Number of words using Python code

In this code, we define a function count_words() that takes a sentence as input and counts the number of words in it.

The function splits the sentence into words using the split() method, which splits the sentence based on whitespace. It returns the length of the resulting list of words using the len() function.

The user is prompted to enter a sentence. The code then calls the count_words() function with the input sentence and assigns the result to the variable word_count.

Finally, the program prints the number of words in the sentence.

You can run this code and input a sentence to get the number of words in it.