Python: memoryview() function

Last update on August 19 2022 21:50:45 (UTC/GMT +8 hours)

memoryview() function

The memoryview() function is used to get a memory view object from a specified object.

Version:

(Python 3.2.5)

Syntax:

memoryview(obj)

Parameter:

Name	Description	Required / Optional
obj	A memoryview that references obj. obj must support the buffer protocol. Built-in objects that support the buffer protocol include bytes and bytearray.	Required

Return value:

A memory view object of the given object.

Example: Python memoryview() function

#random bytearray
randomByteArray = bytearray('xyz', 'utf-8')

a = memoryview(randomByteArray)

# access memory view's zeroth index
print(a[0])

# create byte from memory view
print(bytes(a[0:4]))

# create list from memory view
print(list(a[0:6]))

Output:

120
b'xyz'
[120, 121, 122]

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