A fast bencode implementation in Cython supports both Python2 & Python3 .

pip install bencoder.pyx

from bencoder import bencode, bdecode, bdecode2

assert bencode("WWWWWW") == b'6:WWWWWW'
assert bencode(233) == b'i233e'

with open("debian-8.3.0-amd64-netinst.iso.torrent", "rb") as f:
    torrent = bdecode(f.read())
    print(torrent['announce'])

decoded, length = bdecode2(b'6:WWWWWWi233e')
assert decoded == b'WWWWWW'
assert length == 8

• Add support for Python 3.11

• Add support for Python 3.9 & 3.10
• Drop support for Python 2
• Build wheels for musl & aarch64

• Add support for Python 3.8
• Drop support for Python 3.4

• Use built-in dict instead of OrderedDict on Python >= 3.7
• Drop support for Python 3.3
• Fix bytes parsing when used with python-future #41

• Drop support for Python 2.6
• Performance boost for bencode method. #7

• Add bdecode2 method. #6

• Performance Improvement
• Fix package metainfo #3

• Support encode large int

• Use OrderedDict instaed of dict
• Support encoding subclasses of dict