chatbot.py

# -*- coding: utf-8 -*-
"""ChatBot.ipynb

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/1r_F0WtD5mllbnGUuIqevrml7QrFCKads
"""

pip install nltk

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

pairs = [
    [
        r"hi|hello|hey",
        ["Hello!", "Hi there!", "Hey! How can I help you today?"]
    ],
    [
        r"not good",
        ["why, what happen?"]
    ],
    [
        r"can you suggest me something?|Something else?",
        ["Sure, go hear some music", "Sure, go on a lunch date"]
    ],
    [
        r"how to be happy?",
        ["live bro!"]
    ],
    [
        r"how are you ?",
        ["I'm good, thanks for asking.", "I'm doing well. How about you?"]
    ],
    [
        r"what is your name ?",
        ["I'm a chatbot. You can call me Bot.", "I don't have a name, but you can call me bot."]
    ],
    [
        r"bye|goodbye|okay,bye",
        ["Goodbye!", "Bye. Have a great day!"]
    ],
]

okabot = Chat(pairs, reflections)

print("Bot: Hey, how can I assist you today? Type 'exit' to end- ")

while True:
    user_input = input("You: ")
    if user_input.lower() == 'exit':
        print("bot: Goodbye!")
        break
    else:
        response = bot.respond(user_input)
        print("bot:", response)