bytearray() function is used to find the bytearray object in Python for the given inputs. The bytearray object is the mutable sequence of integers in the range of 0 <=x < 256. Where mutable sequence means the sequence that can be change. For finding Immutable Bytes Object use bytes() function.
bytearray() function is a part of Python Built-in Functions (check list)
Syntax of bytearray() Function
The syntax of bytearray() function in Python is:
1 | bytearray([source[, encoding[, errors]]]) |
Parameters of bytearray() Function in Python
source – Where source is the source who initialize the array of bytes.encoding – Where encoding is the encoding of the string if the source is a string.errors – Where errors is the action we want to perform when string encoding will fail. We use errors if source is a string.All three parameters are optional.We can use string, integer and objects etc as a source of bytearray().| Type | Description |
String | Converts the string to bytes using str.encode() Must also provide encoding and optionally errors |
Integer | Creates an array of provided size, all initialized to null |
Object | Read-only buffer of the object will be used to initialize the byte array |
Iterable | Creates an array of size equal to the iterable count and initialized to the iterable elements Must be iterable of integers between 0 <= x < 256 |
| No source (arguments) | Creates an array of size 0. |
Compatibility
bytearray() function is available and compatible with both Python 2.x and 3.x.
Return Value of bytearray() Function in Python
bytearray() function returns a bytearray object which is a mutable sequence of integers(that can be change) in the range of 0 <=x < 256 for the given inputs.For returning an immutable sequence use the bytes() function of Python built-in Library.
Python bytearray() Function Example 1
Find array of bytes from a string.
1 2 3 4 5 | stringValue = "This is my Test String." # string value passed to bytearray with utf-8 encoding parameter myArray = bytearray(stringValue, 'utf-8') print(myArray) |
Output:
bytearray(b'This is my Test String.')
Python bytearray() Function Example 2
Find array of bytes of given integer size.
1 2 3 4 | integerValue = 7 myArray = bytearray(integerValue) print(myArray) |
Output:
bytearray(b'\x00\x00\x00\x00\x00\x00\x00')
Python bytearray() Function Example 3
Find array of bytes from an iterable list.
1 2 3 4 | elementList = [5,6,7,8] myArray = bytearray(elementList) print(myArray) |
Output:
bytearray(b'\x05\x06\x07\x08')
