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tftp

A pure-Python TFTP client, server, relay and capture decoder for IPv4 and IPv6 that implements the whole of modern TFTP: RFC 1350, the option extension (RFC 2347) with blksize, timeout, tsize and windowsize, plus utimeout, block-number rollover and netascii. One event-loop thread serves any number of transfers, each answered from the address the client used, and the transfer engine is tested over a simulated lossy link.

Installation

pip install tftp            # library
pip install "tftp[cli]"     # plus the pytftp command
Extra Adds Needed for
cli duho the pytftp command and python -m tftp
path pathapi, pathapi-uri TFTPPath and tftp:// URLs as uripath paths

30-second tour

import tftp

# Download with large blocks and an RFC 7440 window.
client = tftp.TFTPClient("192.0.2.1", blksize=1428, windowsize=16)
result = client.download("pxelinux.0", "pxelinux.0")
print(result.bytes, result.throughput, result.negotiated)

# Serve a directory on IPv6 and IPv4, accepting uploads.
with tftp.TFTPServer("/srv/tftp", writable=True) as server:
    server.serve_forever()

pytftp get 192.0.2.1 pxelinux.0 -b 1428 -w 16
pytftp serve /srv/tftp --write --json

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