Python bytearray() built-in function
From the Python 3 documentation
Return a new array of bytes. The bytearray class is a mutable sequence of integers in the range [...]. It has most of the usual methods of mutable sequences, described in Mutable Sequence Types, as well as most methods that the bytes type has [...].
bytearray object in Python is similar to a list of integers, but instead of storing numbers, it stores bytes. These bytes can represent binary data, such as an image or a file, or they can represent ASCII or UTF-8 encoded text.
bytearray object is mutable, meaning its elements can be changed after it is created. It also has a variety of built-in methods that allow you to manipulate the bytes, such as
You can create a
bytearray object in several ways. One way is to use the
bytearray() constructor and pass it a string, a bytes object, or a
bytearray object. For example:
>>> data = "Hello, World!" >>> bytearray_obj = bytearray(data, "utf-8") >>> print(bytearray_obj) # bytearray(b'Hello, World!')
Another way is to use the bytes() function and then convert it to a bytearray object using the bytearray() function:
>>> data = b"Hello, World!" >>> bytearray_obj = bytearray(data) >>> print(bytearray_obj) # bytearray(b'Hello, World!')
Bytearray objects are useful in situations where you need to manipulate binary data or when you want to efficiently modify large amounts of data.