/
ssmih
/
Python
Обзор
Документация
Войти
/
ssmih
/
Python
Код
Запросы
0
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
conversions/binary_to_hexadecimal.py
66 строк
2 KB
Caeden Perelli-Harris
refactor: Indent ... for visual purposes (#7744)
27 окт 2022, 20:42
Не верифицирован
27 окт 2022, 20:42
9bba42e
Код
Авторство
О чём код?
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", } def bin_to_hexadecimal(binary_str: str) -> str: """ Converting a binary string into hexadecimal using Grouping Method >>> bin_to_hexadecimal('101011111') '0x15f' >>> bin_to_hexadecimal(' 1010 ') '0x0a' >>> bin_to_hexadecimal('-11101') '-0x1d' >>> bin_to_hexadecimal('a') Traceback (most recent call last): ... ValueError: Non-binary value was passed to the function >>> bin_to_hexadecimal('') Traceback (most recent call last): ... ValueError: Empty string was passed to the function """ # 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__": from doctest import testmod testmod()