hi in my code, i use dict(a) to make to "a" into a dictionary , "a" comes from user input, so my program does not know in the first place. Then say , it becomes
a = { '-A' : 'value1' , '-B' : "value2" , "-C" : "value3" , '-D' : 'value4' } somewhere next in my code, i will check for these..: 1) -A and -B cannot exist together 2) -A and -C cannot exist together 3) -A and -B and -D cannot exist together 4) and lots of other combinations to check for.... how can i efficiently check for the above? At first as i do simple checks , i use if and else. But as i began to check for more combinatoiuns, it gets messy.... thanks. -- http://mail.python.org/mailman/listinfo/python-list