bundles / astropy 7.0.1 / astropy / io / fits / hdu / base / _ValidHDU / _compute_checksum

function

`astropy.io.fits.hdu.base:_ValidHDU._compute_checksum`

source: /astropy/io/fits/hdu/base.py :1451

Signature

def _compute_checksum ( self , data , sum32 = 0 )

Summary

Compute the ones-complement checksum of a sequence of bytes.

Parameters

data: a memory region to checksum
sum32: incremental checksum value from another region

Returns

: ones complement checksum

Aliases

astropy.io.fits.convenience._ValidHDU._compute_checksum