Bits 'n' Pieces

A BitTorrent client written in Python. I followed the specification presented here.

Features:

• Bencode encoding and decoding
• Parse torrent files
• Communicate with trackers
• Peer communication protocol
• Simple file download strategy: divide data into small temporary files and concatenate them when the download is over

Installation and Usage:

Note: you need to have python 3.7+ installed since the project uses asyncio features only available since 3.7.

Install the bitsnpieces package using the setup.py file. For example on Linux:

$ sudo python3.7 setup.py install

To run, invoke the bitsnpieces command. You should see the following output:

usage: bitsnpieces [-h] [--path PATH] torrent
bitsnpieces: error: the following arguments are required: torrent

You can view all the options using bitsnpieces -h:

usage: bitsnpieces [-h] [--path PATH] torrent

Bits 'n' Pieces v0.1.1

positional arguments:
  torrent      The metainfo file path (.torrent)

optional arguments:
  -h, --help   show this help message and exit
  --path PATH  The download directory path, defaults to './downloads'

Technical Details:

• Used python 3.7 asyncio features to stop I/O blocking.
• Wrote unit tests for each module.