('-l localhost 8000', stdout=f)

2. On a separate console, connect to the server to upload the file:

Unix

pync localhost 8000 < file.in

Windows

py -m pync localhost 8000 < file.in

Python

# client.py
import pync

# Be sure to open files in binary mode
# for the pync function.
with open('file.in', 'rb') as f:
    pync.run('localhost 8000', stdin=f)

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SEE ALSO:

• -l: Listen mode, for inbound connects