Bitwise Operators In Python Part 2

Lecture 26:- Bitwise Operators In Python Part 2

here's the continuation of the explanation of bitwise operators in Python:

1. Bitwise Zero-fill Right Shift: >>> The >>> operator is similar to the >> operator, but it fills the vacant leftmost positions with zeros, regardless of the sign bit.

Example:

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a = -10     # Binary: 1111 1111 1111 1111 1111 1111 1111 0110 (32-bit representation) result = a >>> 2 print(result)   # Output: 1073741821 (Binary: 0011 1111 1111 1111 1111 1111 1111 1011)

Note: The >>> operator is not available in Python, unlike other languages like Java, JavaScript, etc. In Python, right shift operations using >> maintain the sign bit (arithmetic shift) for signed integers.

1. Bitwise Assignment Operators: &=, |=, ^=, <<=, >>= Python provides bitwise assignment operators that combine the bitwise operations with assignment. These operators modify the value of the left operand with the result of the corresponding bitwise operation.

Example:

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a = 10     # Binary: 1010 b = 7      # Binary: 0111 a &= b     # Equivalent to: a = a & b print(a)   # Output: 2 (Binary: 0010) b |= a     # Equivalent to: b = b | a print(b)   # Output: 3 (Binary: 0011) a <<= 2    # Equivalent to: a = a << 2 print(a)   # Output: 8 (Binary: 1000) b >>= 1    # Equivalent to: b = b >> 1 print(b)   # Output: 1 (Binary: 0001)

These bitwise assignment operators are a shorthand way of performing a bitwise operation and assigning the result back to the same variable.

Bitwise operators are less commonly used than arithmetic and logical operators in most general-purpose Python programming. However, they become essential in specific scenarios like low-level programming, data encryption, and bit manipulation tasks, where working at the bit level is required. It's crucial to understand their behavior and use them carefully, as improper usage can lead to unexpected results.