Chat Bot in Python with ChatterBot Module

This post was written by Kenon Thompson on August 1, 2024

Step-by-Step Guide to Create Chatbot Using Python

Training the chatbot will help to improve its performance, giving it the ability to respond with a wider range of more relevant phrases. Building a ChatBot with Python is easier than you may initially think. Chatbots are extremely popular right now, as they bring many benefits to companies in terms of user experience.

• In this tutorial, you’ll start with an untrained chatbot that’ll showcase how quickly you can create an interactive chatbot using Python’s ChatterBot.
• Therefore, if we want to apply a neural network algorithm on the text, it is important that we convert it to numbers first.
• By using chatbots to collect vital information, you can quickly qualify your leads to identify ideal prospects who have a higher chance of converting into customers.
• Its versatility and an array of robust libraries make it the go-to language for chatbot creation.
• But remember that as the number of tokens we send to the model increases, the processing gets more expensive, and the response time is also longer.

This has been achieved by iterating over each pattern using a nested for loop and tokenizing it using nltk.word_tokenize. The words have been stored in data_X and the corresponding tag to it has been stored in data_Y. The next step is the usual one where we will import the relevant libraries, the significance of which will become evident as we proceed. This will allow us to access the files that are there in Google Drive. At the top of the page, you can press on the experience level for this Guided Project to view any knowledge prerequisites. For every level of Guided Project, your instructor will walk you through step-by-step.

How Does the Chatbot Python Work?

Just like every other recipe starts with a list of Ingredients, we will also proceed in a similar fashion. So, here you go with the ingredients needed for the python chatbot tutorial. Now, it’s time to move on to the second step of the algorithm that is used in building this chatbot application project. Chatterbot combines a spoken language data database with an artificial intelligence system to generate a response.

To learn more about these changes, you can refer to a detailed changelog, which is regularly updated. Intents and entities are basically the way we are going to decipher what the customer wants and how to give a good answer back to a customer. I initially thought I only need intents to give an answer without entities, but that leads to a lot of difficulty because you aren’t able to be granular in your responses to your customer. And without multi-label classification, where you are assigning multiple class labels to one user input (at the cost of accuracy), it’s hard to get personalized responses. Entities go a long way to make your intents just be intents, and personalize the user experience to the details of the user.

Open the project folder within VS Code, and open up the terminal. This file contains a list of conversations but the way this file need to be created or organized by saying simple row that is each conversation must be relied on the last conversation. You can continue conversing with the chatbot and quit the conversation once you are done, as shown in the image below. I am a final year undergraduate who loves to learn and write about technology. Natural language Processing (NLP) is a necessary part of artificial intelligence that employs natural language to facilitate human-machine interaction. Sometimes, the questions added are not related to available questions, and sometimes, some letters are forgotten to write in the chat.

This article has delved into the fundamental definition of chatbots and underscored their pivotal role in business operations. A ChatBot is essentially software that facilitates interaction between humans. When you train your chatbot with Python 3, extensive training data becomes crucial for enhancing its ability to respond effectively to user inputs. This skill path will take you from complete Python beginner to coding your own AI chatbot. Keep in mind, in reality, this would also require some backend programming, where the code takes the user’s information, accesses the database, and makes the necessary changes.

This token is used to identify each client, and each message sent by clients connected to or web server is queued in a Redis channel (message_chanel), identified by the token. The cache is initialized with a rejson client, and the method get_chat_history takes in a token to get the chat history for that token, from Redis. The GPT class is initialized with the Huggingface model url, authentication header, and predefined payload. But the payload input is a dynamic field that is provided by the query method and updated before we send a request to the Huggingface endpoint. In server.src.socket.utils.py update the get_token function to check if the token exists in the Redis instance. If it does then we return the token, which means that the socket connection is valid.

Recall that we are sending text data over WebSockets, but our chat data needs to hold more information than just the text. We need to timestamp when the chat was sent, create an ID for each message, and collect data about the chat session, then store this data in a JSON format. Our application currently does not store any state, and there is no way to identify users or store and retrieve chat data.

Let’s now see how Python plays a crucial role in the creation of these chatbots. But where does the magic happen when you fuse Python with AI to build something as interactive and responsive as a chatbot? Whatever your reason, you’ve come to the right place to learn how to craft your own Python AI chatbot. An Omegle Chatbot for promotion of Social media content or use it to increase views on YouTube.

Now that we have a token being generated and stored, this is a good time to update the get_token dependency in our /chat WebSocket. We do this to check for a valid token before starting the chat session. This is necessary because we are not authenticating users, and we want to dump the chat data after a defined period.

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Your chatbot isn’t a smarty plant just yet, but everyone has to start somewhere. You already helped it grow by training the chatbot with preprocessed conversation data from a WhatsApp chat export. You’ll get the basic chatbot up and running right away in step one, but the most interesting part is the learning phase, when you get to train your chatbot. The quality and preparation of your training data will make a big difference in your chatbot’s performance. We can send a message and get a response once the chatbot Python has been trained.

Following is a simple example to get started with ChatterBot in python. Run the following command in the terminal or in the command prompt to install ChatterBot in python. With increasing advancements, there also comes a point where it becomes fairly difficult to work with the chatbots. To improve its responses, try to edit your intents.json here and add more instances of intents and responses in it. Okay, so now that you have a rough idea of the deep learning algorithm, it is time that you plunge into the pool of mathematics related to this algorithm. The Chatbot Python adheres to predefined guidelines when it comprehends user questions and provides an answer.

Having completed all of that, you now have a chatbot capable of telling a user conversationally what the weather is in a city. The difference between this bot and rule-based chatbots is that the user does not have to enter the same statement every time. Instead, they can phrase their request in different ways and even make typos, but the chatbot would still be able to understand them due to spaCy’s NLP features. In the previous two steps, you installed spaCy and created a function for getting the weather in a specific city. Now, you will create a chatbot to interact with a user in natural language using the weather_bot.py script. A Python chatbot is an artificial intelligence-based program that mimics human speech.

The clean_corpus() function returns the cleaned corpus, which you can use to train your chatbot. For example, you may notice that the first line of the provided chat export isn’t part of the conversation. Also, each actual message starts with metadata that includes a date, a time, and the username of the message sender. In this example, you saved the chat export file to a Google Drive folder named Chat exports.

The messages sent and received within this chat session are stored with a Message class which creates a chat id on the fly using uuid4. The only data we need to provide when initializing this Message class is the message text. In Redis Insight, you will see a new mesage_channel created and a time-stamped queue filled with the messages sent from the client. This timestamped queue is important to preserve the order of the messages. We created a Producer class that is initialized with a Redis client. We use this client to add data to the stream with the add_to_stream method, which takes the data and the Redis channel name.

Whether it’s chatbots, web crawlers, or automation bots, Python’s simplicity, extensive ecosystem, and NLP tools make it well-suited for developing effective and efficient bots. Let us now explore step by step and unravel the answer of how to create a chatbot in Python. It does not have any clue who the client is (except that it’s a unique token) and uses the message in the queue to send requests to the Huggingface inference API. If the token has not timed out, the data will be sent to the user. Note that we also need to check which client the response is for by adding logic to check if the token connected is equal to the token in the response.

It uses TF-IDF (Term Frequency-Inverse Document Frequency) and cosine similarity to match user input to the proper answers. Artificial intelligence is used to construct a computer program known as “a chatbot” that simulates human chats with users. It employs a technique known as NLP to comprehend the user’s inquiries and offer pertinent information. Chatbots have various functions in customer service, information retrieval, and personal support.

First of all, create a new project , named it as ChatterBot or as you like. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. This website is using a security service to protect itself from online attacks. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. I also received a popup notification that the clang command would require developer tools I didn’t have on my computer.

This URL returns the weather information (temperature, weather description, humidity, and so on) of the city and provides the result in JSON format. After that, you make a GET request to the API endpoint, store the result in a response variable, and then convert the response to a Python dictionary for easier access. Index.html file will have the template of the app and style.css will contain the style sheet with the CSS code. After we execute the above program we will get the output like the image shown below. After we are done setting up the flask app, we need to add two more directories static and templates for HTML and CSS files.

After creating the pairs of rules above, we define the chatbot using the code below. The code is simple and prints a message whenever the function is invoked. We will use Redis JSON to store the chat data and also use Redis Streams for handling the real-time communication with the huggingface inference API.

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Train the model on a dataset and integrate it into a chat interface for interactive responses. In this article, we have learned how to make a chatbot in python using the ChatterBot library using the flask framework. Don’t be in the sidelines when that happens, to master your skills enroll in Edureka’s Python certification program and become a leader. No doubt, chatbots are our new friends and are projected to be a continuing technology trend in AI. Chatbots can be fun, if built well  as they make tedious things easy and entertaining.

With Python, developers can join a vibrant community of like-minded individuals who are passionate about pushing the boundaries of chatbot technology. After the get_weather() function in your file, create a chatbot() function representing the chatbot that will accept a user’s statement and return a response. In this step, you’ll set up a virtual environment and install the necessary dependencies. You’ll also create a working command-line chatbot that can reply to you—but it won’t have very interesting replies for you yet.

Also, create a folder named redis and add a new file named config.py. You can try this out by creating a random sleep time.sleep(10) before sending the hard-coded response, and sending a new message. Then try to connect with a different token in a new postman session. Once you have set up your Redis database, create a new folder in the project root (outside the server folder) named worker. We will be using a free Redis Enterprise Cloud instance for this tutorial.

So far, we are sending a chat message from the client to the message_channel (which is received by the worker that queries the AI model) to get a response. Next we get the chat history from the cache, which will now include the most recent data we added. Then update the main function in main.py in the worker directory, and run python main.py to see the new results in the Redis database. To handle chat history, we need to fall back to our JSON database.

In our blog post-ChatBot Building Using Python, we will discuss how to build a simple Chatbot in Python programming and its benefits. Chatbots deliver instantly by understanding the user requests with pre-defined rules and AI based chatbots. This chatbot is going to solve mathematical problems, so ‘chatterbot.logic.MathematicalEvaluation’ is included.

So let’s kickstart the learning journey with a hands-on python chatbot project that will teach you step by step on how to build a chatbot from scratch in Python. In this 2 hour long project-based course, you will learn to create chatbots with Rasa and Python. Rasa is a framework for developing AI powered, industrial grade chatbots. It’s incredibly powerful, and is used by developers worldwide to create chatbots and contextual assistants.

The chat client creates a token for each chat session with a client. This function will take the city name as a parameter and return the weather description of the city. This script demonstrates how to create a basic chatbot using ChatterBot. To select a response to your input, ChatterBot uses the BestMatch logic adapter by default. This logic adapter uses the Levenshtein distance to compare the input string to all statements in the database.

The first line of code below imports the library, while the second line uses the nltk.chat module to import the required utilities. After the statement is passed into the loop, the chatbot will output the proper response from the database. The subsequent accesses will return the cached dictionary without reevaluating the annotations again. Instead, the steering council has decided to delay its implementation until Python 3.14, giving the developers ample time to refine it. The document also mentions numerous deprecations and the removal of many dead batteries creating a chatbot in python from the standard library.

It then picks a reply to the statement that’s closest to the input string. Implement conversation flow, handle user input, and integrate with https://chat.openai.com/ your application. To create a conversational chatbot, you could use platforms like Dialogflow that help you design chatbots at a high level.

The course includes programming-related assignments and practical activities to help students learn more effectively. This blog post will guide you through the process by providing an overview of what it takes to build a successful chatbot. To learn more about text analytics and natural language processing, please refer to the following guides.

However, like the rigid, menu-based chatbots, these chatbots fall short when faced with complex queries. Moreover, including a practical use case with relevant parameters showcases the real-world application of chatbots, emphasizing their relevance and impact on enhancing user experiences. By staying curious and continually learning, developers can harness the potential of AI and NLP to create chatbots that revolutionize the way we interact with technology.

Frequently asked questions

To make this comparison, you will use the spaCy similarity() method. This method computes the semantic similarity of two statements, that is, how similar they are in meaning. This will help you determine if the user is trying to check the weather or not. Congratulations, you’ve built a Python chatbot using the ChatterBot library!

Python is an effective and simple programming language for building chatbots and frameworks like ChatterBot. In 1994, when Michael Mauldin produced his first a chatbot called “Julia,” and that’s the time when the word “chatterbot” appeared in our dictionary. A chatbot is described as a computer program designed to simulate conversation with human users, particularly over the internet. It is software designed to mimic how people interact with each other. It can be seen as a virtual assistant that interacts with users through text messages or voice messages and this allows companies to get more close to their customers. Each challenge presents an opportunity to learn and improve, ultimately leading to a more sophisticated and engaging chatbot.

Here, we will remove unicode characters, escaped html characters, and clean up whitespaces. A database file named ‘db.sqlite3’ will be created in your working folder that will store all the conversation data. Use the ChatterBotCorpusTrainer to train your chatbot using an English language corpus. Now that we have a solid understanding of NLP and the different types of chatbots, it‘s time to get our hands dirty. Continuing with the scenario of an ecommerce owner, a self-learning chatbot would come in handy to recommend products based on customers’ past purchases or preferences. You can use a rule-based chatbot to answer frequently asked questions or run a quiz that tells customers the type of shopper they are based on their answers.

If your message data has a different/nested structure, just provide the path to the array you want to append the new data to. First, we add the Huggingface connection credentials to the .env file within our worker directory. The model we will be using is the GPT-J-6B Model provided by EleutherAI. It’s a generative language model which was trained with 6 Billion parameters. In order to use Redis JSON’s ability to store our chat history, we need to install rejson provided by Redis labs. In the .env file, add the following code – and make sure you update the fields with the credentials provided in your Redis Cluster.

Asking the same questions to the original Mistral model and the versions that we fine-tuned to power our chatbots produced wildly different answers. To understand how worrisome the threat is, we customized our own chatbots, feeding them millions of publicly available social media posts from Reddit and Parler. AI SDK requires no sign-in to use, and you can compare multiple models at the same time.

Diversity makes our model robust to many forms of inputs and queries. You can foun additiona information about ai customer service and artificial intelligence and NLP. You can foun additiona information about ai customer service and artificial intelligence and NLP. Let’s have a quick recap as to what we have achieved with our chat system.

Issues and save the complicated ones for your human representatives in the morning. Its versatility and an array of robust libraries make it the go-to language for chatbot creation. First, you import the requests library, so you are able to work with and make HTTP requests. The next line begins the definition of the function get_weather() to retrieve the weather of the specified city.

This allows you to be selective about who’s on your service team. You won’t need as many representatives to answer simple requests. The significance of Python AI chatbots is paramount, python chatbot especially in today’s digital age. After you’ve completed that setup, your deployed chatbot can keep improving based on submitted user responses from all over the world.

Yes, because of its simplicity, extensive library and ability to process languages, Python has become the preferred language for building chatbots. Once the dependence has been established, we can build and train our chatbot. We will import the ChatterBot module and start a new Chatbot Python instance.

So, start your Python chatbot development journey today and be a part of the future of AI-powered conversational interfaces. Advancements in NLP have greatly enhanced the capabilities of chatbots, allowing them to understand and respond to user queries more effectively. You’ll soon notice that pots may not be the best conversation partners after all. After data cleaning, you’ll retrain your chatbot and give it another spin to experience the improved performance.

Instead, you’ll use a specific pinned version of the library, as distributed on PyPI. Popular Python libraries for chatbot development include NLTK, spaCy for natural language processing, TensorFlow, PyTorch for machine learning, and ChatterBot for simple implementations. Choose based on your project’s complexity, requirements, and library familiarity. While the connection is open, we receive any messages sent by the client with websocket.receive_test() and print them to the terminal for now. WebSockets are a very broad topic and we only scraped the surface here. This should however be sufficient to create multiple connections and handle messages to those connections asynchronously.

We’ll also use the requests library to send requests to the Huggingface inference API. Redis is an open source in-memory data store that you can use as a database, cache, message broker, and streaming engine. It supports a number of data structures and is a perfect solution for distributed applications with real-time capabilities. In the next part of this tutorial, we will focus Chat GPT on handling the state of our application and passing data between client and server. To be able to distinguish between two different client sessions and limit the chat sessions, we will use a timed token, passed as a query parameter to the WebSocket connection. Ultimately we will need to persist this session data and set a timeout, but for now we just return it to the client.

We’ll use the token to get the last chat data, and then when we get the response, append the response to the JSON database. The token created by /token will cease to exist after 60 minutes. So we can have some simple logic on the frontend to redirect the user to generate a new token if an error response is generated while trying to start a chat. Next, in Postman, when you send a POST request to create a new token, you will get a structured response like the one below.

The client listening to the response_channel immediately sends the response to the client once it receives a response with its token. Next, we want to create a consumer and update our worker.main.py to connect to the message queue. We want it to pull the token data in real-time, as we are currently hard-coding the tokens and message inputs. Update worker.src.redis.config.py to include the create_rejson_connection method. Also, update the .env file with the authentication data, and ensure rejson is installed. It will store the token, name of the user, and an automatically generated timestamp for the chat session start time using datetime.now().

I’ll use the ChatterBot library in Python, which makes building AI-based chatbots a breeze. With chatbots, NLP comes into play to enable bots to understand and respond to user queries in human language. Recall that if an error is returned by the OpenWeather API, you print the error code to the terminal, and the get_weather() function returns None. In this code, you first check whether the get_weather() function returns None. If it doesn’t, then you return the weather of the city, but if it does, then you return a string saying something went wrong.

You can build an industry-specific chatbot by training it with relevant data. ChatterBot makes it easy to create software that engages in conversation. Every time a chatbot gets the input from the user, it saves the input and the response which helps the chatbot with no initial knowledge to evolve using the collected responses.

Additionally, the chatbot will remember user responses and continue building its internal graph structure to improve the responses that it can give. You’ll achieve that by preparing WhatsApp chat data and using it to train the chatbot. Beyond learning from your automated training, the chatbot will improve over time as it gets more exposure to questions and replies from user interactions.

You’ll have to set up that folder in your Google Drive before you can select it as an option. As long as you save or send your chat export file so that you can access to it on your computer, you’re good to go. The conversation isn’t yet fluent enough that you’d like to go on a second date, but there’s additional context that you didn’t have before! When you train your chatbot with more data, it’ll get better at responding to user inputs. Now that you’ve created a working command-line chatbot, you’ll learn how to train it so you can have slightly more interesting conversations.

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