Take nth bytes

Category: Data format

Status: Registered and callable in the CyberChef 11.3.0 compatibility inventory.

Input / output: byteArray → byteArray

What it does

Takes every nth byte starting with a given byte.

Note

Status here means the operation name is implemented and callable. It does not by itself promise byte-for-byte parity for every upstream option. See Compatibility and current status for the verified scope and known boundaries.

Arguments and options

Arguments are positional. Keep their order when using bake() or Pipeline.then().

Index	Name	UI type	PyChef default	Accepted values / format
`0`	Take every	`number`	`4`	A Python integer or floating-point value
`1`	Starting at	`number`	`0`	A Python integer or floating-point value
`2`	Apply to each line	`boolean`	`False`	`True` or `False`

Recipe template

Important

This is a call template built from the documented defaults. Replace placeholder values such as empty keys, paths, patterns, or lookup data before running it.

from pychef import bake

input_value = b"example"
args = [4, 0, False]
result = bake(input_value, [{"op": 'Take nth bytes', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = [4, 0, False]
transform = Pipeline().then('Take nth bytes', *args)
result = transform(b"example")

Dedicated operation module

The registered entry point lives in pychef.operations.by_operation.take_nth_bytes. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.take_nth_bytes import run

result = run(b"example", tuple([4, 0, False]))

pychef.operations.by_operation.take_nth_bytes.run(value, args)

Run this operation using its shared internal implementation.

Parameters:

value (str | bytes)
args (Sequence[Any])

Return type:

str | bytes