Python guessing game : IndexError: range object index out of range

Question

I created a game wherein I select a number from 1 to 100, and the computer guesses it. However I get IndexError when i'm selecting numbers below 6. why is this happening?.

Here is my code :

print("Helllo user, select a number from 1-100 in your mind and i will try to guess it...")

list_nums = range(1,101)
counter = 0

while True :
    mid_element = list_nums[int(len(list_nums)/2)-1]
    print(" Is your selected number {}".format(mid_element))
    counter = counter + 1
    response = str(input("is it too high or too low..? : "))
    try:
        if response == "too low":
            list_nums = list_nums[int(len(list_nums)/2):int(len(list_nums))]
            mid_element = list_nums[int(len(list_nums)/2)]

        elif response == "too high":
            list_nums = list_nums[1:int(len(list_nums)/2)]
            mid_element = list_nums[int(len(list_nums)/2)]

        elif response == "correct":
            print("Perfect i finally guessed it. Your number is {}\n".format(mid_element))
            break
    except:
        print("Invalid entry..Try again")
        continue

print("\nI guessed it in {} attempts".format(counter))

Answer 1

Change line

list_nums = list_nums[1: int(len(list_nums)/2)]

to:

list_nums = list_nums[0: int(len(list_nums)/2)]

Because, list index starts at zero.

Or:

list_nums = list_nums[: int(len(list_nums)/2)]

Because, Python knows list starts at zero.