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octal_to_binary.py
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"""
* 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
"""
defoctal_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
"""
ifnotoctal_number:
raiseValueError("Empty string was passed to the function")
binary_number=""
octal_digits="01234567"
fordigitinoctal_number:
ifdigitnotinoctal_digits:
raiseValueError("Non-octal value was passed to the function")
binary_digit=""
value=int(digit)
for_inrange(3):
binary_digit=str(value%2) +binary_digit
value//=2
binary_number+=binary_digit
returnbinary_number
if__name__=="__main__":
importdoctest
doctest.testmod()
