Python Bitwise Operators
March 31, 2019
| Operator Name | Operations | Result |
|---|---|---|
| Bitwise OR (|) | x | y | bitwise or of x and y |
| Bitwise XOR (^) | x ^ y | bitwise exclusive or of x and y |
| Bitwise AND (&) | x & y | bitwise and of x and y |
| Bitwise Left-shift (<<) | x << n | x shifted left by n bits |
| Bitwise Right-shift (>>) | x >> n | x shifted right by n bits |
| Bitwise ones Complement (~) | ~x | the bits of x inverted |
For the demo we are using Python 3.7.0 in our example. Now find the Python bitwise operators in detail.
Contents
1. Bitwise OR (|)
A bitwise OR (|) takes two equal-length binary representations and performs the logical OR operation on each pair of the corresponding bits. The result in each position is 0 if both bits are 0, while otherwise the result is 1.| | Operator | Result |
|---|---|
| 1 | 1 | 1 |
| 1 | 0 | 1 |
| 0 | 1 | 1 |
| 0 | 0 | 0 |
>>> 3 | 5 7 >>> bin(3) '0b11' >>> bin(5) '0b101' >>> bin(7) '0b111' >>> >>> 6 | 4 6 >>> bin(6) '0b110' >>> bin(4) '0b100' >>>
2. Bitwise XOR (^)
A bitwise XOR (^) takes two equal-length binary representations and performs the logical exclusive OR operation on each pair of the corresponding bits. The result in each position is 1 if only the first bit is 1 or only the second bit is 1, but will be 0 if both are 0 or both are 1.| ^ Operator | Result |
|---|---|
| 1 ^ 1 | 0 |
| 1 ^ 0 | 1 |
| 0 ^ 1 | 1 |
| 0 ^ 0 | 0 |
>>> 4 ^ 2 6 >>> bin(4) '0b100' >>> bin(2) '0b10' >>> bin(6) '0b110' >>> >>> 7 ^ 8 15 >>> bin(7) '0b111' >>> bin(8) '0b1000' >>> bin(15) '0b1111' >>>
3. Bitwise AND (&)
A bitwise AND (&) operator takes two equal-length binary representations and performs the logical AND operation on each pair of the corresponding bits. The result is equivalent to multiplying them.| & Operator | Result |
|---|---|
| 1 & 1 | 1 |
| 1 & 0 | 0 |
| 0 & 1 | 0 |
| 0 & 0 | 0 |
>>> 5 & 9 1 >>> bin(5) '0b101' >>> bin(9) '0b1001' >>> bin(1) '0b1' >>> >>> 7 & 3 3 >>> bin(7) '0b111' >>> bin(3) '0b11' >>>
4. Bitwise Left-shift (<<)
Bitwise Left-shift (<<) operator shifts the bits left by given number.x << n returns x with the bits shifted to the left by n places (and new bits on the right-hand-side are zeros). This is the same as multiplying x by pow(2, n).
Find the example.
>>> 5 << 2 20 >>> bin(5) '0b101' >>> bin(20) '0b10100' >>> >>> 12 << 6 768 >>> bin(12) '0b1100' >>> bin(768) '0b1100000000' >>>
5. Bitwise Right-shift (>>)
Bitwise Right-shift (>>) operator shifts the bits right by given number.x >> n returns x with the bits shifted to the right by n places. This is the same as dividing x by pow(2, n).
Find the example.
>>> 4 >> 2 1 >>> bin(4) '0b100' >>> bin(2) '0b10' >>> bin(1) '0b1' >>> >>> 13 >> 2 3 >>> bin(13) '0b1101' >>> bin(2) '0b10' >>> bin(3) '0b11' >>>
6. Bitwise ones Complement (~)
~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.
Find the example.
>>> 13 >> 2 3 >>> bin(13) '0b1101' >>> bin(2) '0b10' >>> bin(3) '0b11' >>>
References
Bitwise Operations on Integer TypesPython Bitwise Operators
Bitwise operation
