mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-12-28 06:00:17 +00:00
55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
|
"""
|
||
|
* Author: Bama Charan Chhandogi (https://github.com/BamaCharanChhandogi)
|
||
|
* Description: Convert a Octal number to Binary.
|
||
|
|
||
|
References for better understanding:
|
||
|
https://en.wikipedia.org/wiki/Binary_number
|
||
|
https://en.wikipedia.org/wiki/Octal
|
||
|
"""
|
||
|
|
||
|
|
||
|
def octal_to_binary(octal_number: str) -> str:
|
||
|
"""
|
||
|
Convert an Octal number to Binary.
|
||
|
|
||
|
>>> octal_to_binary("17")
|
||
|
'001111'
|
||
|
>>> octal_to_binary("7")
|
||
|
'111'
|
||
|
>>> octal_to_binary("Av")
|
||
|
Traceback (most recent call last):
|
||
|
...
|
||
|
ValueError: Non-octal value was passed to the function
|
||
|
>>> octal_to_binary("@#")
|
||
|
Traceback (most recent call last):
|
||
|
...
|
||
|
ValueError: Non-octal value was passed to the function
|
||
|
>>> octal_to_binary("")
|
||
|
Traceback (most recent call last):
|
||
|
...
|
||
|
ValueError: Empty string was passed to the function
|
||
|
"""
|
||
|
if not octal_number:
|
||
|
raise ValueError("Empty string was passed to the function")
|
||
|
|
||
|
binary_number = ""
|
||
|
octal_digits = "01234567"
|
||
|
for digit in octal_number:
|
||
|
if digit not in octal_digits:
|
||
|
raise ValueError("Non-octal value was passed to the function")
|
||
|
|
||
|
binary_digit = ""
|
||
|
value = int(digit)
|
||
|
for _ in range(3):
|
||
|
binary_digit = str(value % 2) + binary_digit
|
||
|
value //= 2
|
||
|
binary_number += binary_digit
|
||
|
|
||
|
return binary_number
|
||
|
|
||
|
|
||
|
if __name__ == "__main__":
|
||
|
import doctest
|
||
|
|
||
|
doctest.testmod()
|