Skip to main content

Convert two's complement integer to gray code and vice versa

Project description


Gray code or reflected binary code (RBC) is an ordering of binary numbers such that two successive numbers only differ in one bit. In essence, this is an alternative to two's complement integers when it is useful to change only one bit between successive numbers.

This library implements functions to convert gray code to two's complement integer and vice versa.

See for copyright information. This library is licensed under the MIT license.

See for details and applications of gray codes.


$ python3 install

Or from PyPi:

$ pip3 install graycode


import graycode

for i in range(8):
    print(i, '{:03b}'.format(graycode.tc_to_gray_code(i)))


0 000
1 001
2 011
3 010
4 110
5 111
6 101
7 100

Reverse is also provided:




gen_gray_codes(n) produces all n bit gray codes:



[0, 1, 3, 2, 6, 7, 5, 4]

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

graycode-1.0.5.tar.gz (3.8 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page