Count of numbers (in range [1,input_num]) which don't have 'exclude'

number_counting.py

#!/usr/bin/python

def number_counting(input_num, exclude):
    '''
    Returns the count of numbers (in range [1,input_num]) which don't
    have 'exclude' among their constituent digits.
    '''
    if type(input_num) == int and type(exclude) == int:
        exclude = str(exclude)
        if len(exclude) == 1:
            count = 0
            for number in range(1, input_num+1):
                temp = str(number)
                if exclude not in temp:
                    count += 1
            return count
        else:
            return "Argument 'exclude' should be a digit!"
    else:
        return "Argument 'input_num' and/or 'exclude' should be an integer!"

if __name__ == '__main__':
    print number_counting(1000, 7)