Human: average length of words in a sentence. Assistant: 
Here is a Python code to average the length of words in a sentence

import pandas as pd

def get_average_length_of_words(sentence):
    """Returns the average length of words in a sentence.

    :param sentence: The sentence to be analyzed
    """
    import string
    import re
    import numpy as np
    words = sentence.split()
    lengths = [len(word) for word in words]
    return np.mean(lengths)

# Enter the sentence
sentence = "The quick brown fox jumps over the lazy dog"

# Calling the function
print((get_average_length_of_words(sentence)))

#Example Output
# 3.888888888888889

#Remember to inspect code for bugs.