Write a function named replace_at_index that takes a string and an integer. The function should return a new string that is the same as the old string, EXCEPT with a dash in place of whatever character was at the index indicated by the integer. Call your function on the word eggplant and the index 3

def replace_at_index(str, number):

   new = str.replace(str[number], "-")

   return new

print(replace_at_index("eggplant", 3))

Explanation:

- Create a function called replace_at_index that takes a string and an integer

- Initialize a new variable called new, that will hold the new string

- Replace the character at given index with dash using replace function, it takes two parameters: the first is the character we want to replace, the second is the new character.

- Return the new string

- Call the function with the required inputs

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