Python - Convert Binary to Hexadecimal Example

In this source code example, we will write a code to convert a binary value to its hexadecimal equivalent in Python.

Python - Convert Binary to Hexadecimal Example

def bin_to_hexadecimal(binary_str: str) -> str: BITS_TO_HEX = { "0000": "0", "0001": "1", "0010": "2", "0011": "3", "0100": "4", "0101": "5", "0110": "6", "0111": "7", "1000": "8", "1001": "9", "1010": "a", "1011": "b", "1100": "c", "1101": "d", "1110": "e", "1111": "f", } # Sanitising parameter binary_str = str(binary_str).strip() # Exceptions if not binary_str: raise ValueError("Empty string was passed to the function") is_negative = binary_str[0] == "-" binary_str = binary_str[1:] if is_negative else binary_str if not all(char in "01" for char in binary_str): raise ValueError("Non-binary value was passed to the function") binary_str = ( "0" * (4 * (divmod(len(binary_str), 4)[0] + 1) - len(binary_str)) + binary_str ) hexadecimal = [] for x in range(0, len(binary_str), 4): hexadecimal.append(BITS_TO_HEX[binary_str[x : x + 4]]) hexadecimal_str = "0x" + "".join(hexadecimal) return "-" + hexadecimal_str if is_negative else hexadecimal_str if __name__ == "__main__": # Converting a binary string into hexadecimal using Grouping Method print(bin_to_hexadecimal('101011111')) print(bin_to_hexadecimal(' 1010 ')) print(bin_to_hexadecimal('-11101'))

Output:

0x15f 0x0a -0x1d


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