python - 每隔n秒在for循环中打印一些东西

I have a for loop that iterates over a number and performs some simple calculations. I am trying to figure out how to print out ( or log to file) the current value of 'val' every .5 to 1 second with out having to pause or sleep during the loop. Here is a super simple exampleI have a for loop that iterates over a number a