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La méthode bytearray() retourne un objet bytearray, qui est un tableau de bytes donné.

La syntaxe de la méthode bytearray() est :

bytearray([source[, encoding[, errors]]])

La méthode bytearray() retourne un objet bytearray, qui est une séquence d'entiers modifiables (peut être modifiée), avec une plage de 0 <= x <256.

Si vous souhaitez utiliser une version immuable, veuillez utiliserbytes()méthode.

bytearray() possède trois paramètres optionnels :

source (optional) -The source used to initialize the byte array.
encoding (optional) -If the source is a string, it is the encoding of the string.
errors (optional) -If the source is a string, the action taken when the encoding conversion fails (more information:String encoding)

The bytearray can be initialized using the source parameter in the following ways:

Different source parameters
Type	Description
String	When converting a string to bytes using str.encode(), you must also provideencoding and optionalerrors
Integer	Create an array that provides size, and all arrays are initialized to null
Object	The read-only buffer of the object will be used to initialize the byte array
Iterable	Create an array of size equal to the count of the iterable, and initialize it with the elements of the iterable. It must be 0 <= x <256Integer iterable between
No source (arguments)	Create an array of size 0.

The bytearray() method returns a byte array of given size and initial value.

Example

string = "Python is interesting."
# Encoding as “utf-8” string
arr = bytearray(string, 'utf-8')
print(arr)

When running this program, the output is:

bytearray(b'Python is interesting.')

Example

size =　5
arr = bytearray(size)
print(arr)

When running this program, the output is:

bytearray(b'\x00\x00\x00\x00\x00')

Example

rList = [1,　2,　3,　4,　5]
arr = bytearray(rList)
print(arr)

When running this program, the output is:

bytearray(b'\x01\x02\x03\x04\x05')