Is there any other way for the above question without using any package?
Sigiloso
Extract the words from the corpus by splitting the string using the method str. split(' '). We'll get a list containing all the words. Then declare a dictionary data structure and start a for loop to iterate over each word. In the loop, we use the error handling method. In try condition we try to add +1 to the value of the keyword, if there is no such word in a dictionary, it throws an error, taking us to except condition where we map the keyword to value 1. Instead of using the error handling method, we can use the if-else method, where we try to find whether the key is in a dictionary or not, if it is we increment the value by 1, else we map the key with value 1.