ConvertToHex.py

from ConvertToDec import convert_to_dec


'''
reverse_str is a function that takes a string s,
and returns it reversed, using a slicing method
'''
def reverse_str (s):
    return s [::-1]


'''
convert_remainder is a function that takes the remainder (int),
converts it to a hexadecimal notation, and returns it (string).
'''
def convert_remainder (remainder):
    coefficients = "0123456789abcdef"
    return coefficients [remainder]


'''
convert_dec_to_hex is a function that takes a string n
(containing a number in decimal notation), that
converts it to a hexadecimal notation, and that
returns it (as a string)
'''
def convert_dec_to_hex (n):
    converted_n = ""
    while True:
        result, remainder = divmod (int (n), 16)
        converted_n += convert_remainder (remainder)
        if result == 0:
            break
        n = result

    converted_n = reverse_str (converted_n)
    return converted_n


'''
convert_bin_to_hex is a function that takes a string b
(containing a binary number), converts it to hexadecimal,
and returns it (as a string)
'''
def convert_bin_to_hex (b):
    n = convert_to_dec (b, "bin")
    return convert_dec_to_hex (n)


'''
convert_to_hex is a function that takes a string n, and
a string called base. This function converts n in
hexadecimal depending on the string base.
It returns ultimately a string containing the hexadecimal
notation of n.
'''
def convert_to_hex (n, base):
    if base == "dec":
        return convert_dec_to_hex (n)
    elif base == "bin":
        return convert_bin_to_hex (n)
    elif base == "hex":
        return str (n)
    else:
        return "ERROR : NOT A SUPPORTED BASE YET. IT FUNCTIONS ONLY FOR bin/dec/hex BASES ONLY"


if __name__ == "__main__":
    print (convert_to_hex ("1988971", "dec"))
    print (convert_to_hex ("1ae867f987d", "hex") == "1ae867f987d")
    print (convert_to_hex ("100100101", "bin") == "125")