simple Chatbot using Nltk.ipynb

Kernel: Python 3 (ipykernel)

import random
from nltk.chat.util import Chat, reflections

# Define additional reflections for generating variations
additional_reflections = {
    "i am": "you are",
    "i'm": "you're",
    "i": "you",
    "my": "your",
    "you are": "I am",
    "you're": "I'm",
    "you": "me",
    "your": "my",
}

# Responses for the counselling assistant
counselling_responses = [
    (r"I feel (.*)", ["Why do you feel {0}?", "I'm sorry to hear that. Can you tell me more about why you feel {0}?"]),
    (r"(.*) (depressed|sad|unhappy)", ["I'm here to listen. What's been bothering you?", "It's okay to feel down sometimes. What's been on your mind?"]),
    (r"I need someone to talk to", ["I'm here to listen. You can share anything with me."]),
]

def generate_pairs(num_pairs, responses):
    generated_pairs = []
    for _ in range(num_pairs):
        pattern, responses_list = random.choice(responses)
        generated_pairs.append((pattern, random.choice(responses_list)))
    return generated_pairs

# Generate 500 pairs
generated_pairs = generate_pairs(500, counselling_responses)

# Save generated pairs to a file
filename = "generated_chat_responses.txt"
with open(filename, 'w') as file:
    for pattern, response in generated_pairs:
        file.write(f"{pattern}::{response}\n")  # Write pattern and response to the file

# Function to read pattern-response pairs from a file
def read_responses_from_file(filename):
    responses = []
    with open(filename, 'r') as file:
        for line in file:
            pattern, response = line.strip().split("::")
            responses.append((pattern, response))
    return responses

# File to read generated pattern-response pairs
response_file = filename

# Create chatbot
counselling_chatbot = Chat(read_responses_from_file(response_file), reflections)

# Test the chatbot
print(counselling_chatbot.respond("I feel sad"))

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import tkinter as tk
from nltk.chat.util import Chat, reflections

# Function to read pattern-response pairs from a file
def read_responses_from_file(filename):
    responses = []
    with open(filename, 'r') as file:
        for line in file:
            pattern, response = line.strip().split("::")
            responses.append((pattern, response))
    return responses

# File containing generated pattern-response pairs
response_file = "generated_chat_responses.txt"

# Create CounsellingBot
counselling_bot = Chat(read_responses_from_file(response_file), reflections)

# Function to handle sending a message and getting a response
def send_message():
    user_input = user_entry.get()
    user_entry.delete(0, tk.END)
    if user_input.lower() == "none":
        bot_response.config(text="Sure, take your time. I'll be here when you're ready to talk.")
    elif user_input.lower() == "exit":
        root.destroy()
    else:
        response = counselling_bot.respond(user_input)
        bot_response.config(text=response)

# Create the main window
root = tk.Tk()
root.title("CounsellingBot")

# Create widgets
user_entry = tk.Entry(root, width=50)
send_button = tk.Button(root, text="Send", command=send_message)
bot_response = tk.Label(root, text="", wraplength=400)

# Place widgets on the grid
user_entry.grid(row=0, column=0, padx=5, pady=5)
send_button.grid(row=0, column=1, padx=5, pady=5)
bot_response.grid(row=1, column=0, columnspan=2, padx=5, pady=5)

# Start the main loop
root.mainloop()