Are you tired of reading lengthy books that take up much of your time? Do you wish to get a summary of the main points without having to go through the entire book? Well, look no further because we have the solution for you. This article will discuss creating a book summarizer in Python using OpenAI’s GPT-3.5 in just 10 minutes.
Learn More: How To Use ChatGPT API In Python
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Steps on How to Create a Book Summarizer Using Python
- Setting up the Environment
To begin with, we will be using Google Colab for this purpose. Generally, the books we download are in pdf format, and for this purpose, we will install the PyPDF2 library. Besides this, we will use OpenAI’s GPT-3.5 for the task at hand, and to query it, we will use OpenAI APIs. Let’s install the required libraries:
!pip install openai PyPDF2 - Initializing Libraries
After installing the required libraries, let’s import them and initialize the local variables. We will also need to specify the location of the pdf file and add our OpenAI API key.
import openai import PyPDF2 import os import pandas as pd import time filepath= "<LOCATION OF YOUR PDF FILE>" openai.api_key = "<YOUR OPENAI API KEY>" - Setup for Querying the API
Now we will create a function for querying the GPT-3.5 Turbo model:
def get_completion(prompt, model="gpt-3.5-turbo"): messages = [{"role": "user", "content": prompt}] response = openai.ChatCompletion.create( model=model, messages=messages, temperature=0, # this is the degree of randomness of the model's output ) return response.choices[0].message["content"] - Reading the PDF
Because OpenAI has a limit on the input prompt size, we would like to send the data to be summarized in parts. There can be multiple ways to split the text. For the sake of simplicity, we will divide the whole book on the basis of pages. A better strategy will be to split it on the basis of paragraphs. However, it will increase the number of API calls increasing the overall time.
We will store each page in a list and then summarize it.
# creating a pdf file object pdfFileObject = open(filepath, 'rb') # creating a pdf reader object pdfReader = PyPDF2.PdfReader(pdfFileObject) text=[] summary=' ' #Storing the pages in a list for i in range(0,len(pdfReader.pages)): # creating a page object pageObj = pdfReader.pages[i].extract_text() pageObj= pageObj.replace('\t\r','') pageObj= pageObj.replace('\xa0','') # extracting text from page text.append(pageObj) - Prompting
Now we will start prompting. This is a matter of experiment to figure out the best prompt. However, there are a few basic guidelines on how to do it efficiently. In some upcoming articles, we will discuss the art of prompting in more detail. You can use the prompt for now, which has worked well for me. You can also play around with it:
for i in range(len(text)): prompt =f""" Your task is to extract relevant information from a text on the page of a book. This information will be used to create a book summary. Extract relevant information from the following text, which is delimited with triple backticks.\ Be sure to preserve the important details. Text: ```{text[i]}``` """ try: response = get_completion(prompt) except: response = get_completion(prompt) print(response) summary= summary+' ' +response +'\n\n' result.append(response) time.sleep(19) #You can query the model only 3 times in a minute for free, so we need to put some delay - Saving the Summary
Finally, we will save the summary we have obtained in a text file:
with open('summary.txt', 'w') as out: out.write(summary)
Advantages
- Creating a book summarizer using Python in OpenAI’s GPT 3.5 keeps all the useful information and compresses the document by ~75%. To make it shorter, you can add that clause to the prompt. For example, you can ask it to extract helpful information within 30 or 40 words. Overall, it is still a good way to summarize the text for personal use.
- Because we have not used the ‘summarize’ word but asked it to ‘extract’ the key information, it generally covers everything.
Learn More: Comprehensive Guide to Text Summarization using Deep Learning in Python
Disadvantages
- It takes a lot of time to summarize the text. Summarizing a 300-page book will take around 100 minutes. However, you can improve it by getting a more than 1-page summary in each query.
- Each response of the API starts with ‘This page says…’ or ‘The text talks about…’. Thus, one may have to clean the text obtained thoroughly.
Conclusion
Thus, creating a book summarizer in Python with GPT-3.5 API is a quick and efficient way to summarize lengthy books. Although it does have a few disadvantages, like taking time and requiring a basic cleaning of the text, the advantages outweigh them. With this approach, you can extract all the essential information from the book and compress it into a summary that can be read quickly. Hence, making it an excellent tool for students and avid readers alike. So, go ahead and try it out for yourself and make your reading experience more efficient and enjoyable.
Also Read: What is ChatGPT? Everything You Need to Know
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