Python bin()

The bin() method in Python converts an integer number to a binary string and returns it.

Syntax

bin(number)

Parameters

• number - an integer number, which we want to convert to binary.

Return Value

The bin() function returns a string, which represents the binary version of the given integer. The string starts with "0b" which indicates that the result is a binary string.

Example

x = 5
print(bin(x))  # Output: 0b101

In the above example, we have an integer 5. We then pass this number to the bin() function, which returns a binary string "0b101".

Note that the result always starts with "0b". This is a prefix that indicates that the result is a binary string.

Implementation Details

Internally, the bin() function converts the integer to binary using the built-in bin() function. It then removes the prefix "0b" by slicing the string.

Here's an example implementation of the bin() function:

def bin(number):
    binary = __builtins__.bin(number)
    return binary[2:]

This implementation works by calling the built-in bin() function, which returns a binary string with the prefix "0b". We then slice the string to remove the prefix and return the result.

Conclusion

The bin() method in Python is a useful function for converting integer numbers to binary strings. The function returns a string with the prefix "0b", which indicates that the result is a binary string. The bin() function is useful for applications that require working with binary data, such as bitwise operations, encoding, and cryptography.