How to work with binary data?

Question

Python

There is a sample such lines on Node.js

var header = {};
var offset = 0;
var flags = buf.readUInt8(offset); offset += 1;
header.PRF = (flags & parseInt('11000000', 2)) >> 6;

How to write the same in Python3?
What are the analogues of commands in python?
Which libraries to use: numpy, ctruct?
What can be read on this topic?

Answer 1

Which libraries to use: numpy, ctruct?

None, it's all done by means of the kernel.
There are even special binary constants

>>> 0b10101 & 0b11 == 1
True
>>>

Answer 2

1. ctypes
   
2. struct
   
3. Construct [githab] [docs] ( Construct3 )
   
4. numpy.recarray aka structured arrays
   

Answer 3

https://docs.python.org/3.1/library/struct.html