“无”在打印命令的末尾打印

Question

def Tempurature(Lowest, Highest):
ok = False
while not ok:
    try:
       Input = int(input(print("\nEnter the Mid-Day tempurature for Day {}:".format(Counter))))
       if Input >= Lowest and Input <= Highest:
            ok = True
            return Input
       else:
            print ("Please enter a valid number between {} and {}".format(Lowest, Highest))
    except:
        print ("Please enter a number")

So this is my Function, I use it to input numbers into an array like so

Counter = int(1)
TempDay = array.array ("i", range(31))
TempDay[Counter] = (Tempurature(-90, 60))

However when I call up the function, the following prints

Enter the Mid-Day tempurature for Day 1:
None

Any solutions on how to get rid of the "None" print to make the input line at the ":" rather than at the end of the "None"?

Answer 1

Ditch the print call inside of your input function. input will automatically print anything inside of the input call.

Input = int(input("\nEnter the Mid-Day tempurature for Day {}:".format(Counter))))

The reason it's printing None is due to the print call; after its completion it returns None , and since input will happily print whatever you give it while blocking for input, it's printing the None as if you had intended to do that.

Answer 2

You are calling .format with a None argument.

The variable Counter is not available inside your function scope .

Also, you are actually calling input() on the return of print() , you need to pass in the string to input() .