Write a program that can calculate the average word length of any text file.

제가 만든 코드는

infileName = input("Enter file name: ")
infile = open(infileName, "r")

total_word_length = 0
total_words = 0

for line in infile:
    words = line.split()
    for word in words:
        total_word_length += len(word)
        total_words += 1

infile.close()

average_word_length = total_word_length / total_words
print(average_word_length)

이건데요...any file을 불러올때 저렇게 해도 되는건가요? spyder에 돌려봤는데 아예 답이 안나와서 여기에 물어봅니다