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54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
"""
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* Author: Bama Charan Chhandogi (https://github.com/BamaCharanChhandogi)
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* Description: Convert a Octal number to Binary.
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References for better understanding:
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https://en.wikipedia.org/wiki/Binary_number
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https://en.wikipedia.org/wiki/Octal
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"""
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def octal_to_binary(octal_number: str) -> str:
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"""
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ValueError: String to the function
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>>> oct_to_decimal("Av")
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Traceback (most recent call last):
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...
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ValueError: Non-octal value was passed to the function
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>>> oct_to_decimal("90")
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Traceback (most recent call last):
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...
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ValueError: Special Character was passed to the function
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>>> oct_to_decimal("#$")
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Traceback (most recent call last):
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...
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ValueError: Empty String was passed to the function
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>>> oct_to_decimal("")
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...
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ValueError: octal value was passed to the function
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>>> oct_to_decimal("17")
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001111
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>>> oct_to_decimal("7")
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111
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"""
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binary_number = ""
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octal_digits = "01234567"
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for digit in octal_number:
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if digit not in octal_digits:
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raise ValueError("Invalid octal digit")
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binary_digit = ""
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value = int(digit)
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for _ in range(3):
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binary_digit = str(value % 2) + binary_digit
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value //= 2
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binary_number += binary_digit
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return binary_number
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if __name__ == "__main__":
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import doctest
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doctest.testmod() |