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XMODEM protocol implementation.

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XMODEM protocol implementation

Documentation available at http://packages.python.org/xmodem/

Python Package Index (PyPI) page is available at https://pypi-hypernode.com/pypi/xmodem

Usage

Create a function to get and put character data (to a serial line for example):

>>> from xmodem import XMODEM
>>> def getc(size, timeout=1):
...     return data or None
...
>>> def putc(data, timeout=1):
...     return size or None
...
>>> modem = XMODEM(getc, putc)

Now, to upload a file, use the send method:

>>> stream = open('/etc/fstab', 'rb')
>>> modem.send(stream)

To download a file, use the recv method:

>>> stream = open('output', 'wb')
>>> modem.recv(stream)

For more information, take a look at the documentation.

Changes

0.4.1
  • bugfix: re-transmit in send() on NAK or timeout, previously re-transmissions (wrongly) occurred only on garbage bytes. PR #12.

0.4.0
  • enhancement: support for python 3 PR #8.

  • bugfix: CRC failures in XMODEM.recv() were not renegotiated correctly PR #11.

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