bit operations in python code example

Example 1: python bitwise operators

x << y
Returns x with the bits shifted to the left by y places (and new bits on the right-hand-side are zeros). This is the same as multiplying x by 2**y.
x >> y
Returns x with the bits shifted to the right by y places. This is the same as //'ing x by 2**y.
x & y
Does a "bitwise and". Each bit of the output is 1 if the corresponding bit of x AND of y is 1, otherwise it's 0.
x | y
Does a "bitwise or". Each bit of the output is 0 if the corresponding bit of x AND of y is 0, otherwise it's 1.
~ x
Returns the complement of x - the number you get by switching each 1 for a 0 and each 0 for a 1. This is the same as -x - 1.
x ^ y
Does a "bitwise exclusive or". Each bit of the output is the same as the corresponding bit in x if that bit in y is 0, and it's the complement of the bit in x if that bit in y is 1.

Example 2: python bit

# Two's Complement binary for Positive Integers:

print(int('00100001', 2))

'''--------------------------------------------------------------------

The Operators:
x << y
Returns x with the bits shifted to the left by y places (and new bits 
on the right-hand-side are zeros). This is the same as multiplying x by 
2**y.

x >> y
Returns x with the bits shifted to the right by y places. 
This is the same as //'ing x by 2**y.

x & y
Does a "bitwise and". Each bit of the output is 1 if the corresponding 
bit of x AND of y is 1, otherwise it's 0.

x | y
Does a "bitwise or". Each bit of the output is 0 if the corresponding 
bit of x AND of y is 0, otherwise it's 1.

~ x
Returns the complement of x - the number you get by switching each 1 
for a 0 and each 0 for a 1. This is the same as -x - 1.

x ^ y
Does a "bitwise exclusive or". Each bit of the output is the same as 
the corresponding bit in x if that bit in y is 0, and it's the 
complement of the bit in x if that bit in y is 1.'''

Example 3: python bitwise operators methods

#PYTHON BITWISE OPERATORS
OPERATOR	DESCRIPTION	        SYNTAX  FUNCTION        IN-PLACE METHOD
&	        Bitwise AND	        a & b   and_(a, b)      __and__(self, other)
|	        Bitwise OR	        a | b   or_(a, b)       __or__(self, other)
^	        Bitwise XOR	        a ^ b   xor(a, b)       __xor__(self, other)
~           Bitwise NOT         ~ a     invert(a)       __invert__(self)
<<          Bitwise L shift     a << b  lshift(a, b)    __lshift__(self, other)
>>          Bitwise R shift     a >> b  rshift(a, b)    __irshift__(self, other)

Example 4: bitwise operators python

OPERATOR DESCRIPTION	      SYNTAX
&	     Bitwise AND          x & y
|	     Bitwise OR           x | y
~	     Bitwise NOT	      ~x
^	     Bitwise XOR	      x ^ y
>>		 Bitwise right shift  x>>
<<		 Bitwise left shift	  x<<

Example 5: data = a &b python

#!/usr/bin/python

a = 60            # 60 = 0011 1100 
b = 13            # 13 = 0000 1101 
c = 0

c = a & b;        # 12 = 0000 1100
print "Line 1 - Value of c is ", c

c = a | b;        # 61 = 0011 1101 
print "Line 2 - Value of c is ", c

c = a ^ b;        # 49 = 0011 0001
print "Line 3 - Value of c is ", c

c = ~a;           # -61 = 1100 0011
print "Line 4 - Value of c is ", c

c = a << 2;       # 240 = 1111 0000
print "Line 5 - Value of c is ", c

c = a >> 2;       # 15 = 0000 1111
print "Line 6 - Value of c is ", c