martinandersson82

def menu():
    '''
    function holding the menu
    Returns: string
    '''
    return (
    '''
----------------------------------------------------------
Welcome to the Number Base converter!
The system will ask you for:

martinandersson82

def menu():
    '''
    function holding the menu
    Returns: string
    '''
    return (
    '''
----------------------------------------------------------
Welcome to the Number Base converter!
The system will ask you for:

martinandersson82

def validate_bin(check_number):
    '''
    function that checks if the input consists of either 0 or 1.
    Binary numbers can only be 0 or 1, so we need to validate this
    before doing any math on it.

    returns: True/False
    '''
    check_list = [int(item) for item in set(list(check_number))]

martinandersson82

def validate_input(input_number):
    '''
    function that checks if the input consists of legal characters.
    Binary numbers can only be 0 or 1, so we need to validate this
    before doing any math on it.

    returns: True/False
    '''
    legal_char = '0123456789abcdef'
    for number in input_number:

martinandersson82

def validator(input_number,input_base,output_base):
    if validate_input(input_number) and input_base.isdigit() and output_base.isdigit():

        if int(input_base) == 2:
            if not input_number.isdigit():
                print ('>>> ERROR: Input is not a digit. Binary Numbers contain 0s and 1s only. <<<')
                return False

            if not validate_bin(input_number):
                print ('>>> ERROR: Invalid Binary Number. Must contain 0s or 1s <<<')

martinandersson82

def convert_number_system(input_number, input_base, output_base):
    '''
    function that calculates numbers from one base to the other

    returns: converted number
    '''

    #list that holds the numbers to output in the end
    remainder_list = []

martinandersson82

# if the user asked for a Hexadesimal output, we need to convert
# any number from 10 and up.
if int(output_base) == 16:
    hex_dict = {'10' : 'a' , '11' : 'b' , '12' : 'c' , '13' : 'd' , '14' : 'e' , '15' : 'f'}

    #loop through remainder_list and convert 10+ to letters.
    for index, each in enumerate(remainder_list):
        for key, value in hex_dict.items():
            if each == key:
                remainder_list[index] = value

martinandersson82

def execute_converter():
    '''
    procedure that interacts with the user and sends it to get converted.
    '''

    #proceed set to y/yes to initiate the while loop.
    proceed = 'y'

    while proceed.lower() == 'y':
        valid_input = False

martinandersson82

my_list = ['a' , 'b' , 'n' , 'x' , 1 , 2 , 3 , 'a' , 33.3 , 'n' , 'b']
number_list = []
string_list = []
for item in my_list:
    print (f'current item: {item}, Type: {type(item)}')
    if not isinstance(item,str):
        number_list.append(item)
    else:
        string_list.append(item)
my_list = string_list

martinandersson82

def get_numbers(input_char):
    if not isinstance(input_char,str):
        return True
    return False

my_list = [1,2,3,'a','b','c']
check_list = filter(get_numbers, my_list)
for items in check_list:
    print(items)