The bytearray() function in Python creates a new mutable bytearray object. It can take a string, an iterable, or an integer as an argument and convert it into a byte array object, which allows for mutable modifications of bytes within the array.
Parameter Values
| Parameter | Description |
|---|---|
| source | Optional. A source to initialize the array. It can be an iterable, a buffer, a string, etc. |
| encoding | Optional. If the source is a string, this parameter specifies the encoding used to convert the string to bytes. |
| errors | Optional. If the source is a string, this parameter defines how encoding and decoding errors are handled. |
Return Values
The bytearray() function returns a mutable array of bytes.
How to Use bytearray() in Python
Returns a new array of bytes which is a mutable sequence of integers in the range 0 = x 256.= x 256.
byte_array = bytearray([65, 66, 67, 68])
print(byte_array) # bytearray(b'ABCD')Can also create an array of a specified size initialized with null bytes.
byte_array = bytearray(5)
print(byte_array) # bytearray(b'\x00\x00\x00\x00\x00')Accepts an iterable object as an argument to initialize the bytearray.
string = 'hello'
byte_array = bytearray(string, 'utf-8')
print(byte_array) # bytearray(b'hello')