Converts a string to Brainfuck

brainfuck_converter.py

def string_process(s):
        
    cs = map(ord, '{0}'.format(s))
    
    clist = ''.join(['>' + c for c in 
        ['+' * n for n in 
            [(i-i%10)/10 for i in cs]]])

    cell_zero = ''.join(['<' * n for n in [len(cs)]]) + '-'
    
    dlist = ''.join(['>' + c + '.' for c in 
        ['+' * n for n in 
            [c-j for c,j in zip(cs, [(i-i%10) for i in cs])]]])

    counter_table = '++++++++++[{0}{1}]{2}'.format(clist, cell_zero, dlist)
    
    return counter_table

if __name__ == '__main__':

    print ''.join(string_process('Problem?'))