all Python 3Byte sequencesfunction

bytearray.extend

bytearray — mutating

Extend with bytes from an iterable in place.

Syntax

ba.extend(...)

It expects an iterable of ints in 0–255: bytes and bytearray work, a str does not — ba.extend('ab') fails, encode the text first. A single number is rejected too, since it is not iterable; use append for that.

Examples

ba = bytearray(b'ab')
ba.extend(b'cd')
print(ba)   # → bytearray(b'abcd')

See also

Common errors

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